Java.lang.ThreadLocal.set() Method

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Description

The java.lang.ThreadLocal.set() method sets the current thread's copy of this thread-local variable to the specified value.

Declaration

Following is the declaration for java.lang.ThreadLocal.set() method

public void set(T value)

Parameters

value − This is the value to be stored in the current thread's copy of this thread-local.

Return Value

This method does not return any value.

Exception

NA

Example

The following example shows the usage of java.lang.ThreadLocal.set() method.

package com.tutorialspoint;

import java.lang.*;

public class ThreadLocalDemo {

   public static void main(String[] args) {

      ThreadLocal<Integer> tlocal = new ThreadLocal<Integer>();  

      /* sets the current thread's copy of this thread-local variable
      to the specified value. */

      tlocal.set(100);
      // returns the current thread's value of this thread-local
      System.out.println("value = " + tlocal.get());
 
      tlocal.set(0);
      // returns the current thread's value of this thread-local
      System.out.println("value = " + tlocal.get());
   }
} 

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

value = 100
value = 0