diff --git a/src/FirstGUI.java b/src/FirstGUI.java
index a584601..30dc3aa 100644
--- a/src/FirstGUI.java
+++ b/src/FirstGUI.java
@@ -6,7 +6,8 @@
 import javax.swing.JFrame;
 import javax.swing.JOptionPane;
 
-class MyJButton extends JButton implements ActionListener {
+class MyJButton extends JButton implements ActionListener , Runnable {
+    Thread thread;
     public MyJButton(String label){
         super(label);
     }
@@ -15,9 +16,31 @@
     }
     @Override
     public void actionPerformed(ActionEvent e) {
+        if (thread == null){
+            thread = new Thread(this);
+            thread.start();
+        } else {
+            thread = null;
+        }
         FirstGUI.jf.pack();
         System.out.println(e.getActionCommand());
     }
+    int num = 0;
+    @Override
+    public void run() {
+        while(thread != null){
+            num++;
+            setText("Second: "+num);
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}
+class MyThread extends Thread {
+
 }
 
 public class FirstGUI {