Multi-threading

Question 1

What is the difference between Process and Thread?

Answer 1

A process is an independent program execution unit with its own memory space, while a thread is a smaller execution unit within a process that shares the process’s memory.

Question 2

What are the benefits of multi-threaded programming?

Answer 2

Benefits include better CPU utilization, improved application responsiveness, and the ability to perform multiple tasks concurrently.

Question 3

What is difference between user Thread and daemon Thread?

Answer 3

User threads keep the application alive, while daemon threads are background threads that do not prevent the JVM from exiting when no user threads are running.

Question 4

How can we create a Thread in Java?

Answer 4

A thread can be created by extending Thread or implementing Runnable and then invoking the start() method.

Question 5

What are different states in lifecycle of Thread?

Answer 5

The thread lifecycle includes states like New, Runnable, Blocked,

Question 6

Can we call run() method of a Thread class?

Answer 6

Yes, but calling run() directly won’t create a new thread; it will execute on the current thread.

Question 7

How can we pause the execution of a Thread for specific time?

Answer 7

You can pause a thread using Thread.sleep(milliseconds).

Question 8

What do you understand about Thread Priority?

Answer 8

Thread priority, between 1 and 10, influences the scheduling of threads but doesn’t guarantee the execution order.