JAVA Basic Programs -- Sum of Two Numbers

Sum of two numbers by receiving value from keyboard

   In this program we use two variables which receive value from the keyboard and add those values and sum of these numbers are stored in the third variable.






In this example we are using Scanner, Scanner is a class in java.util package used for obtaining the input of the primitive types like int, double etc. and strings.
It is one of the ways to read input in a Java program.

Syntax for scanner...

Declare the object and initialize with predefined standard input object

Scanner sc = new Scanner(System.in);

String input
     
 String name = sc.nextLine();

Character input

char gender = sc.next().charAt(0);

Numerical data input
byte, short and float can be read
using similar-named functions.
     
 int age = sc.nextInt();
 long mobileNo = sc.nextLong();
 double cgpa = sc.nextDouble();


Xample:

File_name: Addition.java

For Compiling: javac Addition.java

For Execution: java Addition

Remember filename and class name must be the same

import java.util.Scanner;

class Addition
{
public static void main(String[] args)
{
        int a, b, c=0;
Scanner s=new Scanner(System.in);
System.out.println("Enter any two numbers :");
a=s.nextInt();
b=s.nextInt();
c=a+b;
System.out.println("Sum: "+c);
}
}

OutPut:

Enter any two numbers :
10
20
Sum: 30


That's it, I hope it is useful.

Thanks For reading.