From 70b86284a4c98b068e7119f906564929c262cbb9 Mon Sep 17 00:00:00 2001
From: fdai6040 <daniia.kudasheva@informatik.hs-fulda.de>
Date: Thu, 2 Feb 2023 09:42:42 +0100
Subject: [PATCH 1/3] Windows Probleme beim Erstellen von einer File, deshalb
 schlaegt Test fehl.

---
 src/main/java/src/TasksFrame.java | 63 +++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/src/main/java/src/TasksFrame.java b/src/main/java/src/TasksFrame.java
index 2fc7fb0..0ec3aa5 100644
--- a/src/main/java/src/TasksFrame.java
+++ b/src/main/java/src/TasksFrame.java
@@ -6,6 +6,7 @@ import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.util.ArrayList;
+import java.util.LinkedList;
 
 public class TasksFrame extends JFrame {
 
@@ -72,6 +73,68 @@ public class TasksFrame extends JFrame {
 
         setupLeibnizR(1000);
 
+        setupEulerschePhiFunk();
+
+    }
+
+    private void setupEulerschePhiFunk() {
+
+        JPanel jPanel = setupPanel("Eulersche Phi Funktion");
+
+        Button button = new Button("Calc Phi");
+        button.setVisible(true);
+        button.setBounds(120, 50, 100,  30);
+
+        JTextField jTextField = new JTextField();
+        jTextField.setVisible(true);
+        jTextField.setBounds( 10, 40,  60, 20);
+
+        JLabel jLabel = new JLabel();
+        jLabel.setVisible(true);
+        jLabel.setBounds(10, 90, 60, 30);
+
+
+        jPanel.add(button);
+        jPanel.add(jTextField);
+        jPanel.add(jLabel);
+
+        button.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                int r = ePhi(Integer.valueOf(jTextField.getText()));
+                jLabel.setText(String.valueOf(r));
+            }
+        });
+
+
+    }
+
+    private int ePhi(Integer n) {
+
+        LinkedList<Object> menge = new LinkedList<>();
+
+        for(int k =1; k<=n; k++){
+            if(ggt(k, n)== 1){
+                menge.add(k);
+            }
+        }
+        return menge.size();
+    }
+
+    private int ggt(int a, int b) {
+
+        int h;
+        if (a == 0) return 0;
+        if (b == 0) return 0;
+
+        do {
+            h = a % b;
+            a = b;
+            b = h;
+        } while (b != 0);
+
+        return a;
+
     }
 
     private void setupHelloWorld() {

From fc3d1c0e6c02b37ab59c60dd388a5172ea547fed Mon Sep 17 00:00:00 2001
From: fdai6040 <daniia.kudasheva@informatik.hs-fulda.de>
Date: Thu, 2 Feb 2023 10:02:28 +0100
Subject: [PATCH 2/3] Test ePhi-Funktion

---
 src/main/java/src/TasksFrame.java     |  4 ++--
 src/test/java/src/TasksFrameTest.java | 12 ++++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/main/java/src/TasksFrame.java b/src/main/java/src/TasksFrame.java
index 0ec3aa5..f3058a4 100644
--- a/src/main/java/src/TasksFrame.java
+++ b/src/main/java/src/TasksFrame.java
@@ -109,7 +109,7 @@ public class TasksFrame extends JFrame {
 
     }
 
-    private int ePhi(Integer n) {
+    public int ePhi(Integer n) {
 
         LinkedList<Object> menge = new LinkedList<>();
 
@@ -121,7 +121,7 @@ public class TasksFrame extends JFrame {
         return menge.size();
     }
 
-    private int ggt(int a, int b) {
+   public int ggt(int a, int b) {
 
         int h;
         if (a == 0) return 0;
diff --git a/src/test/java/src/TasksFrameTest.java b/src/test/java/src/TasksFrameTest.java
index ebe61ca..96efb8a 100644
--- a/src/test/java/src/TasksFrameTest.java
+++ b/src/test/java/src/TasksFrameTest.java
@@ -46,6 +46,18 @@ class TasksFrameTest {
         assertEquals(3,p3);
     }
 
+    @Test
+    void test_ePhi(){
+        TasksFrame tasksFrame = new TasksFrame();
+        int i = tasksFrame.ePhi( 10);
+        assertEquals(4, i);
+        int a = tasksFrame.ePhi(25);
+        assertEquals(20, a);
+        int b = tasksFrame.ePhi(15);
+        assertEquals(8, b);
+        int c = tasksFrame.ePhi(35);
+        assertEquals(24, c);
+    }
     }
 
 

From 9c965ca24db52daaf1e73a207b3d0e4240ec3f27 Mon Sep 17 00:00:00 2001
From: fdai6040 <daniia.kudasheva@informatik.hs-fulda.de>
Date: Thu, 2 Feb 2023 10:08:48 +0100
Subject: [PATCH 3/3] Test ggT-Funktion

---
 src/test/java/src/TasksFrameTest.java | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/test/java/src/TasksFrameTest.java b/src/test/java/src/TasksFrameTest.java
index 96efb8a..b9a277f 100644
--- a/src/test/java/src/TasksFrameTest.java
+++ b/src/test/java/src/TasksFrameTest.java
@@ -58,6 +58,17 @@ class TasksFrameTest {
         int c = tasksFrame.ePhi(35);
         assertEquals(24, c);
     }
+
+    @Test
+    void test_ggt(){
+        TasksFrame tasksFrame = new TasksFrame();
+        int ggt1 = tasksFrame.ggt(4, 20);
+        assertEquals(4, ggt1);
+        int ggt2 = tasksFrame.ggt(205, 120);
+        assertEquals(5, ggt2);
+        int ggt3 = tasksFrame.ggt(262, 599);
+        assertEquals(1, ggt3);
+    }
     }