Concurrency in Java

What is a multithreaded program?

• A program that contains two or more parts that can run concurrently.

• A program that runs on a single thread.

• A program that does not allow tasks to wait for resources.

• A program that executes tasks sequentially.

What is a thread?

• The smallest unit of execution that the operating system can schedule.

• A group of associated threads executed in the same environment.

• A process that contains multiple threads.

• A method to manage multiple processes.

What is concurrency?

• The property of executing multiple threads and processes simultaneously.

• The ability to run a program on a single thread.

• The process of switching between threads.

• The method of creating new threads.

What happens when a thread's allotted time is complete?

• A context switch occurs.

• The thread is terminated.

• The thread continues to run.

• The thread is paused indefinitely.

How can a thread be created in Java?

• By extending the Thread class and overriding the run() method.

• By implementing the Runnable interface.

• Both A and B.

• By using the ThreadPoolExecutor.

What does the start() method do?

• Starts a thread by calling its run method.

• Pauses the thread.

• Terminates the thread.

• Sets the thread's priority.

What is the purpose of the join() method?

• Waits for a thread to terminate.

• Starts a new thread.

• Suspends a thread for a period of time.

• Sets a thread's priority.

What does the isAlive() method do?

• Determines if a thread is still running.

• Starts a thread.

• Pauses a thread.

• Terminates a thread.

What is the range of thread priority values?

• 1 to 10.

• 0 to 5.

• 1 to 100.

• 0 to 10.

What does the sleep() method do?

• Suspends a thread for a period of time.

• Starts a new thread.

• Terminates a thread.

• Sets a thread's priority.