Threads -Java Programming MCQ Questions and Answers

Which of these statements is incorrect?

A) By multithreading CPU idle time is minimized, and we can take maximum use of it B) By multitasking CPU idle time is minimized, and we can take maximum use of it C) Two thread in Java can have the same priority D) A thread can exist only in two states, running and blocked

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Answer & Solution

Answer: Option D

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What will be the output of the following Java code?

class multithreaded_programing
{
    public static void main(String args[])
    {
        Thread t = Thread.currentThread();
        t.setName("New Thread");
        System.out.println(t);        
    }
}

A) Thread[5,main] B) Thread[New Thread,5] C) Thread[main,5,main] D) Thread[New Thread,5,main]

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Answer: Option D

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What will be the output of the following Java code?

class multithreaded_programing
{
    public static void main(String args[])
    {
        Thread t = Thread.currentThread();
        System.out.println(t);        
    }
}

A) Thread[5,main] B) Thread[main,5] C) Thread[main,0] D) Thread[main,5,main]

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Answer: Option D

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What should not be done to avoid deadlock?

A) Avoid using multiple threads B) Avoid hold several locks at once C) Execute foreign code while holding a lock D) Use interruptible locks

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Answer: Option C

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What is synchronization in reference to a thread?

A) It's a process of handling situations when two or more threads need access to a shared resource B) It's a process by which many thread are able to access same shared resource simultaneously C) It's a process by which a method is able to access many different threads simultaneously D) It's a method that allow too many threads to access any information the require

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Answer & Solution

Answer: Option A

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