Fakultaet Rechner

src/main/java/src/TasksFrame.java

@@ -75,6 +75,8 @@ public class TasksFrame extends JFrame {
 
         setupArea();
 
+        setupFakultaet();
+
         setupSumFromTo();
 
         setup5ModList(1, 20);
@@ -655,6 +657,55 @@ public class TasksFrame extends JFrame {
         return a-b;
     }
 
+    public int Fakultaet(int a){
+        int sum = 0;
+        int faku=1;
+        while ( sum <a ) {
+            sum = sum + 1 ;
+            faku = faku * sum ;
+        }
+        if(sum == 0){
+            faku = 0;
+        }
+        return faku;
+    }
+
+    private void setupFakultaet()
+    {
+        JPanel jPanel = setupPanel("Berechnen Sie die Fakultaet einer Zahl:");
+
+        JTextField a = new JTextField();
+        a.setVisible(true);
+        a.setBounds(50,25,35,30);
+        a.setFont(new java.awt.Font("Arial", Font.BOLD, 12));
+
+        JButton faku = new JButton("Calculate Fakultaet");
+        faku.setVisible(true);
+        faku.setBounds(0, 60, 180,30);
+        faku.setBackground(Color.BLUE);
+
+        JTextField res = new JTextField();
+        res.setVisible(true);
+        res.setBounds(50,100,35,30);
+        res.setFont(new java.awt.Font("Arial", Font.BOLD, 12));
+
+        faku.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                String texta = a.getText();
+                Integer val_a = Integer.valueOf(texta);
+                Integer res1 = Fakultaet(val_a);
+                res.setText(String.valueOf(res1));
+            }
+        });
+
+        jPanel.add(a);
+        jPanel.add(faku);
+        jPanel.add(res);
+
+    }
+
+
     public void setupArea()
     {
         JPanel jPanel = setupPanel("Area and perimeter of a Rectangle:");
@@ -800,20 +851,6 @@ public class TasksFrame extends JFrame {
     return sum+to;
     }
 
-    public int Fakultaet(int a){
-        int sum = 0;
-        int faku=1;
-        while ( sum <a ) {
-            sum = sum + 1 ;
-            faku = faku * sum ;
-        }
-        if(sum == 0){
-            faku = 0;
-        }
-        return faku;
-    }
-
-
 
     private ArrayList<Integer> setup5ModList(int from, int to) {