Javamultithreading

What is the primary purpose of using threads in programming?

• To simplify code structure.

• To execute multiple tasks concurrently.

• To reduce memory consumption.

• To improve code readability.

What is the output when obj1.show() and obj2.show() are called sequentially, where obj1 prints 'hi' 10 times and obj2 prints 'hello' 10 times?

• "hi" and "hello" interleaved.

• 10 "hi"s followed by 10 "hello"s.

• 10 "hello"s followed by 10 "hi"s.

• Only "hi" is printed.

How does a Java program typically execute multiple method calls from the main method without explicit threading?

• All methods run simultaneously.

• Methods are executed in a random order.

• Methods are executed sequentially, one after another.

• Only the first method call is executed.

How can a regular Java class be made capable of running as a thread?

• By implementing the Runnable interface.

• By extending the Thread class.

• By declaring it as public static.

• By adding a run() method.

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Which method is used to initiate a new thread of execution in Java?

• run()

• execute()

• start()

• initiate()

When the start() method is called on a Thread object, which method is internally invoked to execute the thread's specific task?

• main()

• show()

• execute()

• run()

Why might threads appear to execute sequentially (e.g., all outputs from one thread, then all from another) even when properly started, if the tasks are very short?

• The start() method was not correctly implemented.

• The processor is too slow to handle parallel execution.

• The number of iterations in the task was too small for the machine's speed to show interleaving.

• The Thread class was not properly extended.

What operating system component is responsible for managing and allocating CPU time to multiple threads, making them appear to run concurrently?

• Compiler

• Debugger

• Scheduler

• Interpreter