What is Thread in java?

• Threads consumes CPU in best possible manner, hence enables multi processing. Multi threading reduces idle time of CPU which improves performance of application.

• Suppose one thread needs 10 minutes to get certain task, 10 threads used at a time could complete that task in 1 minute, because threads can run parallel.

• Thread are light weight process.

• A thread class belongs to java.lang package.

• We can create multiple threads in java, even if we don’t create any Thread, one Thread at

• least  do exist i.e. main thread.

• Multiple threads run parallel in java.

• Threads have their own stack.