Java Process isAlive() Method

The isAlive() method is used to test whether the currently executing process is alive or not.

Syntax

Parameter

Return

The isAlive() method returns two value : true or false

The method returns true if the process executed by the process object is not terminated yet.
The method returns false if the process executed by the process object is terminated yet.

Example 1

public class Process_isAliveMethodExample1 {
        public static void main(String[] args) {   
  try{
           //A process is created. 
          System.out.println("A process is created:");
         Process p = Runtime.getRuntime().exec("mspaint.exe");
      //Waits for the process until you terminate.
        p.waitFor();
      //Tests whether the current process is alive or not.
       System.out.println(p.isAlive());
      //The process is closed manually.
     System.out.println("Manually closes the notepad.");
       //Finally the wait is over.
      System.out.println("Wait is completed.");
    }catch(Exception e)
     {
       System.out.println(e);
     }
  }}

Output:

A process is created:
false
Manually closes the notepad.
Wait is completed.

Example 2

public class Process_isAliveMethodExample2 {
         public static void main(String[] args) {
    try{
          // At first Notepad is opened.
          System.out.println("Notepad will open");
          Process p1=Runtime.getRuntime().exec("notepad.exe");
        // Waits for the process p1 to terminate.
         p1.waitFor();
      //Tests whether the process p1 is alive.
        System.out.println(p1.isAlive());
     //After that notepad is opened.
         System.out.println("Ms paint will open");
         Process p2=Runtime.getRuntime().exec("mspaint.exe");
    //Again waits for the process to terminate. 
         p2.waitFor();
  // Tests whether the process p2 is alive.
        System.out.println(p2.isAlive());
      }catch(Exception e)
    {
        System.out.println("Ohho! an exception has occurred: ");
    }
  }
} 

Output:

Notepad will open
false
Ms paint will open
False

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Java Process isAlive() Method

Syntax

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Example 1

Example 2

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Java Process isAlive() Method

Syntax

Parameter

Return

Example 1

Example 2

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