StrictMath.addExact(long, long) in Java

StrictMath.addExact(long, long): This method is available in java.lang.StrictMath class of Java.

Syntax:

long java.lang.StrictMath.addExact(long x, long y)

This method takes two arguments of type long as its parameters. This method returns the sum of its arguments, throwing an exception if the result overflows a long.

Parameters: Two parameters are required for this method.

x: the first value.

y: the second value.

Returns: the result

Throws:

ArithmeticException - if the result overflows a long.

Approach 1: When no exceptions.

Java

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

        long x = 1899199191, y = 1999199919;
        System.out.println(StrictMath.addExact(x, y));
    }
}

Output:

3898399110

Approach 2: ArithmeticException 

Java

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

        long x = 1899199191, y = Long.MAX_VALUE;
        System.out.println(StrictMath.addExact(x, y));
    }
}

Output:

Exception in thread "main" java.lang.ArithmeticException: long overflow
	at java.base/java.lang.Math.addExact(Math.java:848)
	at java.base/java.lang.StrictMath.addExact(StrictMath.java:759)