Hello, Java developers!
Today, we’re going to explore the concept of Multithreading and Concurrency in Java. Multithreading is a Java feature that allows concurrent execution of two or more parts of a program for maximum utilization of CPU.
Java provides built-in support for multithreaded programming. The primary ways to create a thread in Java are by implementing the Runnable interface or extending the Thread class.
1. Thread Class
You can create a thread by extending the Thread class and overriding its run() method.
Example:
java
Copy code
class MyThread extends Thread {
public void run() {
System.out.println("This code is running in a thread");
}
}
public class Main {
public static void main(String[] args) {
MyThread t = new MyThread();
t.start(); // Start the thread
}
}
2. Runnable Interface
Alternatively, you can implement the Runnable interface and pass an instance of your class to a Thread object.
Example:
java
Copy code
class MyRunnable implements Runnable {
public void run() {
System.out.println("This code is running in a thread");
}
}
public class Main {
public static void main(String[] args) {
MyRunnable myRunnable = new MyRunnable();
Thread thread = new Thread(myRunnable);
thread.start(); // Start the thread
}
}
Exercise: Create a Simple Multithreading Application
Now, it’s your turn to practice. Create a Java application that:
Uses two threads to print odd and even numbers, respectively.The odd-number thread prints odd numbers from 1 to 10.The even-number thread prints even numbers from 1 to 10.Conclusion
Congratulations! You’ve just stepped into the world of multithreading in Java. Multithreading is a powerful feature for improving the performance of your Java applications, especially in scenarios that involve long-running operations or tasks that can be executed in parallel.
Experiment with creating and managing multiple threads. This will help you understand how to handle concurrent tasks in your Java applications.
Happy coding, and enjoy the parallel world of Java multithreading!