Suppose we have the following code: public class Foo { public Foo() { ... } public void first() { ... } public void second() { ... } public void third() { ... } } The same instance of Foo will be passed to three different threads. ThreadA will call first threadB will call second, and thread( will call third. Design a mechanism to ensure that first is called before second and second is called before third.

Consider the below Java code. import public class Semaphore Demo java.util.concurrent.Semaphore; Semaphore binarySema= new Semaphore (1); public static void main (String args[]) { final SemaphoreDemo sema DemoObj= new Semaphore Demo (); Thread td1= new Thread() ( public void run () { } }} } }; Thread td2= new Thread () { @Override public void run () { sema DemoObj.testMutualExclusion (); } sema DemoObj.testMutualExclusion (); tdl.start(); td2.start (); private void testMutualExclusion () { try { binarySema.acquire(); System.out.println (Thread.currentThread().getName()+ "inside the region of mutual exclusive."); Thread.sleep (1000); } catch (InterruptedException e) { ie.printStackTrace(); } finally ( System.out.println (Thread.currentThread().getName() + "outside the region of mutual exclusive."); What would be the output of the program?

Exercise 1: Write a thread class TabPrinter that prints the elements of an array of integers (in one line) every 2 seconds 5 times. Use the way of extending the class thread. Write the main method which creates and starts three threads Printer which will print different arrays of integers. After that it prints "Main won’t wait. Main exits". Modify the above thread program so that you implement the interface Runnable. Make the main thread waiting till all other threads finish execution. ____________________________________________________________________________________________ Exercise 2: Write a thread class TextThread that prints a text every 1 second 10 times. Read the following main class. Try to guess what will be its output. class Test { public static void main(String s[]) throws Exception { TextThread x = new TextThread ("I am thread x"); TextThread y= new TextThread ("I am thread y"); System.out.println("I am Main thread"); } } Write it and execute it. Is the…

Steps to be followed: Create a class called MyThread that extends the Thread class. Declare an instance variable int limitToStop in the MyThread class. Create a parameterized constructor in the MyThread class that takes an int as a parameter to initialize a limitToStop instance variable. Override the run() method in the MyThread class. In the run() method, put a for-loop that goes from 0 to limitToStop. The block associated with the for-loop should print out only the odd numbers. Call Thread.sleep(1000) after every number you print out in the for-loop you created in the previous step. The Thread.sleep(1000) method throws an InterruptedException , which is a checked exception. Therefore, we need to enclose the Thread.sleep(1000) call in a try block. Also, add a catch block associated with the try that catches the InterruptedException and prints out the exception information using the printStackTrace() method. Create a MyThread variable using the new keyword in the main()…

What is the cartesian product of sets {6,7} and {7,8,9}?