JavaTBrains

Multithreading  is one of the most important concept in core java. In this article we will learn what is multithreading? , what is the use of it? and What is the use of Synchronization and when to use it?  with detailed examples. At a time, two or more threads are accessing the same object is called as Multithreading  in Java .  First, we will create two threads for two objects. It is also possible to run two or more threads on a single class object. In this case, there is a possibility to get unreliable results. If the two threads are perform same task, then they need same object to be executed each time. For your better understanding, take an example of any reservations like, railway, movie ticket booking,etc. Let us think only one berth is available in a train and two passengers are asking for that berth. The first person has sent a request to allocate that ticket/berth to him. At the same time, the second person also sent a request to allocate that ticket/berth to him

To create user defined thread in java, create a class that extends Thread or implements Runnable interface. Both of the Thread class and Runnable interface are available in java.lang package. class MyClass extends Thread OR class MyClass implements Runnable         •   Now in this class, write a run() method as, public void run (){ statements ; }        by default, this run() method is recognised and executed by a thread when you started a thread.        •    Create an object of MyClass, So that the run() method is available for execution. MyClass obj = new MyClass ();       •    Now, Create a thread and attach the thread to the object obj. Thread t = new Thread ( obj );       •    Run the thread. For this purpose, we should use start() method of Thread class. t . start ();          Now, the thread will start execution on the object of MyClass. In that object, run() method is found, henc

In this page we will come to know most of the threads interview questions and answers. If any one has faced any of the other questions which is not mentioned in the current page. Please share with me through "Contact me here" gadget which is present in end of the page or drop me an email to " admin@javatbrains.com ".   Q1: How many ways you can create a Thread? A: Mainly two ways we can create Thread class. Extending Thread class implementing Runnable Interface Q2: Can you e xplain about these two ways to create a Thread? A: The first method of creating a thread class is to simply extend from the Thread class. This should be done if the class does not ever need to be extended from another class.               import java.lang.*;               public class Count extends Thread{                      public void run(){                             .....                      }               }         The above example creates anew class Count that ext