There are different kinds of calculators which are available in the market for different purposes. Sam wants to make a calculator which can return the sum of two integers.
Implement the Adder class which should follow the following:
It should inherit from the Calculator class .
It should implement the method add(int a, int b) which should calculate and return the sum of two integer parameters, a and b.
The locked stub code in the editor consists of the following:
An abstract class named Calculator which contains an abstract method, add(int a, int b).
A solution class which
creates an object of the Adder class.
reads the inputs and passes them in a method called by the object of the Adder class.
Constraints
0 < a, b < 105
Input Format For Custom Testing
The only line contains two space-separated integers, a and b.
Sample Case 0
Sample Input For Custom Testing
1 1
Sample Output
The sum is: 2
Explanation
When the add method is called with the arguments a = 1 and b = 1, it calculates and returns their sum as 1 + 1 = 2, which is then printed.
Sample Case 1
Sample Input For Custom Testing
2 3
Sample Output
5
Explanation
When the add method is called with the arguments a = 2 and b = 3, it calculates and returns their sum as 2 + 3 = 5, which is then printed.
SOLUTION :
import java.util.Scanner;
abstract class Calculator {
abstract int add(int a, int b);
}
/*
Write the Adder class here. Do not use an access modifier at the beginning of your class declaration.
*/
class Adder extends Calculator
{
int add(int a,int b)
{
return (a+b);
}
}
public class Solution {
public static void main(String[] args) {
int a, b;
try (Scanner scan = new Scanner(System.in)) {
a = scan.nextInt();
b = scan.nextInt();
}
Calculator adderObject = new Adder();
System.out.println("The sum is: " + adderObject.add(a, b));
}
}
