initial commit from local files
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780ae60cb4
149
Darlehenberechner.java
Normal file
149
Darlehenberechner.java
Normal file
@ -0,0 +1,149 @@
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import java.text.DecimalFormat;
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import java.math.BigDecimal;
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import java.math.MathContext;
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import java.time.Month;
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import java.time.YearMonth;
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class Darlehenberechner {
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private static final class Konfiguration {
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private BigDecimal darlehenswert;
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private BigDecimal zinssatzProzent;
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private BigDecimal monatlicheRate;
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private Integer laufzeitJahre;
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private Integer tilgungsfreieZeit;
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private YearMonth anfangsmonat;
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public BigDecimal getDarlehenswert() {
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return darlehenswert;
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}
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public Konfiguration setDarlehenswert(BigDecimal darlehenswert) {
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this.darlehenswert = darlehenswert;
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return this;
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}
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public BigDecimal getZinssatzProzent() {
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return zinssatzProzent;
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}
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public Konfiguration setZinssatzProzent(BigDecimal zinssatzProzent) {
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this.zinssatzProzent = zinssatzProzent;
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return this;
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}
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public BigDecimal getMonatlicheRate() {
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return monatlicheRate;
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}
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public Konfiguration setMonatlicheRate(BigDecimal monatlicheRate) {
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this.monatlicheRate = monatlicheRate;
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return this;
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}
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public Integer getLaufzeitJahre() {
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return laufzeitJahre;
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}
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public Konfiguration setLaufzeitJahre(Integer laufzeitJahre) {
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this.laufzeitJahre = laufzeitJahre;
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return this;
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}
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public Integer getTilgungsfreieZeit() {
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return tilgungsfreieZeit;
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}
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public Konfiguration setTilgungsfreieZeit(Integer tilgungsfreieZeit) {
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this.tilgungsfreieZeit = tilgungsfreieZeit;
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return this;
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}
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public YearMonth getAnfangsmonat() {
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return anfangsmonat;
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}
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public Konfiguration setAnfangsmonat(YearMonth anfangsmonat) {
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this.anfangsmonat = anfangsmonat;
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return this;
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}
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}
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private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("#,##0.00");
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private static final BigDecimal ZWOELF = BigDecimal.valueOf(12);
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public static void main(String[] args) {
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var konfig = new Konfiguration()
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.setDarlehenswert(BigDecimal.valueOf(168_000))
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.setZinssatzProzent(BigDecimal.valueOf(3.73))
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.setMonatlicheRate(BigDecimal.valueOf(1_500))
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.setTilgungsfreieZeit(0)
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.setAnfangsmonat(YearMonth.of(2024, Month.SEPTEMBER));
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berechneWerte(konfig);
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/*var konfig = new Konfiguration()
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.setDarlehenswert(BigDecimal.valueOf(168_000))
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.setZinssatzProzent(BigDecimal.valueOf(3.73))
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.setMonatlicheRate(BigDecimal.valueOf(1_500))
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.setTilgungsfreieZeit(0)
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.setLaufzeitJahre(11)
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.setAnfangsmonat(YearMonth.of(2024, Month.SEPTEMBER));
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berechneWerte(konfig);*/
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}
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private static void berechneWerte(Konfiguration konfig) {
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BigDecimal zinssatzReal = konfig.getZinssatzProzent().divide(BigDecimal.valueOf(100), MathContext.DECIMAL128);
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BigDecimal monatlicheRate = konfig.getMonatlicheRate();
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Integer laufzeitJahre = konfig.getLaufzeitJahre();
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Integer tilgungsfreieZeit = konfig.getTilgungsfreieZeit();
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BigDecimal restschuld = konfig.getDarlehenswert();
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YearMonth aktuellerMonat = konfig.getAnfangsmonat();
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BigDecimal summeZinsen = BigDecimal.ZERO;
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BigDecimal summeTilgung = BigDecimal.ZERO;
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int laufzeitMonate = 0;
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while ((laufzeitJahre == null || laufzeitMonate < (laufzeitJahre * 12)) && restschuld.signum() > 0) {
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// berechne Beträge/ aktualisiere Restschuld
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BigDecimal zinsbetrag = restschuld.multiply(zinssatzReal).divide(ZWOELF, MathContext.DECIMAL128);
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if (monatlicheRate.compareTo(restschuld) > 0) {
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monatlicheRate = restschuld.add(zinsbetrag); // die letzte Rate ist gleich der Restschuld + Zinsen
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}
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BigDecimal tilgungsbetrag = tilgungsfreieZeit != null && tilgungsfreieZeit > 0 ? BigDecimal.ZERO : monatlicheRate.subtract(zinsbetrag);
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restschuld = restschuld.subtract(tilgungsbetrag);
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System.out.println(aktuellerMonat + ": " + DECIMAL_FORMAT.format(monatlicheRate) + " = " + DECIMAL_FORMAT.format(zinsbetrag)
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+ " + " + DECIMAL_FORMAT.format(tilgungsbetrag) + " | " + DECIMAL_FORMAT.format(restschuld));
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// berechne Summen für Zusammenfassung
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summeZinsen = summeZinsen.add(zinsbetrag);
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summeTilgung = summeTilgung.add(tilgungsbetrag);
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if ((laufzeitMonate > 0 && laufzeitMonate % 11 == 0) || aktuellerMonat.getMonthValue() == 12) {
