Java.lang.Thread.setName() Method

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Description

The java.lang.Thread.setName() method changes the name of this thread to be equal to the argument name.

Declaration

Following is the declaration for java.lang.Thread.setName() method

public final void setName(String name)

Parameters

  • name -- This is the new name for this thread

Return Value

This method does not return any value.

Exception

  • SecurityException -- if the current thread cannot modify this thread.

Example

The following example shows the usage of java.lang.Thread.setName() method.

package com.tutorialspoint;

import java.lang.*;

public class ThreadDemo {

   public static void main(String[] args) {

     Thread t = Thread.currentThread();
     // prints the thread name
     System.out.println("Thread = " + t);
    
     // change the thread name
     t.setName("Admin Thread");
     
     // prints the thread after changing name
     System.out.println("Thread after changing name = " + t);
    
     int count = Thread.activeCount();
     System.out.println("currently active threads = " + count);
   }
} 

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

Thread = Thread[main,5,main]
Thread after changing name = Thread[Admin Thread,5,main]
currently active threads = 1



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