AtomicInteger decrementAndGet() method in Java with examples

The java.util.concurrent.atomic.AtomicInteger.decrementAndGet() is an inbuilt method in java that decreases the previous value by one and returns the value after updation which is of data-type int.

Syntax:

public final int decrementAndGet()

Parameters: The function does not accepts a single parameter.



Return value: The function returns the value after decrement operation is performed to the previous value.

Program below demonstrates the function:

Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java Program to demonstrates
// the decrementAndGet() function
  
import java.util.concurrent.atomic.AtomicInteger;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as 0
        AtomicInteger val
            = new AtomicInteger(0);
  
        System.out.println("Previous value: "
                           + val);
  
        // Decrement and get
        int res
            = val.decrementAndGet();
  
        // Prints the updated value
        System.out.println("Current value: "
                           + res);
    }
}

chevron_right


Output:

Previous value: 0
Current value: -1

Program 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java Program to demonstrates
// the decrementAndGet() function
  
import java.util.concurrent.atomic.AtomicInteger;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as 18
        AtomicInteger val
            = new AtomicInteger(18);
  
        System.out.println("Previous value: "
                           + val);
  
        // Decremenet and get new value
        int res = val.decrementAndGet();
  
        // Prints the updated value
        System.out.println("Current value: "
                           + res);
    }
}

chevron_right


Output:

Previous value: 18
Current value: 17

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html#decrementAndGet–



My Personal Notes arrow_drop_up

The function of education is to teach one to think intensively and to think critically

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.