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Core Java - Interview Questions and Answers for 'Thread class' - 3 question(s) found - Order By Newest

 Q1. Why do we need Thread class even in case we execute thread using runnable interface ?Core Java
Ans. Thread class holds the definition of start method ( This is the method that starts execution of new thread and then calls run method within the scope of new thread ). Interfaces don't hold any definition and so does runnable. So it makes it necessary the usage of Thread class , whatever implementation you choose.

When your class extends the thread class, it carries the definition of start method from parent Thread class onto itself and hence new yourClass.start() helps starting a new thread and then executing run method in that new thread scope.

When you implement runnable interface , you are just making it sure to the JVM that you have implemented the required method ( run() ) which the Thread start method will look for upon executing start method.

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  What is the use of runnable interface if we can always create a new thread using Thread class ?
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 Q2. Name few classes that extend Thread class ?Core Java
Ans. http://www.buggybread.com/2015/02/java-threads-classes-that-inherit.html

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   Like         Discuss         Correct / Improve     java   threads   multithreading   thread class     Asked in 1 Companies


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 Q3. Why do we use Thread Class as well as Runnable Interface for creating threads in Java ?Core Java
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   Like         Discuss         Correct / Improve     Threads  Thread class  runnable interface


Related Questions

  Which keyword is used to provide explicit access of a code block to single thread ?

a. Transient
b. Final
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  Explain multithreading in Java ?
  What is a Deadlock ?
  Explain Thread States ?
  Why do we need Thread class even in case we execute thread using runnable interface ?
  What is the difference between time slicing and preemptive scheduling ?
  Difference between Process and Thread ?
  What is race condition ?
  What is the use of runnable interface if we can always create a new thread using Thread class ?
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