Zahlenfelder Vers1. Objektorientiert

2024-10-29 15:55:42 +01:00 · 2024-10-29 15:14:36 +01:00 · 2024-10-15 16:52:46 +02:00 · 2024-10-15 16:48:48 +02:00
7 changed files with 385 additions and 3 deletions
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
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+        <initial-values>
+          <property name="text" value="RadioButton" />
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+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
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+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
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+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
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+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
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+      </item>
+    </group>
+  </component>
+</project>
@@ -4,8 +4,11 @@
    <exclude-output />
    <content url="file://$MODULE_DIR$">
      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/testTriangel01" isTestSource="true" />
    </content>
    <orderEntry type="inheritedJdk" />
    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="junit.jupiter" level="application" />
  </component>
 </module>
@@ -12,12 +12,27 @@ public class Zahlenfilter {
        end = e;
    }
    public static void main(String[] args) {
-        Zahlenfilter zf = new Zahlenfilter (1, 200);
+        // Standardendwert ist 200, falls keine Argumente übergeben werden
+        int end = 200;
+
+        // Überprüfen, ob ein Programmargument übergeben wurde
+        if (args.length > 0) {
+            try {
+                // Versuchen, das Argument in eine Zahl umzuwandeln
+                end = Integer.parseInt(args[0]);
+            } catch (NumberFormatException e) {
+                // Fehlermeldung, wenn das Argument keine gültige Zahl ist
+                System.out.println("Fehler: Bitte eine gültige Zahl als Programmargument eingeben.");
+                return; // Programm beenden
+            }
+        }
+
+        Zahlenfilter zf = new Zahlenfilter (1, end);
        zf.countUp();
    }

    private void countUp(){
-        for (int i = 1; i < 201; i++) {
+        for (int i = 1; i <= end; i++) {
            checkDivByFive(i);
            checkEndsWithNine(i);
            checkSumDivByThree(i);
@@ -44,7 +59,7 @@ public class Zahlenfilter {

