AtomicIntegerArray decrementAndGet() method in Java with Examples
Last Updated :
01 Dec, 2020
The Java.util.concurrent.atomic.AtomicIntegerArray.decrementAndGet() is an inbuilt method in Java that atomically decrements by one the element at a given index. This method takes the index value and the value to be added as the parameters and returns the updated value at this index.
Syntax:
public final int decrementAndGet(int i)
Parameters: The function accepts a single parameter i which is the index where decrement by one operation is performed.
Return value: The function returns the updated value which is in Integer.
Below programs illustrate the above method:
Program 1:
Java
import java.util.concurrent.atomic.AtomicIntegerArray;
public class GFG {
public static void main(String args[])
{
int a[] = { 1 , 2 , 3 , 4 , 5 };
AtomicIntegerArray arr = new AtomicIntegerArray(a);
System.out.println( "The array : " + arr);
int idx = 3 ;
arr.decrementAndGet(idx);
System.out.println( "The array after update : "
+ arr);
}
}
|
Output:
The array : [1, 2, 3, 4, 5]
The array after update : [1, 2, 3, 3, 5]
Program 2:
Java
import java.util.concurrent.atomic.AtomicIntegerArray;
public class GFG {
public static void main(String args[])
{
int a[] = { 1 , 2 , 3 , 4 , 5 };
AtomicIntegerArray arr = new AtomicIntegerArray(a);
System.out.println( "The array : " + arr);
int idx = 0 ;
arr.decrementAndGet(idx);
System.out.println( "The array after update : "
+ arr);
}
}
|
Output:
The array : [1, 2, 3, 4, 5]
The array after update : [0, 2, 3, 4, 5]
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/atomic/AtomicIntegerArray.html#decrementAndGet(int)
Like Article
Suggest improvement
Share your thoughts in the comments
Please Login to comment...