Zahlenfelder Vers1. Objektorientiert
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moritz
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124
.idea/uiDesigner.xml
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124
.idea/uiDesigner.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<preferred-size width="150" height="-1" />
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<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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<preferred-size width="150" height="50" />
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<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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<preferred-size width="150" height="50" />
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<preferred-size width="200" height="200" />
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<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
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</item>
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</group>
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</component>
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</project>
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@ -4,8 +4,11 @@
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
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<sourceFolder url="file://$MODULE_DIR$/testTriangel01" isTestSource="true" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="library" name="junit.jupiter" level="application" />
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</component>
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</module>
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@ -23,6 +23,7 @@ public class Zahlenfilter {
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} catch (NumberFormatException e) {
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// Fehlermeldung, wenn das Argument keine gültige Zahl ist
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System.out.println("Fehler: Bitte eine gültige Zahl als Programmargument eingeben.");
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return; // Programm beenden
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}
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}
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56
src/praktikum02/TriangleChecker.java
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56
src/praktikum02/TriangleChecker.java
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package praktikum02;
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import java.util.Scanner;
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public class TriangleChecker {
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public enum TriangleType {
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NONE,
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NORMAL,
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ISOSCELES, // Gleichschenklig
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EQUILATERAL // Gleichseitig
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}
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public static void main(String[] args) {
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Scanner s = new Scanner(System.in);
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System.out.println("Geben Sie die Seitenlängen ein.");
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float a = enterFloat(s, "a: ");
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float b = enterFloat(s, "b: ");
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float c = enterFloat(s, "c: ");
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s.close();
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printAnalysis(a, b, c);
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}
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// Eingabe einer Seitenlänge
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private static float enterFloat(Scanner s, String prompt) {
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System.out.print(prompt);
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return s.nextFloat();
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}
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// Ausgabe der ermittelten Dreiecksart
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private static void printAnalysis(float a, float b, float c) {
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TriangleType type = checkTriangle(a, b, c);
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switch (type) {
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case NONE:
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System.out.println("Kein Dreieck");
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break;
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case NORMAL:
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System.out.println("Dreieck");
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break;
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case ISOSCELES:
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System.out.println("Gleichschenkliges Dreieck");
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break;
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case EQUILATERAL:
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System.out.println("Gleichseitiges Dreieck");
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break;
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}
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}
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// Analyse der Dreiecksart
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public static TriangleType checkTriangle(float a, float b, float c) {
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return TriangleType.NORMAL;
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}
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}
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63
src/praktikum02/Zahlenfilter02.java
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63
src/praktikum02/Zahlenfilter02.java
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package praktikum02;
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//Zahlenfilter
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public class Zahlenfilter02 {
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private int start;
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private int end;
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public Zahlenfilter02(int s, int e) {
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start = s;
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end = e;
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}
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public static void main(String[] args) {
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// Standardendwert ist 200, falls keine Argumente übergeben werden
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int end = 200;
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// Überprüfen, ob ein Programmargument übergeben wurde
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if (args.length > 0) {
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try {
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// Versuchen, das Argument in eine Zahl umzuwandeln
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end = Integer.parseInt(args[0]);
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} catch (NumberFormatException e) {
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// Fehlermeldung, wenn das Argument keine gültige Zahl ist
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System.out.println("Fehler: Bitte eine gültige Zahl als Programmargument eingeben.");
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}
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}
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Zahlenfilter02 zf = new Zahlenfilter02(1, end);
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zf.printNumbers();
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}
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private void printNumbers() {
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for (int i = 1; i <= end; i++) {
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if (filter(i))
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System.out.print(i + " ");
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}
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}
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public static boolean filter(int number) {
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return !(checkDivByFive(number) || checkEndsWithNine(number) || checkSumDivByThree(number));
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}
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public static boolean checkDivByFive(int number) {
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// Wenn durch 5 Teilbar
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return (number % 5 == 0);
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}
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public static boolean checkEndsWithNine(int number) {
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// Wenn Zahl auf 9 endet
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return (number % 10 == 9);
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}
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public static boolean checkSumDivByThree(int number) {
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int vorgaenger = number - 1;
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int summe = number + vorgaenger;
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// Überprüfen, ob die Summe durch 3 teilbar ist
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return (summe % 3 == 0);
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}
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}
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13
test/praktikum02/TriangleCheckerTest.java
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13
test/praktikum02/TriangleCheckerTest.java
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package praktikum02;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.*;
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class TriangleCheckerTest {
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@Test
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void checkTriangleNormal() {
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assertEquals(TriangleChecker.TriangleType.NORMAL,TriangleChecker.checkTriangle( 10 ,5,6) );
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}
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}
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30
test/praktikum02/Zahlenfilter02Test.java
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30
test/praktikum02/Zahlenfilter02Test.java
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package praktikum02;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.*;
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class Zahlenfilter02Test {
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@Test
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void filter() {
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}
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@Test
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void checkDivByFive() {
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assertTrue( Zahlenfilter02.checkDivByFive( 5 ) );
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assertFalse( Zahlenfilter02.checkDivByFive( 6 ) );
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}
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@Test
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void checkEndsWithNine() {
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assertTrue( Zahlenfilter02.checkEndsWithNine( 9 ) );
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assertFalse( Zahlenfilter02.checkEndsWithNine( 10 ) );
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}
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@Test
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void checkSumDivByThree() {
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assertTrue( Zahlenfilter02.checkSumDivByThree( 2 ) );
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assertFalse( Zahlenfilter02.checkSumDivByThree( 7 ) );
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}
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}
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