Java AtomicLong getAndAdd() Method

The getAndAdd() method of Java AtomicLong class adds a number to the AtomicLong but returns the value the AtomicLong had before the value was added.

Syntax

Parameters

delta - The value to add

Return value

The previous value

Example 1

import java.util.concurrent.atomic.AtomicLong;

public class AtomicLongGetAndAddExample1 {
	
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong();
		//adds this number to the Initialized value
		Long result = atomiclong.getAndAdd(10);
		//Prints the added value before addition to the Initialized value
		System.out.println(result);
	}

}

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Output:

Example 2

import java.util.concurrent.atomic.AtomicLong;

public class AtomicLongGetAndAddExample2 {
	
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong(10);
		//adds this number to the Initialized value
		Long result = atomiclong.getAndAdd(10);
		//Prints the added value before addition to the Initialized value
		System.out.println(result);
	}

}

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Output:

Example 3

import java.util.concurrent.atomic.AtomicLong;

public class AtomicLongGetAndAddExample3 {
	
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong(-5);
		//adds this number to the Initialized value
		Long result = atomiclong.getAndAdd(10);
		//Prints the added value before addition to the Initialized value
		System.out.println(result);
	}

}

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Output:

-5

Example 4

import java.util.concurrent.atomic.AtomicLong;

public class AtomicLongGetAndAddExample4 {
	
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong(-20);
		//adds this number to the Initialized value
		Long result = atomiclong.getAndAdd(-20);
		//Prints the added value before addition to the Initialized value
		System.out.println(result);
	}

}

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Output: