Write a program that simulates a simple calculator. The calculator has the abili

Question

Write a program that simulates a simple calculator. The calculator has the ability to have two real numbers inputted and then:

*multiply the two numbers
*divide the first number by the second number (be sure to check for division by 0 and provide an error message if this occurs)
*add the two numbers together
*subtract the second number from the first number

Example: User inputs 20 and 5, Output would be:

Multiplied = 100, Divided = 4, Added = 25, Subtracted = 15

Create a method for each of the four tasks. The main method should ask for the numbers and display the results of each of the four tasks. Have the program repeat until the user tells the program to stop.

Explanation / Answer

import java.util.*; public class Calc { public static void main(String[] args) { double a,b; Scanner sc = new Scanner(System.in); while (sc.hasNextDouble()){ a = sc.nextDouble(); b = sc.nextDouble(); if (b == 0){ System.out.println("Can't be divided by zero."); System.out.printf("Multiplied = %d, Divided = NA, Added = %d, Subtracted = %d", multiple(a,b), add(a,b), subtract(a,b)); }else { System.out.printf("Multiplied = %d, Divided = %.2f, Added = %d, Subtracted = %d", multiple(a,b), divide(a,b), add(a,b), subtract(a,b)); } } } public static double multiple(double a,double b){ return a*b; } public static double divide(double a,double b){ return a/b; } public static double add(double a,double b){ return a+b; } public static double subtract(double a,double b){ return a-b; } }

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