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System.out.println(" " + DECIMAL_FORMAT.format(summeZinsen) + " + " + DECIMAL_FORMAT.format(summeTilgung));
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}
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// aktualisiere Werte für den nächsten Lauf
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aktuellerMonat = aktuellerMonat.plusMonths(1);
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laufzeitMonate++;
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if (tilgungsfreieZeit != null) {
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tilgungsfreieZeit--;
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}
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}
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// letzte Zusammenfassung
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System.out.println(" " + DECIMAL_FORMAT.format(summeZinsen) + " + " + DECIMAL_FORMAT.format(summeTilgung));
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// Ausgabe Laufzeit + Restschuld
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laufzeitJahre = laufzeitJahre == null ? laufzeitMonate / 12 : laufzeitJahre;
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int laufzeitMonateTeil = laufzeitMonate - (laufzeitJahre * 12);
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System.out.println("Laufzeit: " + laufzeitJahre + " Jahre " + laufzeitMonateTeil + " Monate");
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System.out.println("Restschuld: " + DECIMAL_FORMAT.format(restschuld));
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}
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}
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162
Java11.java
Normal file
162
Java11.java
Normal file
@ -0,0 +1,162 @@
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import java.awt.Point;
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import java.io.IOException;
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import java.lang.annotation.Documented;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.*;
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import java.util.function.Predicate;
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import java.util.stream.Collectors;
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class Java11 {
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public static void main(String[] args) {
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////////
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// 1. //
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////////
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// if the resource is referenced by a final or effectively final variable,
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// a try-with-resources statement can manage a resource without a new variable being declared:
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MyAutoCloseable mac = new MyAutoCloseable();
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try (mac) {
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// do some stuff with mac
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}
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////////
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// 2. //
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////////
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// use diamond operator in conjunction with anonymous inner classes
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List<Integer> fc = new ArrayList<>(1) {}; // anonymous inner class
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List<? extends Integer> fc0 = new ArrayList<>(1) {
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// anonymous inner class
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};
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List<?> fc1 = new ArrayList<>(1) {}; // anonymous inner class
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////////
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// 4. //
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////////
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// Local Variable Type Inference
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var message = "Hello, Java 10";
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var point = new Point(1, 2);
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////////
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// 5. //
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////////
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// immutable Collections/ Maps
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Map<String, Integer> meineMap = Map.of();
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Set<String> meinSet = Set.of("key1", "key2", "key3");
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List<String> meineListe = List.copyOf(meinSet);
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////////
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// 6. //
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////////
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// Optional to Stream Optional.stream() gives us an easy way to you use the power of Streams on Optional elements
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List<String> filteredList = new ArrayList<Optional<String>>().stream()
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.flatMap(Optional::stream)
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.collect(Collectors.toList());
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////////
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// 7. //
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////////
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// Collectors get additional methods to collect a Stream into unmodifiable List, Map or Set:
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List<Integer> evenList = new ArrayList<Integer>().stream()
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.filter(i -> i % 2 == 0)
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.collect(Collectors.toUnmodifiableList());
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////////
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// 8. //
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////////
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// Optional got a new method orElseThrow() which doesn’t take any argument and throws NoSuchElementException if no value is present:
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Integer firstEven = List.of(1, 2, 3).stream()
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.filter(i -> i % 2 == 0)
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.findFirst()
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.orElseThrow();
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////////
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// 9. //
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////////
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// Java 11 adds a few new methods to the String class
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var multilineString = "Baeldung helps \n \n developers \n explore Java.";
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List<String> lines = multilineString.lines().collect(Collectors.toList());
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assert " ".isBlank();
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assert " x ".strip().equals("x");
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assert " x ".stripLeading().equals("x ");
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assert " x ".stripTrailing().equals(" x");
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assert "x".repeat(5).equals("xxxxx");
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/////////
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// 10. //
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/////////
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// We can use the new readString and writeString static methods from the Files class:
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String fileContent = null;
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try {
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Path filePath = Files.writeString(Files.createTempFile("demo", ".txt"), "Sample text");
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fileContent = Files.readString(filePath);
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} catch (IOException ioe) {}
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assert fileContent.equals("Sample text");
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/////////
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// 11. //
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/////////
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// The java.util.Collection interface contains a new default toArray method which takes an IntFunction argument.
