Java SE (Java Platform, Standard Edition)

I am trying to validate percentage value from JformattedTextField. I am using Regular Expression to validate the input. I am setting regex in JFormattedTextField to validate input while user is typing itself.
i.e I should restrict that user should not type more than 100.
Regex what i am currently using is

String                  m_strPercentageFormat    = "[0-9]{0,2}\\.{0,1}[0-9]{0,2}";
JFormattedTextField percentTextField = new JFormattedTextField();
percentTextField.setDocument(new ValidateTextComponent(m_strPercentageFormat )); 

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;

import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;

public class ValidateTextComponent extends PlainDocument
{

    private String  m_strPattern;
    private Pattern m_Pattern;
    private Matcher m_Matcher;
    private String  m_strComponentText;

      public ValidateTextComponent(String strPattern)
    {
        super();
        this.m_strPattern = strPattern;
        try
        {
            m_Pattern = Pattern.compile(m_strPattern);
        }
        catch (Exception e)
        {
            int numReaders = 0;
            throw new PatternSyntaxException("Check the pattern", strPattern,
                                             numReaders);
        }
    }

        public void insertString(int iOffSet, String strChar, AttributeSet attSet)
                                                                              throws BadLocationException
    {
        String strCharUpper = strChar.toUpperCase();
        m_strComponentText = getText(0, iOffSet) +strCharUpper;
        m_Matcher = m_Pattern.matcher(m_strComponentText);
        if (m_Matcher.matches())
        {
            super.insertString(iOffSet, strCharUpper, attSet);
        }
        else
        {
            //TODO Toolkit.getDefaultToolkit().beep();
        }
    }
}

The problem is
1. It is allowing to enter more than 100

Message was edited by:
sathiq