Source code to know how long a java application is running

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COMPLETE SOURCE CODE FOR : HowLongApplicationRunning.java
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public class HowLongApplicationRunning
{
public static void main(String[]args)
{
 long startTime=System.currentTimeMillis();

 try
 {
  //MAKE YOUR APPLICATION SLEEP IN 10 SECONDS
  Thread.sleep(10000);
 }
 catch(Exception exception)
 {
  exception.printStackTrace();
 }

 long endTime=System.currentTimeMillis();

 //GET DURATION IN SECOND
 long timeInSecond=(endTime-startTime)/1000;

 System.out.println("Duration For Your Application Running Is : "+timeInSecond+" seconds");
}
}

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JUST COMPILE AND EXECUTE IT
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Java source code to determine when application exit by print a line of text on command prompt

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COMPLETE SOURCE CODE FOR : DetermineWhenApplicationExit.java
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public class DetermineWhenApplicationExit
{
public static void main(String[]args)
{
 Runtime.getRuntime().addShutdownHook(new Thread()
 {
  public void run()
  {
   //Application will print "BYE" when it close
   System.out.println("BYE");
  }
 });

 //Make this application terminate
 System.exit(0);
}
}

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JUST COMPILE AND EXECUTE IT
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Java source code for application terminate (Exit application)

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COMPLETE SOURCE CODE FOR : ExitApplication.java
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public class ExitApplication
{
public static void main(String[]args)
{
 //System.exit(0) will make your application exit
 System.exit(0);
}
}

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JUST COMPILE AND EXECUTE IT
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Close application when click on JFrame close button

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COMPLETE SOURCE CODE FOR : ExitApplicationUsingJFrameCloseButton.java
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import javax.swing.JFrame;

public class ExitApplicationUsingJFrameCloseButton
{
 public static void main(String[]args)
 {
  JFrame a=new JFrame("EXIT AN APPLICATION USING JFRAME CLOSE BUTTON");
  
  //JFrame.EXIT_ON_CLOSE will make your application close when you hit JFrame close button
  a.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  a.setSize(200,200);
  a.setVisible(true);
 }
}

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JUST COMPILE AND EXECUTE IT
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