diff --git a/src/FirstGUI.java b/src/FirstGUI.java
index 30dc3aa..03cd114 100644
--- a/src/FirstGUI.java
+++ b/src/FirstGUI.java
@@ -63,6 +63,6 @@
 //        jf.setSize(300,200);
         jf.pack();
         jf.setVisible(true);
-        jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
+        jf.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
     }
 }
diff --git a/src/SecondGUI.java b/src/SecondGUI.java
new file mode 100644
index 0000000..f6defc7
--- /dev/null
+++ b/src/SecondGUI.java
@@ -0,0 +1,23 @@
+import java.awt.FlowLayout;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+
+public class SecondGUI extends JFrame {
+    public static void main(String[] args){
+        new SecondGUI();
+    }
+    public SecondGUI(){
+        super("SecondGUI");
+
+        JButton jb = new JButton("Button");
+        getContentPane().setLayout(new FlowLayout());
+        getContentPane().add(jb);
+        // getContentPane().add(jb, BorderLayout.CENTER);
+        setSize(300,200);
+        setVisible(true);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+    }
+    
+}