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Java / Java Multithreading

What is Daemon thread in Java?

Daemon thread in Java are those thread which runs in background and mostly created by JVM for performing background task. A daemon thread is a thread that does not prevent the JVM from exiting when the Java program finishes but the thread is still running. An example for a daemon thread is the garbage collection.

The setDaemon(boolean) method can be used to change the Thread daemon properties before the thread starts.

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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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