How to create a thread in Java without implementing Runnable interface?

Threads can be called lightweight processes. Java supports multithreading, so it allows our application to perform two or more tasks simultaneously. All Java programs have at least one thread, called the main thread, which is created by the Java Virtual Machine (JVM) when the program starts. () The method is called in the main thread. There are two ways to create a thread in Java, one is extend the Thread class, and the other isimplement the Runnable interface.

We can also create a program in the following withoutimplementationRunnableinterface

Example

public class CreateThreadWithoutImplementRunnable { <strong>//</strong>
without implements Runnable
   public static void main(String[] args) {
      new Thread(new Runnable() {
         public void run() {
            for (int i=0; i <= 5; i++) {
               System.out.println("run() method of Runnable interface: "+ i);
            }
         }
      }).start();
      for (int j=0; j <= 5; j++) {
         System.out.println("main() method: "+ j);
      }
   }
}

Output

main() method: 0
run() method of Runnable interface: 0
main() method: 1
run() method of Runnable interface: 1
main() method: 2
run() method of Runnable interface: 2
main() method: 3
run() method of Runnable interface: 3
main() method: 4
run() method of Runnable interface: 4
main() method: 5
run() method of Runnable interface: 5

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