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AtomicLong addAndGet() method in Java with examples
  • Last Updated : 29 Jan, 2019

The Java.util.concurrent.atomic.AtomicLong.addandget() is an inbuilt method in java which adds the value which is passed in the parameter of the function to the previous value and returns the new updated value which is of data-type long.

Syntax:

public final long addAndGet(long val)

Parameters: The function accepts a single mandatory parameter val which specifies the value to be added.

Return value: The function returns the value after addition is done.

Below programs illustrate the above method:



Program 1:




// Java program that demonstrates
// the addandget() function
  
import java.util.concurrent.atomic.AtomicLong;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as 0
        AtomicLong val = new AtomicLong();
  
        // Update the value
        long c = val.addAndGet(6);
  
        // Prints the updated value
        System.out.println("Updated value: "
                           + c);
    }
}
Output:
Updated value: 6

Program 2:




// Java program that demonstrates
// the addandget() function
  
import java.util.concurrent.atomic.AtomicLong;
  
public class GFG {
    public static void main(String args[])
    {
  
        // Initially value as 18
        AtomicLong val = new AtomicLong(18);
  
        // Prints the updated value
        System.out.println("Previous value: "
                           + val);
  
        // adds the value to 18
        val.addAndGet(6);
  
        // Prints the updated value
        System.out.println("Updated value: "
                           + val);
    }
}
Output:
Previous value: 18
Updated value: 24

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html#addAndGet-long-

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