When Should We Use Volatile in Java
You Can Use a Volatile Variable If You Want to Read and Write Long and Double Variable Automatically. It Can Be Used as an Alternative Way of Achieving...
You can use a volatile variable if you want to read and write long and double variable automatically.It can be used as an alternative way of achieving synchronization in Java.All reader threads will see the updated value of the volatile variable after completing the write operation.
When should volatile be used?
A variable should be declared volatile whenever its value could change unexpectedly. In practice, only three types of variables could change: Memory-mapped peripheral registers. Global variables modified by an interrupt service routine.
Why do we need volatile?
Conclusion. The volatile field is needed to make sure that multiple threads always see the newest value, even when the cache system or compiler optimizations are at work. Reading from a volatile variable always returns the latest written value from this variable.
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