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

Next TopicJava Process

← prev next →

Help Others, Please Share

Javatpoint Services

JavaTpoint offers too many high quality services. Mail us on [email protected], to get more information about given services.

Website Designing
Website Development
Java Development
PHP Development
WordPress
Graphic Designing
Logo
Digital Marketing
On Page and Off Page SEO
PPC
Content Development
Corporate Training
Classroom and Online Training
Data Entry

Training For College Campus

JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. Please mail your requirement at [email protected].
Duration: 1 week to 2 week

^{Like/Subscribe us for latest updates or newsletter}

Java Process class