Multithreading

What is a thread in Java?

• A lightweight process

• A class

• A function

• • A variable

What is the main advantage of multithreading?

• Decreased performance

• Increased CPU utilization

• More memory consumption

• None of the above

In Java, a thread is represented by which class?

• Runnable

• ThreadClass

• Thread

• Executor

How can we create a thread in Java?

• By extending Thread class

• By implementing Runnable interface

• Both a & b

• None of the above

What is the correct syntax to create a thread by extending the Thread class?

• class MyThread extends Runnable { }

• class MyThread extends Thread { }

• class MyThread implements Thread { }

• • class MyThread implements Runnable { }

Which method is overridden when using the Runnable interface?

• start()

• execute()

• begin()

• run()

Which method is used to start a thread?

• run()

• start()

• execute()

• • begin()

What happens if run() is called directly instead of start()?

• A new thread is created

• It executes in parallel

• It throws an exception

• The code runs on the main thread

Which method makes a thread sleep for a specified time?

• sleep()

• wait()

• pause()

• hold()

What happens if start() is called twice on the same thread?

• The thread restarts

• The thread runs normally

• IllegalThreadStateException is thrown

• Nothing happens