What is the use of runnable interface if we can always create a new thread using Thread class ?
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Java - Interview Questions and Answers

 Q1. What is the use of runnable interface if we can always create a new thread using Thread class ?Core Java
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Ans. It's a choice to be made whether to use first approach ( Thread class ) or second approach ( runnable interface ) by the programmer. The second facility has been given for cases where your class is already extending some parent class and hence cannot extend another class ( for Thread ) as Java doesn't allow multiple inheritance.

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