inital commit

src/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Main-Class: tech.loedige.Main
+

src/tech/loedige/Main.java

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+package tech.loedige;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.*;
+
+public class Main {
+
+    public static void main(String[] args) {
+	// write your code here
+        char[][] code = generateCode();
+        outputCodeToConsole(code);
+        outputCodeToScreen(code);
+    }
+
+    private static void outputCodeToScreen(char[][] code) {
+        JFrame frame = new JFrame();
+        Container container = frame.getContentPane();
+
+        for(int i = 0; i<code[0].length;i++){
+            container.add(new JLabel((code[0][i]+" >> " + code[1][i])));
+        }
+
+        JButton rerunButton = new JButton("Neue Verschlüsselung");
+        rerunButton.addActionListener(new ActionListener(){
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                frame.dispose();
+                outputCodeToScreen(generateCode());
+            }
+        });
+        container.add(rerunButton);
+
+        frame.setLayout(new BoxLayout(container, BoxLayout.PAGE_AXIS));
+        frame.pack();
+        GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
+        Point centerPoint = graphicsEnvironment.getCenterPoint();
+        frame.setLocation(centerPoint.x/4, centerPoint.y/4);
+        frame.setVisible(true);
+    }
+
+    public static char[][] generateCode(){
+        char[][] code = new char[2][26];
+        code[0] = new char[]{'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
+        code[1] = new char[]{'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
+        Random rand = new Random();
+
+        for (int i = 0; i < code[1].length; i++) {
+            int randomIndexToSwap = rand.nextInt(code[1].length);
+            char temp = code[1][randomIndexToSwap];
+            code[1][randomIndexToSwap] = code[1][i];
+            code[1][i] = temp;
+        }
+        return code;
+    }
+
+    public static void outputCodeToConsole(char[][] code){
+        for(int r=0; r<code[0].length;r++){
+           System.out.println(code[0][r] + "\t->\t"+code[1][r]);
+        }
+    }
+}