gui problems

[jonathan childs]

hello all i have a problem with a gui program i have created.

 
import java.io.*; // for file writing part of assignment
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import java.util.*;
 
public class Marina implements ActionListener
{
JButton exit = new JButton("exit");
String timearrive, timeleave;
JButton enter = new JButton("submit button");
String[] priceStrings = { "Hour", "Daily", "Weekly", "Monthly", "Annual" };
JTextField cname = new JTextField(10);
JTextField clength = new JTextField(10);
    private JComboBox pricerate;
 

//This is a Graphical User Interface built in a Java application for the
//java revisited courrsework
 

    public Marina(){
 
JFrame Marina = new JFrame();
 
        //I am now using panels display labels, Buttons etc which will be used to create the gui inerface
 
JLabel welcomelabel = new JLabel("please enter your details below");
welcomelabel.setPreferredSize(new Dimension(175,100));
welcomelabel.setForeground(Color.red);
 
JPanel FirstPanel = new JPanel();
FirstPanel.add(welcomelabel);
 
JLabel label1 = new JLabel("Full Name");
label1.setPreferredSize(new Dimension(175,100));
label1.setForeground(Color.red);
 
JLabel label2 = new JLabel("Length of yatch");
label2.setPreferredSize(new Dimension(175,100));
label2.setForeground(Color.red);
 
JLabel label3 = new JLabel("Rate you would like");
label3.setPreferredSize(new Dimension(175,100));
label3.setForeground(Color.red);
 
JLabel label4 = new JLabel("Price Rates available");
label4.setPreferredSize(new Dimension(175,100));
label4.setForeground(Color.red);
 
JLabel label5 = new JLabel("Hourly Rate �0.50");
label5.setPreferredSize(new Dimension(175,100));
label5.setForeground(Color.red);
 
JLabel label6 = new JLabel("Daily Rate �1.00");
label6.setPreferredSize(new Dimension(175,100));
label6.setForeground(Color.red);
 
JLabel label7 = new JLabel("Weekly Rate �6.30");
label7.setPreferredSize(new Dimension(175,100));
label7.setForeground(Color.red);
 
JLabel label8 = new JLabel("Monthly Rate �19.00");
label8.setPreferredSize(new Dimension(175,100));
label8.setForeground(Color.red);
 
JLabel label9 = new JLabel("Annual Rate �132.00");
label9.setPreferredSize(new Dimension(175,100));
label9.setForeground(Color.red);
 
enter.addActionListener(this);
 
exit.addActionListener(this);
 
cname.addActionListener(this);
 
clength.addActionListener(this);
 
pricerate = new JComboBox(priceStrings);
pricerate.setSelectedIndex(1);
pricerate.addActionListener(this);
 
JPanel SecondPanel = new JPanel();
SecondPanel.add(label1);
SecondPanel.add(cname);
SecondPanel.add(label2);
SecondPanel.add(clength);
SecondPanel.add(label3);
SecondPanel.add(pricerate);
SecondPanel.add(exit);
SecondPanel.add(enter);
 
JPanel ThirdPanel = new JPanel();
ThirdPanel.add(label4);
ThirdPanel.add(label5);
ThirdPanel.add(label6);
ThirdPanel.add(label7);
ThirdPanel.add(label8);
ThirdPanel.add(label9);
 
JPanel FourthPanel = new JPanel();
 
// add boat image or something here if got time
 
JPanel FifthPanel = new JPanel();;
 
// add boat image or something here if got time
 

 
//i am now going to add the panels to the frame so all the labels and
//textfields etc are displayed
 
Marina.getContentPane().add(FirstPanel, BorderLayout.NORTH);
Marina.getContentPane().add(SecondPanel, BorderLayout.CENTER);
Marina.getContentPane().add(ThirdPanel, BorderLayout.WEST);
Marina.getContentPane().add(FourthPanel, BorderLayout.EAST);
Marina.getContentPane().add(FifthPanel, BorderLayout.SOUTH);
 
Marina.pack();
Marina.setVisible(true);
 
    }
 
    public void actionPerformed(ActionEvent e)
 
    {
 

//if command for when the user wants an hourly rate
     if ( e.getSource() == exit ) {
        System.exit(0); //still not working find out why
 }
 
 //got to edit so if user presses button then something happens
 
 else if ( e.getSource() == enter ) {
 
 if (((String)pricerate.getSelectedItem()).equals("hour")) {
 
timearrive = JOptionPane.showInputDialog("please enter time you wish to enter the marina");
 
timeleave = JOptionPane.showInputDialog(" please enter time you wish to leave the marina");
 
//gonna use the scanner now to put input into cdetails text file
 
String name = cname.getText();
 
int length = Integer.parseInt(length.getText());
 
String price.getSelectedItem(length,getText());
 
//Strings to be edited so time customers arrives and leaves can be stored in file
 
String arrival =
 
String leave =
 
JOptionPane.showMessageDialog(null,"Thank you for your custom and will contact you shortly to confirm your booking");
 
//import a scanner class here
 
}
}
 
// a file writer to be inserted later to write customer details into the program
 
//I have imported a sperate class into this class containing the code for the filewirting process
 
//if user gives one of the other rates
 
 else
 
{
 
//import price class here
 

JOptionPane.showMessageDialog(null, "Thank you for your custom we have stored your details and will contact you shortly to confirm your booking");
 
}
// import a scanner class here
 
//I have improted a sperate class into this class containing the code for the filewirting process
 
}
 
    //the main method for my program
 

    public static void main(String[] args) throws IOException {
 
//I have created the gui
 
new Marina();
}
}
 

at the moment a gui is displaying but changes have been made since then.

the main things i want to do are

my joption panes show up when i change options on my jcombobox but i want them to show up only when i press the submit button. the command i have wrote to try and do this is in my actionperformed method.

i have created strings called arrival and leave from which i wish to get the text entered into the input joption panes timearrive and timeleave but i am unsure of the command needed to be written to do this

also i have this other class ( i would use a scanner but have been told to use a filweriter and been given example code to help me create the class) which i want to write the strings etc into a document i have created called cdetails.txt but currently has problems. i plan to put this class into my program as shown as above later on when correct

import java.util.*;
import java.io.*;
 
public class WriteToFile2 {
 
String name, price, arrival, leave;
int length;
 
public static void main(String args[]) {
try {
FileWriter fw = new FileWriter ("cdetails.txt");
BufferedWriter out = new BufferedWriter(fw);
// need to get a enter command or something working here out.write("");
out.write(name + "      " + length + "      " + price + "      " + arrival + "      " + leave + "      ");
}
catch (IOException e) {}
  }
}

[Suleman zia]

What are you trying to accomplish? its better if you make another class which have getter and setter methods for the flight. Once a user clicks on submit button i am assuming you would like to save it in a txt file. this can be done using the toString() method in your flight class.