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List<String> sampleList = List.of("Java", "Kotlin");
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String[] sampleArray = sampleList.toArray(String[]::new);
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/////////
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// 12. //
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/////////
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// A static not method has been added to the Predicate interface.
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sampleList = List.of("Java", "\n \n", "Kotlin", " ");
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List<String> withoutBlanks = sampleList.stream()
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.filter(Predicate.not(String::isBlank))
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.collect(Collectors.toList());
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// While not(isBlank) reads more naturally than isBlank.negate(), the big advantage is that we can also use not with method references,
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// like not(String::isBlank).
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/////////
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// 13. //
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/////////
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// Support for using the local variable syntax (var keyword) in lambda parameters was added in Java 11.
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// We can make use of this feature to apply modifiers to our local variables, like defining a type annotation:
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sampleList = List.of("Java", "Kotlin");
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String resultString = sampleList.stream()
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.map((@Nonnull var x) -> x.toUpperCase())
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.collect(Collectors.joining(", "));
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assert resultString.equals("JAVA, KOTLIN");
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}
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}
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class MyAutoCloseable implements AutoCloseable {
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public void close() {}
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}
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////////
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// 3. //
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////////
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// Interfaces in the upcoming JVM version can have private methods, which can be used to split lengthy default methods
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interface InterfaceWithPrivateMethods {
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private static String staticPrivate() {
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return "static private";
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}
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private String instancePrivate() {
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return "instance private";
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}
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default void check() {
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String result = staticPrivate();
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InterfaceWithPrivateMethods pvt = new InterfaceWithPrivateMethods() {
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// anonymous class
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};
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result = pvt.instancePrivate();
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}
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}
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@Documented
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@Retention(RetentionPolicy.RUNTIME)
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@Target(ElementType.PARAMETER)
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public @interface Nonnull {}
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338
LoadingBar.java
Normal file
338
LoadingBar.java
Normal file
@ -0,0 +1,338 @@
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import java.text.DecimalFormat;
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import java.time.LocalTime;
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import java.time.format.DateTimeFormatter;
