Adding Variables and using Switch

[notnumber6]

Hey guys, made a basic calculator, with the following code:

Code:

import java.lang.*;
import java.util.*;
import java.io.*;
import java.net.*;

public class CalcApp extends Object
{
	public static void main(String[] argStrings) throws Exception
	{
		Scanner calcInput = new Scanner (System.in);
		
		System.out.printf ("Please enter your first number\n");
		
		int firstInt = calcInput.nextInt();
		
		System.out.printf ("Please enter your second number\n");
		
		int secondInt = calcInput.nextInt();
		
		System.out.printf ("Your second number is " + secondInt + "\n");
		
		System.out.printf ("Your first number is " + firstInt + "\n");
		
		System.out.printf ("Please enter your operator (1 = +) (2 = -) (3= /) \n");
		
		int calcOperatorInput = calcInput.nextInt();

		switch (calcOperatorInput) 
		{
            case 1: 
						System.out.println("Your Operator is (+)");
						int calcAnswer = ( firstInt + secondInt );
						break;
            case 2:
						System.out.println("Your Operator is (-)");
						int calcAnswer = ( firstInt - secondInt );
						break;
            case 3: 
						System.out.println("Your Operator is (/)");
						int calcAnswer = ( firstInt / secondInt );
						break;
            default: 
						System.out.println("Sorry, You must enter a number beetween 1-3");
						break;
        }
		System.out.printf ("Your answer is"+ calcAnswer +"\n");
		
		
	}
}

Also we have the following error's

First of all calcAnswer is already defined, and also it cannot find symbol.

Thanks for the help

[JavaBean]

You define calcAnswer variable inside scope of cases (check braces. Outside those braces calcAnswer is undefined.)

[notnumber6]

Code:

import java.lang.*;
import java.util.*;
import java.io.*;
import java.net.*;

public class CalcApp extends Object
{
	public static void main(String[] argStrings) throws Exception
	{
		Scanner calcInput = new Scanner (System.in);
		
		System.out.printf ("Please enter your first number\n");
		
		int firstInt = calcInput.nextInt();
		
		System.out.printf ("Please enter your second number\n");
		
		int secondInt = calcInput.nextInt();
		
		System.out.printf ("Your second number is " + secondInt + "\n");
		
		System.out.printf ("Your first number is " + firstInt + "\n");
		
		System.out.printf ("Please enter your operator (1 = +) (2 = -) (3= /) \n");
		
		int calcAnswer = 1;
		
		int calcOperatorInput = calcInput.nextInt();

		switch (calcOperatorInput) 
		{
            case 1: 
						System.out.println("Your Operator is (+)");
						int calcAnswer = ( firstInt + secondInt );
						break;
            case 2:
						System.out.println("Your Operator is (-)");
						int calcAnswer = ( firstInt - secondInt );
						break;
            case 3: 
						System.out.println("Your Operator is (/)");
						int calcAnswer = ( firstInt / secondInt );
						break;
            default: 
						System.out.println("Sorry, You must enter a number beetween 1-3");
						break;
        }
		System.out.printf ("Your answer is"+ calcAnswer +"\n");
		
		
	}
}

Have changed it,1 error down! But having a little problem, it says that calcAnswer variable has already been set, any ideas?

[JavaBean]

Remove int before calcAnswer inside case scopes. You redefine same variable there. That is your error.

[notnumber6]

Java bean,

Legend, all working!

Also i couldnt have the answer variable set as a string, at the top... when i was also trying to use it as an INT