// RainfallGUI2.java - Provides a GUI interface to the RainfallStats class.

import javax._______________.*;
import java.awt.*;
import java.awt.event.*;

public class RainfallGUI2 _______________ JFrame {
    
    //================================================ my instance variables
    private RainfallStats _rainLogic;  // Keeps data, calculates statistics.
    
    private JTextField _averageTF      = new JTextField(4);
    private JTextField _numberTF       = new JTextField(4);
    private JTextArea  _rainfallDataTA = new JTextArea(5, 20);
    private JTextField _totalTF        = new JTextField(4);
    // End of variables declaration
    
    //============================================================= constructor
    public _______________() {
        //... Set up the model / logic
        _rainLogic = new RainfallStats(500);  // Room for 500 data points.
        
        JButton calcStatsBtn = new _______________("Calculate Statistics");
        calcStatsBtn._______________(new BtnListener());
        
        //============================================================= layout
        //... Result Panel
        JPanel resultPanel = new _______________();
        resultPanel._______________(new GridLayout(3, 2, 5, 5));
        resultPanel.add(new JLabel("Total"));
        resultPanel.add(_totalTF);
        resultPanel.add(new _______________("Number"));
        resultPanel.add(_numberTF);
        resultPanel.add(_______________ JLabel("Average"));