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import java.time.temporal.ChronoUnit;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Objects;
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import java.util.concurrent.TimeUnit;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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class LoadingBar {
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private static final String TIME_FORMAT = "HH:mm";
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private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern(TIME_FORMAT);
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private static final Pattern TIME_PATTERN = Pattern.compile("(?>[01][0-9]|2[0-4]):[0-5][0-9]");
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private static final Pattern LUNCH_DURATION_PATTERN = Pattern.compile("\\d+");
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private static final Pattern OFFSET_PATTERN = Pattern.compile("[\\+\\-]\\d+");
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private static final DecimalFormat PERCENTAGE_FORMAT = new DecimalFormat("00.00");
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private static final int MIN_LUNCH_DURATION = 30;
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private static final LocalTime LATEST_LUNCH_TIME = LocalTime.of(13, 30);
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private static final int DEFAULT_NUMBER_WORK_MINS_BEFORE_LUNCH = 5 * 60;
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private static final int MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH = 6 * 60;
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private static final int MAX_NUMBER_WORK_MINS = 8 * 60;
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private static enum DaySection {
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MITTAG("-m", "Mittag"),
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ZAPFENSTREICH("-z", "Zapfenstreich");
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private final String param;
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private final String description;
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||||
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||||
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private DaySection(String param, String description) {
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this.param = param;
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this.description = description;
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}
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|
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public static DaySection byParam(String param) {
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return Arrays.stream(DaySection.values()).filter((DaySection section) -> section.getParam().equals(param)).findFirst().orElse(null);
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||||
}
|
||||
|
||||
|
||||
public String getParam() {
|
||||
return param;
|
||||
}
|
||||
|
||||
|
||||
public String getDescription() {
|
||||
return description;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
public static void main(String[] args) {
|
||||
if (args.length > 0 && Objects.equals(args[0], "--help")) {
|
||||
printHelp();
|
||||
return;
|
||||
}
|
||||
verifyMinimumNumberOfArgs(args);
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||||
String nextArg = args[0];
|
||||
verifyTimeFormat(nextArg, "Erstes Argument");
|
||||
var startTime = LocalTime.parse(nextArg, TIME_FORMATTER);
|
||||
nextArg = args[1];
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||||
var section = DaySection.byParam(nextArg);
|
||||
verifyDaySection(section, nextArg);
|
||||
if (section == DaySection.MITTAG) {
|
||||
handleMittagspause(args, startTime);
|
||||
} else {
|
||||
handleZapfenstreich(args, startTime);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
private static void handleMittagspause(String[] args, LocalTime startTime) {
|
||||
if (args.length == 2) {
|
||||
showLoadingBarMittagspause(startTime);
|
||||
return;
|
||||
}
|
||||
String nextArg = args[2];
|
||||
verifyTimeFormat(nextArg, "Argument nach " + DaySection.MITTAG.getParam());
|
||||
var maxMittagspause = LocalTime.parse(nextArg, TIME_FORMATTER);
|
||||
showLoadingBarMittagspause(startTime, maxMittagspause);
|
||||
}
|
||||
|
||||
|
||||
private static void handleZapfenstreich(String[] args, LocalTime startTime) {
|
||||
Integer lunchDuration = null;
|
||||
if (args.length == 2) {
|
||||
showLoadingBarZapfenstreich(startTime, lunchDuration);
|
||||
return;
|
||||
}
|
||||
String nextArg = args[2];
|
||||
LocalTime maxZapfenstreich = null;
|
||||
int endTimeOffset = 0;
|
||||
if (TIME_PATTERN.matcher(nextArg).matches()) {
