diff --git a/test/GUItest/src/frameTest/Main.java b/test/GUItest/src/frameTest/Main.java
index 62f03ff..d4fbe64 100644
--- a/test/GUItest/src/frameTest/Main.java
+++ b/test/GUItest/src/frameTest/Main.java
@@ -1,6 +1,8 @@
 package frameTest;
 
 import java.awt.*;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
 
 public class Main {
     public static void main(String[] args) {
@@ -20,6 +22,13 @@ public class Main {
         frame.setLocation(200, 200);
         // 6.set frame can't be resized
         frame.setResizable(false);
+        // 7.add a listener to close frame R
+        frame.addWindowListener(new WindowAdapter() {
+            @Override
+            public void windowClosing(WindowEvent e) {
+                System.exit(0);
+            }
+        });
     }
 
 }
\ No newline at end of file
diff --git a/test/GUItest/src/testLayout/Main.java b/test/GUItest/src/testLayout/Main.java
new file mode 100644
index 0000000..e83066d
--- /dev/null
+++ b/test/GUItest/src/testLayout/Main.java
@@ -0,0 +1,49 @@
+package testLayout;
+
+import java.awt.*;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+
+public class Main {
+    public static void main(String[] args) {
+        Frame frame = new Frame();
+        frame.setVisible(true);
+        frame.setSize(680, 400);
+        frame.addWindowListener(new WindowAdapter() {
+            @Override
+            public void windowClosing(WindowEvent e) {
+                // TODO Auto-generated method stub
+                System.exit(0);
+            }
+        });
+        frame.setLayout(new GridLayout(2, 1));
+        Button Btn1 = new Button("Button");
+        Button Btn2 = new Button("Button");
+        Button Btn3 = new Button("Button");
+        Button Btn4 = new Button("Button");
+        Button Btn5 = new Button("Button");
+        Button Btn6 = new Button("Button");
+        Button Btn7 = new Button("Button");
+        Button Btn8 = new Button("Button");
+        Button Btn9 = new Button("Button");
+        Button Btn10 = new Button("Button");
+        Panel Upper = new Panel(new BorderLayout());
+        Panel uCenter = new Panel(new GridLayout(2, 1));
+        Upper.add(Btn1, BorderLayout.WEST);
+        uCenter.add(Btn2);
+        uCenter.add(Btn3);
+        Upper.add(uCenter, BorderLayout.CENTER);
+        Upper.add(Btn4, BorderLayout.EAST);
+        frame.add(Upper);
+        Panel Lower = new Panel(new BorderLayout());
+        Lower.add(Btn5, BorderLayout.WEST);
+        Panel lCenter = new Panel(new GridLayout(2, 2));
+        lCenter.add(Btn6);
+        lCenter.add(Btn7);
+        lCenter.add(Btn8);
+        lCenter.add(Btn9);
+        Lower.add(lCenter);
+        Lower.add(Btn10, BorderLayout.EAST);
+        frame.add(Lower);
+    }
+}
\ No newline at end of file
diff --git a/test/GUItest/src/testPanel/Main.java b/test/GUItest/src/testPanel/Main.java
new file mode 100644
index 0000000..3284749
--- /dev/null
+++ b/test/GUItest/src/testPanel/Main.java
@@ -0,0 +1,25 @@
+package testPanel;
+
+import java.awt.*;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+
+public class Main {
+    public static void main(String[] args) {
+        Frame frame = new Frame();
+        frame.setLayout(null);
+        frame.setVisible(true);
+        frame.setBackground(new Color(0X39, 0XC5, 0XBB));
+        frame.setBounds(100, 100, 600, 400);
+        frame.addWindowListener(new WindowAdapter() {
+            @Override
+            public void windowClosing(WindowEvent e) {
+                System.exit(0);
+            }
+        });
+        Panel panel = new Panel(null);
+        panel.setBounds(0, 0, frame.getWidth() / 2, frame.getHeight());
+        panel.setBackground(new Color(0XFF, 0XA5, 0X00));
+        frame.add(panel);
+    }
+}