decrementExact() long in Java

decrementExact(): This method is available in the Math class of Java.

Syntax:

long java.lang.Math.decrementExact(long a)

This method takes one parameter of type long. This method returns the argument decremented by one. It throwing an exception if the result overflows a long.

Note: The overflow only occurs for the minimum value. 

Parameters:One parameter is required for this method.

a: the value to decrement

Returns:the result.

Note: It Throws ArithmeticException - if the result overflows a long.

For Example:

decrementExact(1999199191) = > It returns 1999199190

Approach

Java

public class DecrementExactLong {
    public static void main(String[] args) {

        long a = 1999199191;
        System.out.println(Math.decrementExact(a));

    }
}

Output:

1999199190