AtomicInteger getAndIncrement() method in Java with examples
Last Updated :
29 Jan, 2019
The java.util.concurrent.atomic.AtomicInteger.getAndIncrement() is an inbuilt method in java that increases the given value by one and returns the value before updation which is of data-type int.
Syntax:
public final int getAndIncrement()
Parameters: The function does not accepts a single parameter.
Return value: The function returns the value before increment operation is performed to the previous value.
Program below demonstrates the function:
Program 1:
import java.util.concurrent.atomic.AtomicInteger;
public class GFG {
public static void main(String args[])
{
AtomicInteger val
= new AtomicInteger( 0 );
int res
= val.getAndIncrement();
System.out.println( "Previous value: "
+ res);
System.out.println( "Current value: "
+ val);
}
}
|
Output:
Previous value: 0
Current value: 1
Program 2:
import java.util.concurrent.atomic.AtomicInteger;
public class GFG {
public static void main(String args[])
{
AtomicInteger val
= new AtomicInteger( 18 );
int res = val.getAndIncrement();
System.out.println( "Previous value: "
+ res);
System.out.println( "Current value: "
+ val);
}
}
|
Output:
Previous value: 18
Current value: 19
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html#getAndIncrement–
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