In this section, we will look at two programs that add two numbers. In the first program, we specify the values of both numbers in the program itself. The second program adds both numbers (entered by the user) and prints the total.
Java Program to Add Two Numbers with Example
Example: First
public class SumTwoNumbers {
public static void main(String[] args) {
int num1 = 5, num2 = 15, sum;
sum = num1 + num2;
System.out.println("Sum of these numbers: "+sum);
}
}
Output:
Sum of these numbers: 20
Example: Second
The scanner allows us to capture user input in order to obtain the values of both numbers from the user. The program then computes and displays the total.
public class SumTwoNumbers2 {
public static void main(String[] args) {
int num1, num2, sum;
Scanner sc = new Scanner(System.in);
System.out.println("Enter First Number: ");
num1 = sc.nextInt();
System.out.println("Enter Second Number: ");
num2 = sc.nextInt();
sc.close();
sum = num1 + num2;
System.out.println("Sum of these numbers: "+sum);
}
}
Output:
Enter First Number:
121
Enter Second Number:
19
Sum of these numbers: 140
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