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Java Thread Class final void setName(String thread_name) method with Example

Java Thread Class final void setName(String thread_name) method: Here, we are going to learn about the final void setName(String thread_name) method of Thread class with its syntax and example.
Submitted by Preeti Jain, on July 31, 2019

Thread Class final void setName(String thread_name)

  • This method is available in package java.lang.Thread.setName(String thread_name).
  • This method is used to sets the name of this thread.
  • This method is not static so this method is accessible with Thread class object it is not accessible with the class name.
  • This method is final so we can't override this method in our program.
  • The return type of this method is void so it does not return anything.
  • This method does not raise an exception if this thread can't modify.

Syntax:

    final void setName(String thread_name){
    }

Parameter(s):

We pass only one object as a parameter in the method of the Thread and the parameter is the new name of this thread.

Return value:

The return type of this method is String, it returns the name of this thread as a string.

Java program to demonstrate example of setName() method

/*  We will use Thread class methods so we are importing 
    the package but it is not mandate because 
    it is imported by default
*/

import java.lang.Thread;

class SetThreadName extends Thread {
    // Override run() of Thread class
    public void run() {
        System.out.println("The priority of this thread is : " + Thread.currentThread().getPriority());
    }

    public static void main(String[] args) {
        // Creating an object of SetThreadName class
        SetThreadName st_name = new SetThreadName();

        System.out.println("The old name of this thread is " + " " + st_name.getName());

        // We are setting the name of the thread SetThreadName
        st_name.setName("SetThreadName");

        /*  Calling start() method with SetThreadName class 
            object of Thread class
        */
        st_name.start();

        /*  By using getName() method to return the name of 
            this thread [SetThreadName ]
        */
        System.out.println("The new name of this thread is " + " " + st_name.getName());
    }
}

Output

E:\Programs>javac SetThreadName.java

E:\Programs>java SetThreadName
The old name of this thread is  Thread-0
The new name of this thread is  SetThreadName
The priority of this thread is : 5






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