Java Simple English Calculator, output issue

I am writing a calculator program that takes inputs from 0-9 and outputs the results in both numerical from and in plain english (Ex: Two plus three equals 5). I have gotten it to be able to print out the result in words but I am now stuck on how to get it to print out the original problem in numerical form. The output must include both the result in numbers and in words.

The numbers have already been converted into strings through a switch statement but is there anyway I can print out the original problem? If not would I have to completely restructure this instead? Any help would be appreciated I have been stuck on this for a while now.

Here is my code

import java.util.Scanner;
public class Project {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
char operation;
int num1, num2;
//Asks for user to input first number
System.out.println("Please enter the first number (0-9)");
num1 = input.nextInt();
//Asks user for an operation
System.out.println("Please enter the type of operation that you would like to perform");
operation = input.next().charAt(0);
//Asks user to input the second number
System.out.println("Please enter the second number (0-9)");
num2 = input.nextInt();
//Limits the numbers to the range of 0-9 
if(num1 > 9 || num2 > 9){
System.out.println("Invalid Digit!!");
System.exit(0);}
//An array that converts number into a string
String num[] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
switch(operation){
case '-': //Subtraction conversion
System.out.println(num[num1]+" minus "+num[num2] + " is " + (num1-num2));
break;
case '+':   //Addition conversion
System.out.println(num[num1]+" plus "+num[num2] + " is " + (num1+num2));
break;   
case '*':   //Multipication conversion
System.out.println(num[num1]+" multiplied by "+num[num2] + " is " + (num1*num2));
break;
case '/': //Division conversion
System.out.println(num[num1]+" divided by "+num[num2] + " is " + (num1/num2));
break;
case '^':   //Exponentiation conversion
if(num2 == 0){ //checks to see if the second number entered is 0
System.out.println("Error: Cannot divide by Zero"); //Divide by Zero error message
break;}
System.out.println(num[num1]+" to the power of "+num[num2] + " is " + Math.pow(num1,num2));
break;
default:
System.out.println("Error: Invalid Operation Entered"); }
}
}

Its very simple, I think you are getting confused. Consider following points:

• You have original numbers saved in num1 and num2, so if you want to show the original numbers in integer form, then just use num1 instead of num[num1]
• You are checking for zero division when finding exponent. You should shift this check to division case.

Replace your switch like this:

switch(operation){

	case '-': //Subtraction conversion
		System.out.println(num[num1]+" minus "+num[num2] + " is " + (num1-num2));
		System.out.println(num1+" - "+num2 + " = " + (num1-num2));
		break;

	case '+':   //Addition conversion
		System.out.println(num[num1]+" plus "+num[num2] + " is " + (num1+num2));
		System.out.println(num1+" + "+num2 + " = " + (num1+num2));
		break;   

	case '*':   //Multipication conversion
		System.out.println(num[num1]+" multiplied by "+num[num2] + " is " + (num1*num2));
		System.out.println(num1+" * "+num2 + " = " + (num1*num2));
		break;

	case '/': //Division conversion
		if(num2 == 0){ //checks to see if the second number entered is 0

			System.out.println("Error: Cannot divide by Zero"); //Divide by Zero error message
			break;
		}
		System.out.println(num[num1]+" divided by "+num[num2] + " is " + (num1/num2));
		System.out.println(num1+" / "+num2 + " = " + (num1/num2));
		break;

	case '^':   //Exponentiation conversion
		System.out.println(num[num1]+" to the power of "+num[num2] + " is " + Math.pow(num1,num2));
		System.out.println(num1+" ^ "+num2 + " = " + Math.pow(num1,num2));
		break;

	default:
		System.out.println("Error: Invalid Operation Entered"); 
}

See if the below print statements helps

case '-': //Subtraction conversion
System.out.println(num[num1]+" minus "+num[num2] + " is " + (num1-num2));
System.out.println(num1+" "+operation + "  "+num2+ "="+(num1 - num2));
break;
case '+':   //Addition conversion
System.out.println(num[num1]+" plus "+num[num2] + " is " + (num1+num2));
System.out.println(num1+" "+operation + "  "+num2+ "="+(num1 + num2));	
break;

is it this what you are looking for? for example for 9 + 9 your output will be:

> nine plus nine is 18<br> 9 + 9 = 18

import java.util.Scanner;
public class Project {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
char operation;
int num1, num2;
//Asks for user to input first number
System.out.println("Please enter the first number (0-9)");
num1 = input.nextInt();
//Asks user for an operation
System.out.println("Please enter the type of operation that you would like to perform");
operation = input.next().charAt(0);
//Asks user to input the second number
System.out.println("Please enter the second number (0-9)");
num2 = input.nextInt();
//Limits the numbers to the range of 0-9 
if(num1 > 9 || num2 > 9){
System.out.println("Invalid Digit!!");
System.exit(0);}
//An array that converts number into a string
String num[] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
switch(operation){
case '-': //Subtraction conversion
System.out.println(num[num1]+" minus "+num[num2] + " is " + (num1-num2));
System.out.println(num1+" "+operation + "  "+num2+ " = "+(num1 - num2)); 
break;
case '+':   //Addition conversion
System.out.println(num[num1]+" plus "+num[num2] + " is " + (num1+num2));
System.out.println(num1+" "+operation + "  "+num2+ " = "+(num1 + num2)); 
break;   
case '*':   //Multipication conversion
System.out.println(num[num1]+" multiplied by "+num[num2] + " is " + (num1*num2));
System.out.println(num1+" "+operation + "  "+num2+ " = "+(num1 * num2)); 
break;
case '/': //Division conversion
System.out.println(num[num1]+" divided by "+num[num2] + " is " + (num1/num2));
System.out.println(num1+" "+operation + "  "+num2+ " = "+(num1 / num2)); 
break;
case '^':   //Exponentiation conversion
if(num2 == 0){ //checks to see if the second number entered is 0
System.out.println("Error: Cannot divide by Zero"); //Divide by Zero error message
break;}
System.out.println(num[num1]+" to the power of "+num[num2] + " is " + Math.pow(num1,num2));
System.out.println(num1+" "+operation + "  "+num2+ " = "+(Math.pow(num1,num2))); 
break;
default:
System.out.println("Error: Invalid Operation Entered"); }
}
}