Threading in Java: What is the purpose of the volatilekeyword in java?

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Prakash Chandra Hazari

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volatile tells the compiler that the value of a variable must never be cached as its value may change outside of the scope of the program itself. two threads can shared one value without changing its original value..
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The volatile keyword in Java is used as an indicator to Java compiler and Thread that do not cache value of this variable and always read it from main memory.
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