Java.lang.Process.exitValue() Method

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Description

The java.lang.Process.exitValue() method returns the exit value for the subprocess.

Declaration

Following is the declaration for java.lang.Process.exitValue() method

public abstract int exitValue()

Parameters

  • NA

Return Value

This method returns the exit value of the subprocess represented by this Process object. by convention, the value 0 indicates normal termination.

Exception

  • IllegalThreadStateException -- if the subprocess represented by this Process object has not yet terminated.

Example

The following example shows the usage of lang.Process.exitValue() method.

package com.tutorialspoint;

public class ProcessDemo {

   public static void main(String[] args) {
      try {
         // create a new process
         System.out.println("Creating Process...");
         Process p = Runtime.getRuntime().exec("notepad.exe");

         // destroy the process instantly to get a exit value
         p.destroy();

         // get the exit value of the new process
         System.out.println("" + p.exitValue());

      } catch (Exception ex) {
         ex.printStackTrace();
      }

   }
}

Let us compile and run the above program, this will produce the following result:

Creating Process...
1



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