Java Math addExact(long x, long y) method example

public static long addExact(long x, long y)

The addExact(long x, long y) method returns long which corresponds to the result of adding the specified method argument x and y.

Requires Java 1.8 and up

Below is a java code demonstrates the use of addExact() method of Math class. The example presented might be simple however it shows the behavior of the addExact() method.

package com.javatutorialhq.java.examples;

import java.util.Scanner;

/*
 * This example source code demonstrates the use of  
 * addExact(long x, long value) method of Math class
 */

public class MathAddExactLongExample {

	public static void main(String[] args) {
		
		// Ask for user input
		System.out.print("Enter 1st value:");
		
		// use scanner to read the console input
		Scanner scan = new Scanner(System.in);
		
		// Assign the 1st input to String variable
		String value1 = scan.nextLine();
		
		// ask for the second input
		System.out.print("Enter 2nd value:");
		
		// Assign the 2nd input to String variable
		String value2 = scan.nextLine();
		
		// close the scanner object
		scan.close();		
		
		// convert the values to long
		long longVal1 = Long.parseLong(value1);
		long longVal2 = Long.parseLong(value2);				
			
		// get the result of addExact method
		long result = Math.addExact(longVal1,longVal2);
		System.out.print("Result of the operation:"+result);
	}

}

The above java example source code demonstrates the use of addExact() method of Math class. We simply ask for two user input and we use the Scanner class to parse it. Since we have used the nextLine() method to get the console value, and the return data type is String thus we have used the Long.parseLong to transform it into long. We have to convert it first to long because the addExact(long x, long y) method accepts long method argument.

Below is the sample output when you run the above example.

• Java Math Class Tutorial
• Java Tutorial

• Oracle Java Documentation