Java AtomicInteger decrementAndGet() method

The decrementAndGet() method of Java AtomicInteger class subtracts one from the given value and returns the value after substraction.

Syntax

Return

It returns the updated value.

Example 1

import java.util.concurrent.atomic.AtomicInteger;
public class AtomicIntegerDecrementAndGetExp1 
{
    public static void main(String[] args) 
    {
        AtomicInteger atomicint= new AtomicInteger(10);
        atomicint.decrementAndGet();
        System.out.println("the value after decrement: " + atomicint);
    }
}

Test it Now

Output:

the value after decrement: 9

Example 2

import java.util.concurrent.atomic.AtomicInteger;
public class AtomicIntegerDecrementAndGetExp2 
{
    public static void main(String[] args) 
    {
        AtomicInteger atomicint = new AtomicInteger();
        atomicint.decrementAndGet();
        System.out.println("the value after decrement: " + atomicint);
    }
}

Test it Now

Output:

the value after decrement: -1

Example 3

import java.util.concurrent.atomic.AtomicInteger;
public class AtomicIntegerDecrementAndGetExp3 
{
    public static void main(String[] args) 
    {
        AtomicInteger atomicint= new AtomicInteger(-2);
        atomicint.decrementAndGet();
        System.out.println("the value after decrement:"+ atomicint);
    }
}

Test it Now

Output:

the value after decrement:-3

Example 4

import java.util.concurrent.atomic.AtomicInteger;
public class AtomicIntegerDecrementAndGetExp4 
{
    public static void main(String[] args) 
    {
        AtomicInteger atomicint = new AtomicInteger(-1);
        atomicint.decrementAndGet();
        System.out.println("the value after decrement: " + atomicint);
    }
}

Test it Now

Output:

the value after decrement: -2

Example 5

import java.util.concurrent.atomic.AtomicInteger;
public class AtomicIntegerDecrementAndGetExp5
{
    public static void main(String[] args) 
    {
        AtomicInteger atomicint = new AtomicInteger(1);
        atomicint.decrementAndGet();
        System.out.println("the value after decrement: " + atomicint);
    }
}

Test it Now

Output: