isalive() and join() to wait for multiple threads to finish, JAVA program calculator

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Subject Name	JAVA
Program Name	isalive() and join() to wait for multiple threads to finish
Program Description	isalive() and join() to wait for multiple threads to finish



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Program Code
//isalive() and join() to wait for multiple threads to finish class NT implements Runnable { String tname; //name of thread Thread t; NT(String nm) { tname = nm; t = new Thread(this, tname); System.out.println("NT = " + t); t.start(); } public void run() { try { for (int i = 1; i <= 5; i++) { System.out.println(tname + " = " + i); Thread.sleep(1000); } } catch (InterruptedException e) { System.out.println(tname + " InterruptedException"); } System.out.println(tname + " exit"); } } class IsAliveJoinDemo { public static void main(String args[]) { NT ob1 = new NT("One"); NT ob2 = new NT("Two"); NT ob3 = new NT("Three"); System.out.println("ob1.t.isAlive() = " + ob1.t.isAlive()); System.out.println("ob2.t.isAlive() = " + ob2.t.isAlive()); System.out.println("ob3.t.isAlive() = " + ob3.t.isAlive()); // wait for threads to finish try { System.out.println("Waiting for threads to finish"); ob1.t.join(); ob2.t.join(); ob3.t.join(); } catch (InterruptedException e) { System.out.println("Main InterruptedException"); } System.out.println("ob1.t.isAlive() = " + ob1.t.isAlive()); System.out.println("ob2.t.isAlive() = " + ob2.t.isAlive()); System.out.println("ob3.t.isAlive() = " + ob3.t.isAlive()); System.out.println("Main exit"); } }


Input Values(You must enter all user input value here, that you want to use during runtime)



To Run JAVA Program: 1. public static void main(String s[]) function must be in Class Main This (1.) will be done automatically..., So don't worry.