Home Java

Naming a thread and current thread in Java

Threading is a lightweight process. Thread creates and exists in the process with fewer resources; thread shares process resources. The main thread of Java is the thread that is launched when the program is launched.

There are two ways to set the name, either directly or indirectly, which we will be peeking through.

Creating the thread and passing its name (Direct method)
Using the Thread class's setName() method (Indirect Method)

Example of Creating the thread and passing its name (Direct method) in Java

In Java, threads can be named using a direct method. Without providing names, threads automatically receive default names like Thread-0, Thread-1, Thread-2, and so forth. However, Java provides a couple of techniques to modify the thread name. These techniques are available in the java.lang package, specifically in the thread class.Java enables us to set the thread name at the time of thread creation rather than passing it as an argument.

import java.io.*;
class ThreadName extends Thread {
	ThreadName(String name){
        super(name); // call to constructor of thread class as super keyword of parent class
    }
    @Override 
    public void run(){
        System.out.println("Thread is running");
    }
}
public class Main { 
	public static void main(String args[]){
		ThreadName threadName1 = new ThreadName("I Love India");
		ThreadName threadName2 = new ThreadName("India is Great");
        System.out.println("Thread one: " + threadName1.getName());
        System.out.println("Thread two: " + threadName2.getName()); 
        threadName1.start();
        threadName2.start();
   }
}

Output:

Thread one: I Love India
Thread two: India is Great
Thread is running
Thread is running

Example of Creating the thread using the Thread class's setName() method (Indirect Method) in Java

By using the setName method on that thread object, we can set (modify) the thread's name. It will alter a thread's name.

import java.io.*;
class ThreadName extends Thread {
    @Override 
    public void run(){
        System.out.println("Thread is running");
    }
}
public class Main { 
	public static void main(String args[]){
		ThreadName threadName1 = new ThreadName();
		ThreadName threadName2 = new ThreadName();
        System.out.println("Thread one: " + threadName1.getName());
        System.out.println("Thread two: " + threadName2.getName()); 
        threadName1.start();
        threadName2.start();

        threadName1.setName("I Love India");
        threadName2.setName("India is Great");

        System.out.println("Changed name of thread : ");

        System.out.println("New Name of Thread 1 :  "+ threadName1.getName());
        System.out.println("New Name of Thread 2 : "+ threadName2.getName());
   }
}

Output:

Thread one: Thread-0
Thread two: Thread-1
Changed name of thread : 
New Name of Thread 1 :  I Love India
New Name of Thread 2 : India is Great
Thread is running
Thread is running

Example of How to fetch the name of the current thread in Java

import java.io.*;
class ThreadName extends Thread {
    @Override 
    public void run(){
        System.out.println(Thread.currentThread().getName());
    }
}
public class Main { 
   public static void main(String args[]){
    ThreadName threadName1 = new ThreadName();
    ThreadName threadName2 = new ThreadName();
    threadName1.start();
    threadName2.start();
    threadName1.setName("I Love India");
    threadName2.setName("India is Great");
   }
}

Output:

I Love India
India is Great

Thread Priority in java Next »

« Perv Next »

Naming a thread and current thread in Java

Example of Creating the thread and passing its name (Direct method) in Java

Example of Creating the thread using the Thread class's setName() method (Indirect Method) in Java

Example of How to fetch the name of the current thread in Java

Post your comment

Useful Links

Contact Us

About DockerTpoint