Java Long class

Java AtomicInteger Class

6 Nov 2025 | 2 min read

The Java AtomicInteger class is used in applications such as atomically incremented counters. This class provides operations on underlying int value that can be read and written atomically. This class contains set and get methods that work like reads and writes on volatile variables.

Java AtomicInteger Methods

SN	Modifier and Type	Method	Description
1	int	addAndGet(int delta)	This method atomically adds the given value to the current value.
2	boolean	compareAndSet(int expect, int update)	This method atomically sets the value to the given updated value if the current value is equal to the expected value.
3	int	decrementAndGet()	This method atomically decrements by one the current value.
4	double	doubleValue()	This method returns the value of the specified number as a double.
5	float	floatValue()	This method returns the value of the specified number as a float.
6	int	get()	This method gets the current value.
7	int	getAndAdd()	This method atomically adds the given value to the current value.
8	int	getAndDecrement()	This method atomically decrements by one the current value.
9	int	getAndSet()	This method atomically sets to the given value and returns the old value.
10	int	incrementAndGet()	This method atomically increments by one the current value.
11	int	getAndIncrement()	This method atomically increments by one the current value.
12	int	intValue()	This method returns the value of the specified number as an int.
13	void	lazySet(int newValue)	This method Eventually sets to the given value.
14	long	longValue()	This method returns the value of the specified number as a long.
15	void	set(int newValue)	This method sets to the given value.
16	String	toString()	This method returns the String representation of the current value.
17	boolean	weakCompareAndSet(int expect,int newValue)	This method Atomically sets the value to the given updated value if the current value is equal to the expected value.