[SOLVED] Using dialog boxes and switch statements question

[hungdukie]

I'm a newb to Java and doing my best to learn on my own, without much help but the book I have is tough to figure out. If anyone could help me out I would surely appreciate it. I am doing a Lab exercise where I am expected to write a program to display a dialog box to the user asking what their choice of three models of televisions will be. They are to enter the model number: 100, 200, or 300. I am to write a switch structure that will, based on their selection, display in a dialog box their choice along with the feature set and price of the model they chose. I have started my code but I checked after the first case to see how it would compile and I am getting the following message:

Tvs.java:31: cannot find symbol
symbol : variable output
location: class Tvs
output.Str = "You chose model " + model + "TV with these features:" + "\n"

I am not sure why I am getting this message unless I am not declaring a variable that I'm supposed to, but I really don't know how I should declare one for the output string.
Here is my code:

import java.util.*;
import java.io.*;
import javax.swing.JOptionPane;

public class Tvs
{
public static void main(String[] args)
{

String inputStr;
String outputStr;
int model;
inputStr = JOptionPane.showInputDialog
			  ("This program asks the user to enter a television model number." +"\n"	
			  + "The description of the model chosen will be displayed" + "\n"
			  + "\n"
			  + "\n"
			  + "Please enter the model chosen" + "\n"
			  + "Model 100 comes with remote control, timer," + "\n"
			  + "and stereo sound and costs $1000" + "\n"
			  + "Model 200 come with all features of model 100" + "\n"
			  + "and picture-in-picture, and costs $1200" + "\n"
			  + "Model 300 comes with all features of model 200 and" + "\n"
			  + "HDTV, flat screen, 16x9 aspect ratio and costs $2400" + "\n");


			  
			  switch (model)
			  {
			  case 100:
			  	output.Str = "You chose model " + model + "TV with these features:" + "\n"
				+ "Remote control, timer, and stereo sound" + "\n"
				+ "Your price will be $1000.00" + "\n";
JOptionPane.showMessageDialog(null, outputStr,
					   "Television Selection",
						JOptionPane.INFORMATION_MESSAGE);
			   case 200: 					
				} 
			  }
			  }

[serjant]

The output variable was not initialized ,you didn't declare it at all.
instead of this

output.Str = "You chose model " + model + "TV with these features:" + "\n"
				+ "Remote control, timer, and stereo sound" + "\n"
				+ "Your price will be $1000.00" + "\n";

type this

outputStr = "You chose model " + model + "TV with these features:" + "\n"
				+ "Remote control, timer, and stereo sound" + "\n"
				+ "Your price will be $1000.00" + "\n";

[hungdukie]

Yes, I figured out that that was the problem. I declared and initialized the variable and voila! It compiles and runs like ti is supposed to. If I did something incorrectly I would appreciate any feedback you all might have.
Thanks.
I will post my code in the hopes that it may help someone else:

import java.util.*;
import java.io.*;
import javax.swing.JOptionPane;

public class Tvs
{
public static void main(String[] args)
{

String inputStr;
String outputStr;
int model;
inputStr = JOptionPane.showInputDialog
			  ("This program asks the user to enter a television model number." +"\n"	
			  + "The description of the model chosen will be displayed" + "\n"
			  + "\n"
			  + "\n"
			  + "Please enter the model chosen" + "\n"
			  + "Model 100 comes with remote control, timer," + "\n"
			  + "and stereo sound and costs $1000" + "\n"
			  + "Model 200 come with all features of model 100" + "\n"
			  + "and picture-in-picture, and costs $1200" + "\n"
			  + "Model 300 comes with all features of model 200 and" + "\n"
			  + "HDTV, flat screen, 16x9 aspect ratio and costs $2400" + "\n");
			  model = Integer.parseInt(inputStr);




			  
			  switch (model)
			  {
			  case 100:
			  	outputStr = "You chose model " + model + " TV with these features:" + "\n"
				+ "Remote control, timer, and stereo sound" + "\n"
				+ "Your price will be $1000.00" + "\n";
JOptionPane.showMessageDialog(null, outputStr,
					   "Television Selection",
						JOptionPane.INFORMATION_MESSAGE);
						break;
			   case 200:
			  	outputStr = "You chose model " + model + " TV with these features:" + "\n"
				+ "Remote control, timer, stereo sound and picture-in-picture" + "\n"
				+ "Your price will be $1200.00" + "\n";
JOptionPane.showMessageDialog(null, outputStr,
					   "Television Selection",
						JOptionPane.INFORMATION_MESSAGE);
						break;
				case 300:
				 outputStr = "You chose model " + model + " TV with these features:" + "\n"
				+ "HDTV, flat screen, 16x9 aspect ratio" + "\n"
				+ "picture-in-picture,"  + "\n"
				+ "remote control, timer, and stereo sound" + "\n"
				+ "Your price will be $2400.00" + "\n";
JOptionPane.showMessageDialog(null, outputStr,
					   "Television Selection",
						JOptionPane.INFORMATION_MESSAGE);
						break;				
 					
				} 
			  }
			  }