Java Thread getId() method

The getId() method is used to return the thread identifier. The thread ID is a unique positive number which was generated at the time of thread creation.

The thread ID remains unchanged during its lifetime. When the thread is terminated, the ID of thread can be reused.

Syntax

Return

Example

public class GetIdExample extends Thread
{  
    public void run()
    {  
        System.out.println("running...");  
    }  
    public static void main(String args[])
    {  
        // creating one thread
        GetIdExample t1=new GetIdExample();  
        // Returns the identifier of this Thread
        System.out.println("Name of t1: "+t1.getName());
        System.out.println("Id of t1: "+t1.getId()); 
        // Start the thread 
        t1.start();
    }  
} 

Test it Now

Output:

Name of t1: Thread-0
Id of t1: 21
running...

Next TopicMultithreading in Java

← prev next →

For Videos Join Our Youtube Channel: Join Now

Feedback

Send your Feedback to [email protected]

Help Others, Please Share

Learn Latest Tutorials

Splunk

SPSS

Swagger

Transact-SQL

Tumblr

ReactJS

Regex

Reinforcement Learning

R Programming

RxJS

React Native

Python Design Patterns

Python Pillow

Python Turtle

Keras

Preparation

Aptitude

Reasoning

Verbal Ability

Interview Questions

Company Questions

Trending Technologies

Artificial Intelligence

AWS

Selenium

Cloud Computing

Hadoop

ReactJS

Data Science

Angular 7

Blockchain

Git

Machine Learning

DevOps

B.Tech / MCA

DBMS

Data Structures

DAA

Operating System

Computer Network

Compiler Design

Computer Organization

Discrete Mathematics

Ethical Hacking

Computer Graphics

Software Engineering

Web Technology

Cyber Security

Automata

C Programming

C++

Java

.Net

Python

Programs

Control System

Data Mining

Data Warehouse

^{Like/Subscribe us for latest updates or newsletter}

Java Tutorial

Control Statements

Java Object Class

Java Inheritance

Java Polymorphism

Java Abstraction

Java Encapsulation

Java Array

Java OOPs Misc