|
||||
maxZapfenstreich = LocalTime.parse(nextArg, TIME_FORMATTER);
|
||||
} else if (OFFSET_PATTERN.matcher(nextArg).matches()) {
|
||||
endTimeOffset = Integer.parseInt(nextArg);
|
||||
} else {
|
||||
verifyDurationFormat(nextArg, "Argument nach " + DaySection.ZAPFENSTREICH.getParam(), true); // FSFIXME erweitere Fehlermeldung
|
||||
lunchDuration = Integer.parseInt(nextArg);
|
||||
}
|
||||
if (args.length == 3) {
|
||||
if (maxZapfenstreich == null && endTimeOffset == 0) {
|
||||
showLoadingBarZapfenstreich(startTime, lunchDuration);
|
||||
} else if (maxZapfenstreich == null) {
|
||||
showLoadingBarZapfenstreich(startTime, lunchDuration, endTimeOffset);
|
||||
} else {
|
||||
showLoadingBarZapfenstreich(startTime, lunchDuration, maxZapfenstreich);
|
||||
}
|
||||
return;
|
||||
}
|
||||
nextArg = args[3];
|
||||
if (lunchDuration == null) {
|
||||
System.out.println("Letztes Argument darf nur auf Mittagspausendauer folgen.");
|
||||
System.exit(1);
|
||||
}
|
||||
if (maxZapfenstreich == null && !OFFSET_PATTERN.matcher(nextArg).matches()) {
|
||||
verifyTimeFormat(nextArg, "Letztes Argument nach " + DaySection.ZAPFENSTREICH.getParam() + " und Mittagspausendauer");
|
||||
maxZapfenstreich = LocalTime.parse(nextArg, TIME_FORMATTER);
|
||||
showLoadingBarZapfenstreich(startTime, lunchDuration, maxZapfenstreich);
|
||||
return;
|
||||
}
|
||||
verifyOffsetFormat(nextArg, "Letztes Argument nach " + DaySection.ZAPFENSTREICH.getParam() + " und Enduhrzeit");
|
||||
endTimeOffset = Integer.parseInt(nextArg);
|
||||
showLoadingBarZapfenstreich(startTime, lunchDuration, endTimeOffset);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyMinimumNumberOfArgs(String[] args) {
|
||||
if (args.length >= 2) {
|
||||
return;
|
||||
}
|
||||
System.out.println("Mindestens 2 Argumente müssen gegeben sein.");
|
||||
printHelp();
|
||||
System.exit(1);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyTimeFormat(String param, String errMsgPrefix) {
|
||||
verifyInputFormat(TIME_PATTERN, param, errMsgPrefix, true, false);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyDurationFormat(String param, String errMsgPrefix, boolean timeInputPossible) {
|
||||
verifyInputFormat(LUNCH_DURATION_PATTERN, param, errMsgPrefix, false, timeInputPossible);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyOffsetFormat(String param, String errMsgPrefix) {
|
||||
verifyInputFormat(OFFSET_PATTERN, param, errMsgPrefix, false, false);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyInputFormat(Pattern pattern, String param, String errMsgPrefix, boolean timeInput, boolean timeInputPossible) {
|
||||
if (pattern.matcher(param).matches()) {
|
||||
return;
|
||||
} // FSFIXME fine tune message -> HH:mm, mm, -+mm
|
||||
var firstInputPart = timeInput ? "Uhrzeitformat ("+ TIME_FORMAT + ")" : "Minutenanzahl (" + LUNCH_DURATION_PATTERN + ")";
|
||||
var possibleTimeInputPart = !timeInput && timeInputPossible ? " oder Uhrzeitformat ("+ TIME_FORMAT + ")" : "";
|
||||
System.out.println(errMsgPrefix + " \"" + param + "\" muss " + firstInputPart + possibleTimeInputPart + " entsprechen.");
|
||||
System.exit(1);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyDaySection(DaySection section, String param) {
|
||||
if (section != null) {
|
||||
return;
|
||||
}
|
||||
List<String> sectionDescs = Arrays.stream(DaySection.values()).map((DaySection ds) -> ds.getDescription() + " (" + ds.getParam() + ")")
|
||||
.collect(Collectors.toList());
|
||||
String sectionDescsJoined = String.join(" oder ", sectionDescs);
|
||||
System.out.println("Argument nach Startzeit \"" + param + "\" muss Angabe für " + sectionDescsJoined + " sein.");
|
||||
System.exit(1);
|
||||
}
|
||||
|
||||
|
||||
private static void printHelp() {
|
||||
System.out.println(new StringBuilder().append("Mögliche Argumente für LoadingBar:\n")
|
||||
.append("Normalfall Vormittag (Mittagspause <= ").append(LATEST_LUNCH_TIME).append(")\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.MITTAG.getParam()).append("\n")
|
||||
.append("Vormittag mit expliziter Mittagspause (<= ").append(LATEST_LUNCH_TIME).append(")\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.MITTAG.getParam()).append(" ").append(TIME_FORMAT).append("\n")
|
||||
.append("Normalfall Nachmittag (Mittagspause ").append(MIN_LUNCH_DURATION).append(" min)\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.ZAPFENSTREICH.getParam()).append("\n")
|
||||
.append("Nachmittag mit expliziter Länge Mittagspause (Mittagspause unter ").append(MIN_LUNCH_DURATION).append(" min wird auf ").append(MIN_LUNCH_DURATION).append(" min korrigiert)\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.ZAPFENSTREICH.getParam()).append(" mm\n")
|
||||
