Java AtomicLong getAndSet() Method

The getAndSet() method of Java AtomicLong class atomically sets the value to newValue and returns the old value

Syntax

Parameters

newValue - the new value

Returns

the previous value

Example 1

import java.util.concurrent.atomic.AtomicLong;
public class AtomicLongGetAndSetExample1 {
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong();
		//Returns the previous value
		Long result = atomiclong.getAndSet(10);
		//Prints the previous value
		System.out.println("Previous Value : " + result);
		//Sets and prints the New Value
		System.out.println("New Value : " + atomiclong);
	}
}

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Output:

Previous Value : 0
New Value : 10

Example 2

import java.util.concurrent.atomic.AtomicLong;
public class AtomicLongGetAndSetExample2 {
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong(5);
		//Returns the previous value
		Long result = atomiclong.getAndSet(10);
		//Prints the previous value
		System.out.println("Previous Value : " + result);
		//Sets and prints the New Value
		System.out.println("New Value : " + atomiclong);
	}
}

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Output:

Previous Value : 5
New Value : 10

Example 3

import java.util.concurrent.atomic.AtomicLong;
public class AtomicLongGetAndSetExample3 {
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong(-10);
		//Returns the previous value
		Long result = atomiclong.getAndSet(20);
		//Prints the previous value
		System.out.println("Previous Value : " + result);
		//Sets and prints the New Value
		System.out.println("New Value : " + atomiclong);
	}
}

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Output:

Previous Value : -10
New Value : 20

Example 4

import java.util.concurrent.atomic.AtomicLong;
public class AtomicLongGetAndSetExample4 {
	public static void main (String [] args) {
		AtomicLong atomiclong = new AtomicLong(-5);
		//Returns the previous value
		Long result = atomiclong.getAndSet(-10);
		//Prints the previous value
		System.out.println("Previous Value : " + result);
		//Sets and prints the New Value
		System.out.println("New Value : " + atomiclong);
	}
}

Test it Now

Output: