Need a tad of help [modified]

TannerB

I've got this here code I just started today for an assigment, it is all working (so I'm not asking you to do it for me :P). What this code does is it considers any @ to be a backspace and deletes the character before it. I was supposed to use indexOf() and substring() but I thought using regular expressions would be simpler, and a learning experience at the same time. I think my problem right now is that I have stared at it for too long. What I want is for the loop in main to be ran atleast once but it seems weird to have the while(checkForError(input)); ran and then have it ran again in the method fixErrors. Any thoughts on what I could do to fix this would be welcome. Other comments and critiques are always welcome. Thanks, Tanner EDIT: Update at bottom.

import javax.swing.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;

public class bruce_tanner_A3Q3
{
public static void main(String [] args)
{
String input;
do
{
input = getString("Enter a string");
printOutput(fixErrors(input));
}while(checkForError(input));
}

//Returns true if specified string has an error ('@' in it) and false
//if it does not.
public static boolean checkForError(String input)
{
	Pattern pattern = Pattern.compile("@");
	Matcher matcher = pattern.matcher(input);

	return matcher.find();
}

//Prompts the user for a string with the specified input
//Returns the input string
public static String getString(String input)
{
	String tempString = JOptionPane.showInputDialog(input);
	return tempString;
}

//Prints the specified message
public static void printOutput(String tempString)
{
	System.out.println(tempString);
}

//Fixes any errors in the input string
public static String fixErrors(String tempString)
{
	if(checkForError(tempString))
	{
		Pattern pattern = Pattern.compile("\[^@\]\[@?+\]");
		Matcher matcher = pattern.matcher(tempString);

		while(matcher.find())
		{
			tempString = matcher.replaceAll("");
			matcher = pattern.matcher(tempString);
		}

		pattern = Pattern.compile("@");				//This block gets rid of any extra @'s left over.
		matcher = pattern.matcher(tempString);
		tempString = matcher.replaceAll("");

		return tempString;
	}
	return "This string is error free";
}

}

I'm not sure whether this was a flash of brilliance or not ;) but it works. New main code:

public static void main(String [] args)
{
String input; //The main