.append("Nachmittag mit explizitem Feierabend (Mittagspause je nach Minimum (s.u.))\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.ZAPFENSTREICH.getParam()).append(" ").append(TIME_FORMAT).append("\n")
|
||||
.append("Nachmittag mit abweichender Minutenanzahl Arbeitszeit\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.ZAPFENSTREICH.getParam()).append(" -+mm\n")
|
||||
.append("Nachmittag mit explizitem Feierabend u. expliziter Länge Mittagspause (Mittagspause unter Minimum (s.u.) wird auf Minimum korrigiert)\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.ZAPFENSTREICH.getParam()).append(" mm ").append(TIME_FORMAT).append("\n")
|
||||
.append("Nachmittag mit explizitem Feierabend u. abweichender Minutenanzahl Arbeitszeit\n")
|
||||
.append(TIME_FORMAT).append(" ").append(DaySection.ZAPFENSTREICH.getParam()).append(" ").append(TIME_FORMAT).append(" -+mm\n\n")
|
||||
.append("Mittagspause minimum in Minuten:\n")
|
||||
.append(" - bis ").append(MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH).append(" min (")
|
||||
.append(MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH / 60).append(" std): 0\n")
|
||||
.append(" - bis ").append(MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH).append(" min + ")
|
||||
.append(MIN_LUNCH_DURATION).append(" min: Arbeitszeit - ").append(MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH).append(" min\n")
|
||||
.append(" - ab ").append(MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH).append(" min + ").append(MIN_LUNCH_DURATION).append(" min: ")
|
||||
.append(MIN_LUNCH_DURATION).append(" min\n")
|
||||
.toString());
|
||||
}
|
||||
|
||||
|
||||
private static void showLoadingBarMittagspause(LocalTime startTime) {
|
||||
showLoadingBarMittagspause(startTime, null);
|
||||
}
|
||||
|
||||
|
||||
private static void showLoadingBarMittagspause(LocalTime startTime, LocalTime manualEndTime) {
|
||||
LocalTime endTime = manualEndTime != null ? manualEndTime : startTime.plusMinutes(DEFAULT_NUMBER_WORK_MINS_BEFORE_LUNCH);
|
||||
LocalTime trueEndTime = endTime.isAfter(LATEST_LUNCH_TIME) ? LATEST_LUNCH_TIME : endTime;
|
||||
showLoadingBar(startTime, trueEndTime);
|
||||
}
|
||||
|
||||
|
||||
private static void showLoadingBarZapfenstreich(LocalTime startTime, Integer manualLunchDuration) {
|
||||
showLoadingBarZapfenstreich(startTime, manualLunchDuration, 0);
|
||||
}
|
||||
|
||||
|
||||
private static void showLoadingBarZapfenstreich(LocalTime startTime, Integer manualLunchDuration, int endTimeOffset) {
|
||||
int minLunchDuration = getMinLunchDuration(startTime, endTimeOffset);
|
||||
int realLunchDuration = getRealLunchDuration(manualLunchDuration, minLunchDuration);
|
||||
LocalTime trueEndTime = startTime.plusMinutes(MAX_NUMBER_WORK_MINS + realLunchDuration + endTimeOffset);
|
||||
realShowLoadingBarZapfenstreich(startTime, realLunchDuration, trueEndTime);
|
||||
}
|
||||
|
||||
|
||||
private static void showLoadingBarZapfenstreich(LocalTime startTime, Integer manualLunchDuration, LocalTime manualEndTime) {
|
||||
LocalTime trueEndTime = manualEndTime;
|
||||
int minLunchDuration = getMinLunchDuration(startTime, trueEndTime);
|
||||
int realLunchDuration = getRealLunchDuration(manualLunchDuration, minLunchDuration);
|
||||
if (trueEndTime == null) {
|
||||
trueEndTime = startTime.plusMinutes(MAX_NUMBER_WORK_MINS + realLunchDuration);
|
||||
}
|
||||
realShowLoadingBarZapfenstreich(startTime, realLunchDuration, trueEndTime);
|
||||
}
|
||||
|
||||
|
||||
private static int getMinLunchDuration(LocalTime startTime, int endTimeOffset) {
|
||||
if (endTimeOffset == 0) {
|
||||
return MIN_LUNCH_DURATION;
|
||||
}
|
||||
int totalDuration = MAX_NUMBER_WORK_MINS + endTimeOffset;
|
||||
int effectiveLunchDuration = totalDuration - MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH;
|
||||
return getMinLunchDuration(effectiveLunchDuration);
|
||||
}
|
||||
|
||||
|
||||
private static int getMinLunchDuration(LocalTime startTime, LocalTime endTime) {
|
||||
if (endTime == null) {
|
||||
return MIN_LUNCH_DURATION;
|
||||
}
|
||||
long totalDuration = startTime.until(endTime, ChronoUnit.MINUTES);
|
||||
int effectiveLunchDuration = ((int) totalDuration) - MAX_NUMBER_WORK_MINS_WITHOUT_LUNCH;
|
||||
return getMinLunchDuration(effectiveLunchDuration);
|
||||
}
|
||||
|
||||
|
||||
private static int getMinLunchDuration(int effectiveLunchDuration) {
|
||||
if (effectiveLunchDuration < 0) {
|
||||
effectiveLunchDuration = 0;
|
||||
}
|
||||
return effectiveLunchDuration < MIN_LUNCH_DURATION ? effectiveLunchDuration : MIN_LUNCH_DURATION;
|
||||
}
|
||||
|
||||
|
||||
private static int getRealLunchDuration(Integer manualLunchDuration, int minLunchDuration) {
|
||||
return manualLunchDuration != null && manualLunchDuration >= minLunchDuration ? manualLunchDuration : minLunchDuration;
