Java Program to show Runnable Interface implementation – Q26
Q26: Java Program to create thdemo class which implements Runnable Interface. Main thread prints numbers from 1 to 10 and child thread prints from 1 to 5.
A Runnable Interface should be implemented by any class whose instances are intended to be executed by a Thread. The class must define a method of no arguments called run.
class NewThread implements Runnable{ Thread t; NewThread(){ t = new Thread(this, "Demo Thread"); System.out.println("Child thread: " + this); t.start(); } public void run(){ try{ for(int i=1; i<=5; i++){ System.out.println("Child Thread: " + i); System.out.println("Child Thread interrupted."); Thread.sleep(500); } } catch(InterruptedException e){ System.out.println("Exiting child thread"); } } } class demo_thread_runnable{ public static void main(String args[]){ new NewThread(); try{ for(int i=1; i<=10; i++){ System.out.println("Main Thread: " + i); System.out.println("Main Thread interrupted."); Thread.sleep(500); } } catch(InterruptedException e){ System.out.println("main thread interrupted."); } System.out.println("Main Thread exiting"); } }
… from College notes (BCA/MCA assignments):
Categories: Java
Java OO Programs, Runnable Interface
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