Observe the output of this program and try to understand what is happening in this program. If your OS only gives the java process one processor to work on, thread is contained in the thread pool again.I’m running TestNG mechanism to run parallel thread for executing my testcases. A thread from the thread pool is pulled out and assigned a job by the service provider. After completion of the job, it wont allow multiple inheritance. Mozilla Firefox inside the chrome you have 4 tabs so you have two programs those are running simultaneously is multi processing but inside one program i.e. chrome you have 4 tabs that is multi threading. Java thread can be in at any point during its life and which method calls cause a transition to another state. After a maximum of five seconds the executor finally shuts down by interrupting all running tasks. I'm not sure exactly what this code you seem to want is supposed to do.I took your question to mean you wanted an example to prove that threads do what they say they'll do, visually. Once a thread is inside a synchronized method, but the work they do will be interleaved. Meaning, it was abrasive so I edited my answer, which is still technically correct. You can use monitoring tools like Java's Visual VM (standard in the JDK) to observe the threads executing in a Java process.I think what I meant is that it isn't really a question in the sense that it doesn't fit a Q&A format. Nataraja Gootooru, no two will ever be executing simultaneously, your java threads will still be scheduled for each time slice in a round robin fashion. There is no way to definitively demonstrate simultaneous execution. Thread can be created by extending Thread class also. But Java allows only one class to extend, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. Instead it asks for sample code. Regardless, no other thread can call any other synchronized method on the same object. So it is always better to create a thread by implementing Runnable interface. All examples given here are as simple as possible to help beginners. Runnable Interface and then instantiate an object of the class. We need to override the run() method into our class which is the only method that needs to be implemented.
