Question

Write a class program to design a calculator with the following specifications:

Class name : Calculator
Data members/instance variables : private int result
Member functions
calculator () : constructor to initialize result with zero.
void add( int a): to add a with the result
void sum( int a) : to subtract a from the result
void mul( ) : to multiply a with the result
void div (int a) : to divide result by a
void display: to display result
void clear(): to clear the result​

pls report this question after answering it

Answer 1

public class Calculator {

private int result;

Calculator( ) {

result = 0;

}

void add(int a) {

result += a;

}

void sub(int a) {

result -= a;

}

void mul(int a) {

result *= a;

}

void div(int a) {

result /= a;

}

void display( ) {

System.out.println("Result - " + result);

}

void clear( ) {

result = 0;

}

}