In Java, which class is used to create and manage thread groups?

What is a thread in Java?

A. A lightweight process that runs independently within a program

B. A data structure to store variables

C. A type of loop

D. A synchronization mechanism

Which interface is used to create a thread in Java?

A. Processor

B. Executor

C. Threadable

D. Runnable

What is the main advantage of using multithreading in Java programs?

A. Reduced memory usage

B. Simplicity of code

C. Improved program performance by utilizing multiple CPUs or CPU cores

D. Elimination of exceptions

How can you create a new thread in Java by implementing the Runnable interface?

A. Create an object of the Thread class

B. Create a class that implements the Runnable interface and override the run() method

C. Use the start() method of the main thread

D. Create an object of the Thread class