Here is a Java program to find sum of two numbers. To add two numbers in a java program, we will first take two integers as input from user using Scanner and store them in a integer variable num1 and num2. Then we add num1 and num2 using + arithmetic operator and store it in integer variable "sum". Finally, we print the sum of two given integers on screen.
Java Program to Find Sum of Two Numbers
package com.tcc.java.programs;
import java.util.*;
public class SumTwoNumbers {
public static void main(String[] args) {
int num1, num2, sum;
Scanner scanner;
scanner = new Scanner(System.in);
// Take two integer input from user and
// store it in variable num1 and num2
System.out.println("Enter First Number");
num1 = scanner.nextInt();
System.out.println("Enter Second Number");
num2 = scanner.nextInt();
// Add two numbers using + operator
sum = num1 + num2;
System.out.println("Sum of " + num1 + " and
" + num2 + " = " + sum);
}
}
Output
Enter First Number 5 Enter Second Number 7 Sum of 5 and 7 = 12
Java Programs to Find Sum of Two Numbers using Function
This Java program is similar to above program except here we are using a user defined function getSum to calculate the sum of two integers. The function getSum takes two integer arguments and returns the sum of both input parameters.
package com.tcc.java.programs;
import java.util.*;
public class SumTwoNumbersFunction {
public static void main(String[] args) {
int num1, num2, sum;
Scanner scanner;
scanner = new Scanner(System.in);
// Take two integer input from user and
// store it in variable num1 and num2
System.out.println("Enter First Number");
num1 = scanner.nextInt();
System.out.println("Enter Second Number");
num2 = scanner.nextInt();
/*
* Call getSum by passing num1 and num2 as parameter
*/
sum = getSum(num1, num2);
System.out.println("Sum of " + num1 + " and
" + num2 + " = " + sum);
}
public static int getSum(int num1, int num2) {
int sum;
sum = num1 + num2;
return sum;
}
}
Output
Enter First Number 9 Enter Second Number 12 Sum of 9 and 12 = 21
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