AtomicLong accumulateAndGet() method in Java with Examples
Last Updated :
04 Feb, 2021
The Java.AtomicLong.accumulateAndGet() method is an inbuilt method, which updates the current value of the object by applying the specified operation on the current value and value passed as a parameter. It takes a long as its parameter and an object of LongBinaryOperator interface and applies the operation specified in the object to the values. It returns the updated value.
Syntax:
public final long accumulateAndGet(long y,
LongBinaryOperator function)
Parameters: This method accepts as parameter a long value y and an LongBinaryOperator function. It applies the given function to the current value of the object and the value y.
Return Value: The function returns the updated value of the current object.
Example to demonstrate the function.
Java
import java.util.concurrent.atomic.AtomicLong;
import java.util.function.LongBinaryOperator;
public class Demo {
public static void main(String[] args)
{
AtomicLong atomicLong = new AtomicLong( 555 );
LongBinaryOperator binaryOperator
= (x, y) -> x * y;
System.out.println( "Initial Value is "
+ atomicLong);
long value
= atomicLong
.accumulateAndGet( 555 , binaryOperator);
System.out.println( "Updated value is "
+ value);
}
}
|
Output:
Initial Value is 555
Updated value is 308025
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html
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