🎓 Top 15 Udemy Courses (80-90% Discount): My Udemy Courses - Ramesh Fadatare — All my Udemy courses are real-time and project oriented courses.
▶️ Subscribe to My YouTube Channel (178K+ subscribers): Java Guides on YouTube
▶️ For AI, ChatGPT, Web, Tech, and Generative AI, subscribe to another channel: Ramesh Fadatare on YouTube
In this guide, you will learn about the Thread join() method in Java programming and how to use it with an example.
1. Thread join() Method Overview
Definition:
The Java Thread join() method allows one thread to wait for the completion of another.Syntax:
1) public final void join() throws InterruptedException
2) public final void join(long millis) throws InterruptedException
3) public final void join(long millis, int nanos) throws InterruptedException
Parameters:
- millis: The maximum time to wait in milliseconds.
- nanos: Additional nanoseconds to wait, ranging from 0 to 999999.
Key Points:
- The join() method allows one thread to wait for the completion of another.
- If any thread interrupts the current thread, it throws an InterruptedException.
- Overloaded join() methods with the time specified will make the current thread wait at most that amount of time for the referenced thread to complete.
- If the time is exceeded, the current thread will continue its execution.
2. Thread join() Method Example
public class ThreadJoinExample {
public static void main(String[] args) {
// Create a new thread
Thread newThread = new Thread(() -> {
for(int i = 0; i < 5; i++) {
System.out.println("Inside new thread");
try {
// Sleep for 1 second
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
// Start the new thread
newThread.start();
try {
// Wait for newThread to complete
newThread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("New thread has completed, resuming main thread");
}
}
Output:
Inside new thread Inside new thread Inside new thread Inside new thread Inside new thread New thread has completed, resuming main thread
Explanation:
In the provided example, we create a new thread (newThread) that prints "Inside new thread" 5 times and then sleeps for 1 second after each print.
The main thread starts newThread and immediately invokes the join() method on newThread, pausing the main thread's execution until newThread has completed.
After newThread completes its execution, the main thread resumes and prints "New thread has completed, resuming main thread".
My Top and Bestseller Udemy Courses. The sale is going on with a 70 - 80% discount. The discount coupon has been added to each course below:
Build REST APIs with Spring Boot 4, Spring Security 7, and JWT
![[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25](https://img-c.udemycdn.com/course/750x422/6852721_b512_2.jpg "[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25")
[NEW] Learn Apache Maven with IntelliJ IDEA and Java 25
ChatGPT + Generative AI + Prompt Engineering for Beginners
Spring 7 and Spring Boot 4 for Beginners (Includes 8 Projects)
Available in Udemy for Business
Building Real-Time REST APIs with Spring Boot - Blog App
Available in Udemy for Business
Building Microservices with Spring Boot and Spring Cloud
Available in Udemy for Business
Java Full-Stack Developer Course with Spring Boot and React JS
Available in Udemy for Business
Build 5 Spring Boot Projects with Java: Line-by-Line Coding
Testing Spring Boot Application with JUnit and Mockito
Available in Udemy for Business
Spring Boot Thymeleaf Real-Time Web Application - Blog App
Available in Udemy for Business
Master Spring Data JPA with Hibernate
Available in Udemy for Business
Spring Boot + Apache Kafka Course - The Practical Guide
Available in Udemy for Business
Comments
Post a Comment
Leave Comment