The Java.AtomicLong.getAndUpdate() method is an inbuilt method, which updates the current value of the object by applying the specified operation on the current value. It takes an object of LongUnaryOperator interface as its parameter and applies the operation specified in the object to the current value. It returns the previous value.
public final long getAndUpdate(LongUnaryOperator function)
Parameters: This method accepts as parameter an LongUnaryOperator function.
It applies the given function to the current value of the object.
Return Value: The function returns the previous value of the object.
Example to demonstrate the function.
Previous Value is -20000 Updated value is 20000
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