What is the AtomicInteger.decrementAndGet method in Java?
AtomicInteger represents an int value that may be updated AtomicInteger is present in the java.util.concurrent.atomic package.
The decrementAndGet method of the AtomicInteger will atomically decrement the current value by 1 and returns the updated value of the AtomicInteger object.
Syntax
public final int decrementAndGet()
Parameters
This method doesn’t take any argument.
Return value
This method returns the decremented value as an integer.
Code
The code below demonstrates how to use the decrementAndGet method:
import java.util.concurrent.atomic.AtomicInteger;class DecrementAndGet{public static void main(String[] args) {AtomicInteger atomicInteger = new AtomicInteger(10);System.out.println("The value in the atomicInteger object is " + atomicInteger.get());System.out.println("\nCalling atomicInteger.decrementAndGet()");int val = atomicInteger.decrementAndGet();System.out.println("The new Value is : " + val);}}
Explanation
Line 1: We have imported the AtomicInteger class.
Line 4: Created a new object for the AtomicInteger class with the name atomicInteger and with the value 10.
Line 9: Called the decrementAndGet method. This method will decrement the current value(10) by 1 and returns the new value(9).
