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KwickClips Java · 40 sec · free

Which method do you call to begin a thread?

Short answer. start().

What happens if you call run() directly?

No new thread is created. It runs like a normal method.

Remember

Extend Thread or Runnable
Always call start()

You wrote a thread and called run. Mistake? Extend Thread and put the work in run. Then call new T dot start. Start makes a new thread. Calling run does not. Extend Thread or implement Runnable. Always call start.

This clip is from the full lesson: Assertions and Threads in Java — 6 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: CBSE Class 12 Information Technology (802), CBSE Class 12 Information Technology (802)

More KwickClips from this lesson

An assert line checking that marks are at most 100, with the AssertionError message it produces.What happens if an assert condition is false?38 secThree points: a thread is one path of execution, programs start in the main thread, many threads run together.What is a thread?40 secTwo threads updating the same counter c, and the same method marked synchronized.What is a race condition?40 sec
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