Methods - Assignment 3

Implement a class Calculator with the instance variable and method mentioned below. 

Method Description

sumOfDigits()

• Calculate and return the sum of the digits of the num member variable

Test the functionalities using the provided Tester class. 

 

Sample Input and Output

class Calculator{

public int num;

public int sumOfDigits()

{

int a=num,rem=0,sum=0;

while(a!=0)

{

rem=a%10;

a=a/10;

sum=sum+rem;

}

return sum;

}

}

class Tester{

public static void main(String args[]){

     Calculator calculator=new Calculator();

calculator.num=123;

int x=calculator.sumOfDigits();

System.out.println(x);

//AssignavaluetothemembervariablenumofCalculatorclass//InvokethemethodsumOfDigitsofCalculatorclassanddisplaytheoutput}

}

}