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Java / Java Multithreading

Multitasking.

We often multi task, listing to music while working or driving; Browsing internet while waiting for a download to complete.

Even every computer application do things parallel. An email software will be downloading new emails from the server while you are reading an already downloaded email, archive mails in the background, prompt meeting reminders while you are writing an email.

The Computer application that multi tasks is referred as concurrent software.

Java has the hight support for concurrent programming also with its APIs. (java.util.concurrent)

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Multitasking. Multiprogramming/Multiprocessing. Basic units of execution in concurrent programming. Is concurrency possible on simple single processor systems without multiple processors? Define Processes. Define Threads. What is the default thread of every Java application? Thread Objects. When does Thread Interference occur? How do you create a Thread? Which approach is recommended? Does Thread class implements Runnable? What is the signature of Thread run() method? Define synchronization. Can a thread be interrupted when it is in sleep? Does sleep() method throws any Exception? Can the start method be called twice on the same Thread? (OR) Can the start() method invoked again on the same thread object after start() been called first time? Why do we call Thread.start() method which in turns calls run method? Consumer Producer problem. Difference between Thread.interrupted() and Thread.isInterrupted(). Give few example from Java API that throws InterruptedException. 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Java Multithreading part II

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