        // Überprüfen, ob die Summe durch 3 teilbar ist
        if (summe % 3 == 0) {
-            System.out.println(number + " und " + vorgaenger + " addiert ergeben " + summe + " und " + summe + " ist durch 3 teilbar.");
+            System.out.println(number + " und " + vorgaenger + " addiert ergeben " + summe + "; " +"ist durch 3 teilbar.");
        }
    }
 }
@@ -0,0 +1,69 @@
+package praktikum02;
+
+import java.util.Scanner;
+
+public class TriangleChecker {
+
+    public enum TriangleType {
+        NONE,
+        NORMAL,
+        ISOSCELES,  // Gleichschenklig
+        EQUILATERAL // Gleichseitig
+    }
+
+
+    public static void main(String[] args) {
+        Scanner s = new Scanner(System.in);
+        System.out.println("Geben Sie die Seitenlängen ein.");
+        float a = enterFloat(s, "a: ");
+        float b = enterFloat(s, "b: ");
+        float c = enterFloat(s, "c: ");
+        s.close();
+        printAnalysis(a, b, c);
+    }
+
+    // Eingabe einer Seitenlänge
+    private static float enterFloat(Scanner s, String prompt) {
+        System.out.print(prompt);
+        return s.nextFloat();
+    }
+
+    // Ausgabe der ermittelten Dreiecksart
+    private static void printAnalysis(float a, float b, float c) {
+        TriangleType type = checkTriangle(a, b, c);
+        switch (type) {
+            case NONE:
+                System.out.println("Kein Dreieck");
+                break;
+            case NORMAL:
+                System.out.println("normales Dreieck");
+                break;
+            case ISOSCELES:
+                System.out.println("Gleichschenkliges Dreieck");
+                break;
+            case EQUILATERAL:
+                System.out.println("Gleichseitiges Dreieck");
+                break;
+        }
+    }
+
+    // Analyse der Dreiecksart
+    public static TriangleType checkTriangle(float a, float b, float c) {
+
+        if (a == b && b == c && a == c){return TriangleType.EQUILATERAL;}
+
+        if (a == b || b == c || a == c){return TriangleType.ISOSCELES;}
+
+        if (a <= 0 || b <= 0 || c <= 0){return TriangleType.NONE;}
+
+        if (a + b < c){return TriangleType.NONE;}
+
+        if (a + c < b){return TriangleType.NONE;}
+
+        if (b + c < a){return TriangleType.NONE;}
+
+
+        return TriangleType.NORMAL;
+    }
+
+    }
@@ -0,0 +1,63 @@
+package praktikum02;
+
+//Zahlenfilter
+public class Zahlenfilter02 {
+
+    private int start;
+
+    private int end;
+
+    public Zahlenfilter02(int s, int e) {
+        start = s;
+        end = e;
+    }
+
+    public static void main(String[] args) {
+        // Standardendwert ist 200, falls keine Argumente übergeben werden
+        int end = 200;
+
+        // Überprüfen, ob ein Programmargument übergeben wurde
+        if (args.length > 0) {
+            try {
+                // Versuchen, das Argument in eine Zahl umzuwandeln
+                end = Integer.parseInt(args[0]);
+            } catch (NumberFormatException e) {
+                // Fehlermeldung, wenn das Argument keine gültige Zahl ist
+                System.out.println("Fehler: Bitte eine gültige Zahl als Programmargument eingeben.");
+            }
+        }
+
+        Zahlenfilter02 zf = new Zahlenfilter02(1, end);
+        zf.printNumbers();
+    }
+
+   private void printNumbers() {
+       for (int i = 1; i <= end; i++) {
+           if (filter(i))
+               System.out.print(i + " ");
+       }
+   }
+
+    public static boolean filter(int number) {
+        return !(checkDivByFive(number) || checkEndsWithNine(number) || checkSumDivByThree(number));
+    }
+
+    public static boolean checkDivByFive(int number) {
+        // Wenn durch 5 Teilbar
+        return (number % 5 == 0);
+    }
+
+    public static boolean checkEndsWithNine(int number) {
+        // Wenn Zahl auf 9 endet
+        return (number % 10 == 9);
+    }
+
+    public static boolean checkSumDivByThree(int number) {
+        int vorgaenger = number - 1;
+        int summe = number + vorgaenger;
+
+
+        // Überprüfen, ob die Summe durch 3 teilbar ist
+        return (summe % 3 == 0);
+    }
+}
@@ -0,0 +1,78 @@
+package praktikum02;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class TriangleCheckerTest {
+
+    @Test
+    void checkTriangleNormal() {
+        assertEquals(TriangleChecker.TriangleType.NORMAL,TriangleChecker.checkTriangle( 10 ,5,6) );
+    }
+
+    @Test
+    void checkTriangleISOSCELES_AB() {
+        assertEquals(TriangleChecker.TriangleType.ISOSCELES,TriangleChecker.checkTriangle( 10 ,10,5) );
+    }
+
+    @Test
+    void checkTriangleISOSCELES_BC() {
+        assertEquals(TriangleChecker.TriangleType.ISOSCELES,TriangleChecker.checkTriangle( 10 ,5,5) );
+    }
+
+    @Test
+    void checkTriangleISOSCELES_AC() {
+        assertEquals(TriangleChecker.TriangleType.ISOSCELES,TriangleChecker.checkTriangle( 10 ,5,10) );
+    }
+
+    @Test
+    void checkTriangle_EQUILATERAL() {
+        assertEquals(TriangleChecker.TriangleType.EQUILATERAL,TriangleChecker.checkTriangle( 10 ,10,10) );
+    }
+
+    @Test
+    void checkTriangleNONE_A() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 0 ,10,5) );
+    }
+
+    @Test
+    void checkTriangleNONE_B() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 10 ,0,5) );
+    }
+
+    @Test
+    void checkTriangleNONE_C() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 10 ,5,0) );
+    }
+
+    @Test
+    void checkTriangleNONE_minusA() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( -2 ,10,5) );
+    }
+
+    @Test
+    void checkTriangleNONE_minusB() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 10 ,-2,5) );
+    }
+
+    @Test
+    void checkTriangleNONE_minusC() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 10 ,5,-2) );
+    }
+
+    @Test
+    void checkTriangleNONE_AB_C() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 10 ,2,13) );
+    }
+
+    @Test
+    void checkTriangleNONE_AC_B() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 10 ,13,2) );
+    }
+
+    @Test
+    void checkTriangleNONE_BC_A() {
+        assertEquals(TriangleChecker.TriangleType.NONE,TriangleChecker.checkTriangle( 13 ,10,2) );
+    }
+}
@@ -0,0 +1,30 @@
+package praktikum02;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class Zahlenfilter02Test {
+
+    @Test
+    void filter() {
+    }
+
+    @Test
+    void checkDivByFive() {
+        assertTrue( Zahlenfilter02.checkDivByFive( 5 ) );
+        assertFalse( Zahlenfilter02.checkDivByFive( 6 ) );
+    }
+
+    @Test
+    void checkEndsWithNine() {
+        assertTrue( Zahlenfilter02.checkEndsWithNine( 9 ) );
+        assertFalse( Zahlenfilter02.checkEndsWithNine( 10 ) );
+    }
+
+    @Test
+    void checkSumDivByThree() {
+        assertTrue( Zahlenfilter02.checkSumDivByThree( 2 ) );
+        assertFalse( Zahlenfilter02.checkSumDivByThree( 7 ) );
+    }
+}
Author	SHA1	Message	Date
moritz	ae803b20ea	Zahlenfelder Vers1. Objektorientiert	2024-10-29 15:55:42 +01:00
moritz	6b11baff87	Zahlenfelder Vers1. Objektorientiert	2024-10-29 15:14:36 +01:00
moritz	e83ec8105e	Zahlenfelder Vers1. Objektorientiert	2024-10-15 16:52:46 +02:00
moritz	ecee66decf	Zahlenfelder Vers1. Objektorientiert	2024-10-15 16:48:48 +02:00