|
||||
}
|
||||
|
||||
|
||||
private static void realShowLoadingBarZapfenstreich(LocalTime startTime, int manualLunchDuration, LocalTime endTime) {
|
||||
if (manualLunchDuration > 0) {
|
||||
var totalWorkTime = LocalTime.MIDNIGHT.plusMinutes(startTime.until(endTime, ChronoUnit.MINUTES) - manualLunchDuration);
|
||||
System.out.print("Arbeitszeit: " + TIME_FORMATTER.format(totalWorkTime) + "; ");
|
||||
}
|
||||
showLoadingBar(startTime, endTime);
|
||||
}
|
||||
|
||||
|
||||
private static void showLoadingBar(LocalTime startTime, LocalTime endTime) {
|
||||
long initialMinutes = startTime.until(endTime, ChronoUnit.MINUTES);
|
||||
System.out.print(minutesToTimeString(initialMinutes) + " gesamt; Endzeit: " + TIME_FORMATTER.format(endTime) + "\n");
|
||||
long passedMinutes = startTime.until(LocalTime.now(), ChronoUnit.MINUTES);
|
||||
if (passedMinutes > initialMinutes) {
|
||||
passedMinutes = initialMinutes;
|
||||
} else if (passedMinutes < 0) {
|
||||
System.out.println(fillLoadingBar(initialMinutes, 0, false));
|
||||
return;
|
||||
}
|
||||
while (passedMinutes < initialMinutes) {
|
||||
System.out.print(fillLoadingBar(initialMinutes, passedMinutes, true));
|
||||
try {
|
||||
var now = LocalTime.now();
|
||||
var oneMinuteLater = now.plusMinutes(1).truncatedTo(ChronoUnit.MINUTES);
|
||||
// +1 second to adjust for ignored milliseconds as it is better to switch between 00 and 01 as between 59 and 00
|
||||
TimeUnit.SECONDS.sleep(now.until(oneMinuteLater, ChronoUnit.SECONDS) + 1);
|
||||
// TimeUnit.SECONDS.sleep(1L); // DEBUG
|
||||
} catch (InterruptedException ie) {
|
||||
throw new RuntimeException(ie);
|
||||
}
|
||||
passedMinutes++;
|
||||
}
|
||||
System.out.println(fillLoadingBar(initialMinutes, passedMinutes, false));
|
||||
}
|
||||
|
||||
|
||||
private static String fillLoadingBar(long initialMinutes, long passedMinutes, boolean progressive) {
|
||||
double wholePercentage = ((double) passedMinutes / initialMinutes) * 100;
|
||||
long remainingMinutes = initialMinutes - passedMinutes;
|
||||
int numberOfEquals = (int) wholePercentage;
|
||||
var sb = new StringBuilder("[");
|
||||
for (int i = 0; i < 100; i++) {
|
||||
if (i < numberOfEquals) {
|
||||
sb.append("=");
|
||||
} else {
|
||||
sb.append("-");
|
||||
}
|
||||
}
|
||||
sb.append("] ").append(PERCENTAGE_FORMAT.format(wholePercentage)).append("% ")
|
||||
.append(minutesToTimeString(passedMinutes)).append(" - ").append(minutesToTimeString(remainingMinutes));
|
||||
if (progressive) {
|
||||
sb.append("\r");
|
||||
}
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
|
||||
private static String minutesToTimeString(long minutes) {
|
||||
return LocalTime.of((int) minutes / 60, (int) minutes % 60).format(TIME_FORMATTER);
|
||||
}
|
||||
}
|
||||
147
SimpleLoadingBar.java
Normal file
147
SimpleLoadingBar.java
Normal file
@ -0,0 +1,147 @@
|
||||
import java.text.DecimalFormat;
|
||||
import java.time.LocalTime;
|
||||
import java.time.format.DateTimeFormatter;
|
||||
import java.time.temporal.ChronoUnit;
|
||||
import java.util.Objects;
|
||||
import java.util.concurrent.TimeUnit;
|
||||
import java.util.regex.Pattern;
|
||||
|
||||
class SimpleLoadingBar {
|
||||
|
||||
private static final String TIME_FORMAT = "HH:mm";
|
||||
private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern(TIME_FORMAT);
|
||||
private static final Pattern TIME_PATTERN = Pattern.compile("(?>[01][0-9]|2[0-4]):[0-5][0-9]");
|
||||
private static final DecimalFormat PERCENTAGE_FORMAT = new DecimalFormat("00.00");
|
||||
|
||||
|
||||
public static void main(String[] args) {
|
||||
if (args.length > 0 && Objects.equals(args[0], "--help")) {
|
||||
printHelp();
|
||||
return;
|
||||
}
|
||||
verifyMinimumNumberOfArgs(args);
|
||||
String nextArg = args[0];
|
||||
verifyTimeFormat(nextArg, "Erstes Argument"); // FSFIXME package
|
||||
var firstTime = LocalTime.parse(nextArg, TIME_FORMATTER); // FSFIXME package
|
||||
LocalTime startTime = null;
|
||||
String title = "";
|
||||
LocalTime endTime = null;
|
||||
if (args.length > 1) {
|
||||
startTime = firstTime;
|
||||
nextArg = args[1];
|
||||
if (nextArg.equals("-msg")) {
|
||||
title = args.length > 2 ? args[2] : title;
|
||||
} else {
|
||||
verifyTimeFormat(nextArg, "Zweites Argument");
|
||||
endTime = LocalTime.parse(nextArg, TIME_FORMATTER);
|
||||
}
|
||||
} else {
|
||||
startTime = LocalTime.now();
|
||||
endTime = firstTime;
|
||||
}
|
||||
String fallbackTitle = "Ende! Endzeit " + TIME_FORMATTER.format(endTime) + " erreicht.";
|
||||
if (args.length == 2 || !title.isBlank()) {
|
||||
title = title.isBlank() ? fallbackTitle : title;
|
||||
showLoadingBar(startTime, endTime, title);
|
||||
return;
|
||||
}
|
||||
// if there are 3 arguments, the third will be discarded.
