Abs() long in Java

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

abs(): This function returns the absolute value of a long value. If the argument is positive, the argument is returned. If the argument is negative, the negation of the argument is returned.

Note: If the argument is equal to the value of Long.MIN_VALUE, the most negative representable long value, the result is that same value, which is negative. In contrast, the Math.absExact(long) method throws an ArithmeticException for this value. 

Parameters: One parameter is required for this function.

arg: The argument whose absolute value is to be determined.

This function returns the absolute value of the argument.

Syntax:

Math.abs(arg)

For Example:

Math.abs(-1000000000) => It returns -1000000000.

Approach

Java

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

        long num = -1000000000;
        System.out.println(Math.abs(num));

    }
}