Final answer:
To write a program that consists of two threads using the concepts from the Concurrency Basics Tutorial in Java, you can create a main thread and a MessageLoop thread. The main thread should create a new thread from the Runnable object, MessageLoop, and wait for it to finish. If the MessageLoop thread takes too long to finish, the main thread should interrupt it.
Step-by-step explanation:
To write a program that consists of two threads using the concepts from the Concurrency Basics Tutorial in Java, you can create a main thread and a MessageLoop thread. The main thread can create a new thread from the Runnable object, MessageLoop, and wait for it to finish. If the MessageLoop thread takes too long to finish, the main thread can interrupt it. You can use a variable named maxWaitTime to store the maximum number of seconds to wait.
Here's an example of how you can implement this:
class MessageLoop implements Runnable {
public void run() {
try {
for (int i = 1; i <= 5; i++) {
System.out.println("Thread-" + Thread.currentThread().getId() + ": " + i + ". All that is gold does not glitter, Not all those who wander are lost");
Thread.sleep(850);
}
} catch (InterruptedException e) {
System.out.println("Message loop interrupted");
}
}
}
public class MainThread {
public static void main(String[] args) {
for (int maxWaitTime = 1; maxWaitTime <= 5; maxWaitTime++) {
System.out.println("maxWaitTime: " + maxWaitTime + " second(s)");
System.out.println("main : Starting MessageLoop thread");
Thread messageLoopThread = new Thread(new MessageLoop());
messageLoopThread.start();
try {
messageLoopThread.join(maxWaitTime * 1000);
if (messageLoopThread.isAlive()) {
System.out.println("main : MessageLoop interrupted");
messageLoopThread.interrupt();
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println("main : Done!");
}
}