|
||||
boolean hasTitleArg = args.length > 3 && args[2].equals("-msg");
|
||||
title = hasTitleArg ? args[3] : title;
|
||||
title = title.isBlank() ? fallbackTitle : title;
|
||||
showLoadingBar(startTime, endTime, title);
|
||||
}
|
||||
|
||||
|
||||
private static void printHelp() {
|
||||
System.out.println(new StringBuilder().append("Mögliche Argumente für LoadingBar:\n")
|
||||
.append("Startzeit, Endzeit, Endnachricht (Optional)\n")
|
||||
.append(TIME_FORMAT).append(" ").append(TIME_FORMAT).append("-msg <Nachricht>\n")
|
||||
.append("Endzeit (Startzeit = jetzt), Endnachricht (Optional)\n")
|
||||
.append(TIME_FORMAT).append("-msg <Nachricht>\n")
|
||||
);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyMinimumNumberOfArgs(String[] args) {
|
||||
if (args.length >= 1) {
|
||||
return;
|
||||
}
|
||||
System.out.println("Mindestens 1 Argument muss gegeben sein.");
|
||||
printHelp();
|
||||
System.exit(1);
|
||||
}
|
||||
|
||||
|
||||
private static void verifyTimeFormat(String param, String errMsgPrefix) {
|
||||
if (TIME_PATTERN.matcher(param).matches()) {
|
||||
return;
|
||||
}
|
||||
System.out.println(errMsgPrefix + " \"" + param + "\" muss Uhrzeitformat ("+ TIME_FORMAT + ") entsprechen.");
|
||||
System.exit(1);
|
||||
}
|
||||
|
||||
|
||||
|
||||
public static void showLoadingBar(LocalTime startTime, LocalTime endTime, String title) {
|
||||
long initialMinutes = startTime.until(endTime, ChronoUnit.MINUTES);
|
||||
System.out.print(minutesToTimeString(initialMinutes) + " gesamt; Endzeit: " + TIME_FORMATTER.format(endTime) + "\n");
|
||||
long passedMinutes = startTime.until(LocalTime.now(), ChronoUnit.MINUTES);
|
||||
if (passedMinutes > initialMinutes) {
|
||||
passedMinutes = initialMinutes;
|
||||
} else if (passedMinutes < 0) {
|
||||
System.out.println(fillLoadingBar(initialMinutes, 0, false));
|
||||
return;
|
||||
}
|
||||
while (passedMinutes < initialMinutes) {
|
||||
System.out.print(fillLoadingBar(initialMinutes, passedMinutes, true));
|
||||
try {
|
||||
var now = LocalTime.now();
|
||||
var oneMinuteLater = now.plusMinutes(1).truncatedTo(ChronoUnit.MINUTES);
|
||||
// +1 second to adjust for ignored milliseconds as it is better to switch between 00 and 01 as between 59 and 00
|
||||
TimeUnit.SECONDS.sleep(now.until(oneMinuteLater, ChronoUnit.SECONDS) + 1);
|
||||
// TimeUnit.SECONDS.sleep(1L); // DEBUG
|
||||
} catch (InterruptedException ie) {
|
||||
throw new RuntimeException(ie);
|
||||
}
|
||||
passedMinutes++;
|
||||
}
|
||||
System.out.println(fillLoadingBar(initialMinutes, passedMinutes, false));
|
||||
System.out.println(formatTitle(title));
|
||||
}
|
||||
|
||||
|
||||
private static String fillLoadingBar(long initialMinutes, long passedMinutes, boolean progressive) {
|
||||
double wholePercentage = ((double) passedMinutes / initialMinutes) * 100;
|
||||
long remainingMinutes = initialMinutes - passedMinutes;
|
||||
int numberOfEquals = (int) wholePercentage;
|
||||
var sb = new StringBuilder("[");
|
||||
for (int i = 0; i < 100; i++) {
|
||||
if (i < numberOfEquals) {
|
||||
sb.append("=");
|
||||
} else {
|
||||
sb.append("-");
|
||||
}
|
||||
}
|
||||
sb.append("] ").append(PERCENTAGE_FORMAT.format(wholePercentage)).append("% ")
|
||||
.append(minutesToTimeString(passedMinutes)).append(" - ").append(minutesToTimeString(remainingMinutes));
|
||||
if (progressive) {
|
||||
sb.append("\r");
|
||||
}
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
|
||||
private static String minutesToTimeString(long minutes) {
|
||||
return LocalTime.of((int) minutes / 60, (int) minutes % 60).format(TIME_FORMATTER);
|
||||
}
|
||||
|
||||
|
||||
private static String formatTitle(String title) {
|
||||
var sb = new StringBuilder();
|
||||
for (int i = 0; i < title.length(); i++) {
|
||||
sb.append("*");
|
||||
}
|
||||
return sb.toString() + "\n" + title + "\n" + sb.toString();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user