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JavaJunkie · Guest

Hello all, I am taking my second java class and I am tried everything to get my program to compile correctly and keep getting error messages. The program is supposed to display a GUI mortgage where the user can input a principal amount, an interest rate, and hit the calculate button to display the monthly payment. Please help me.. I keep getting the same error over and over(in 6 line of code).. Any help or advice and feedback would be appreciated. Thanks.

Here is what I have so far.

/*
* Written By:
* Date:3/31/2004
* Description: Mortgage Calculator program
* Filename: Mortgage.java

PDL
//* Class: Mortgage
//* Parent: Mortgage Class
//* Attributes: A, I, R, T, P
//* Methods:
//* Design
//* This program will calculates and return a monthly mortgage payment based on user input of
//* principal amount, interest rate and term of loan.
//* The class also has public methods for calculating the amount,
//*
*/

/* establish links to java libraries*/

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.*;
import javax.swing.border.*;

public class Mortgage extends JFrame
{

// declare all the graphic objects
Font headfont = new Font("TimesRoman", Font.PLAIN, 2 Cool

;
Font basefont = new Font("TimesRomain", Font.PLAIN, 16);
Font messagefont = new Font("TimesRoman", Font.BOLD, 20);
TextField textPrincipal = new TextField(10);
TextField textInterest = new TextField(10);
TextField textYears = new TextField(10);
TextField textPayment = new TextField(10);
CheckboxGroup groupInt = new CheckboxGroup();
Checkbox intmodeAnnual = new Checkbox("Annual Interest",groupInt,true);
Checkbox intmodeMonth = new Checkbox("Monthly Interest",groupInt,false);

// declare user buttons
JButton calcButton = new JButton("Calculate");
JButton exitButton = new JButton("Exit");
JButton resetbutton = new JButton("RESET");
JLabel info = new JLabel("Enter Principal, Interest, and Years.");
short modalDivisor = 12;

public Mortgage()
{

// declare JFrame size

setTitle("Mortgage Calculator Program");
setSize(680, 610);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container pane = getContentPane();
JPanel panel = new JPanel(new FlowLayout()); // determines the size and position of each component added to this panel//
panel.setFont(headfont);
pane.add(calcButton);
pane.add(exitButton);
pane.add(resetbutton);
JPanel p = new JPanel(new BorderLayout());
JPanel panelBody = new JPanel();
panelBody.setFont(basefont);
panelBody.setLayout( new GridLayout(5,2,10,10) );
panelBody.add( new Label("Principal") );
panelBody.add(textPrincipal);
panelBody.add( new Label("Modal Interest") );
panelBody.add(textInterest);
panelBody.add( new Label("Years") );
panelBody.add(textYears);
panelBody.add( new Label(" ") );
panelBody.add( new Label(" ") );
panelBody.add( new Label("Mortgage Payment") );
textPayment.setEditable( false );
panelBody.add(textPayment);
add(panelBody,BorderLayout.CENTER);

Panel panelRadio = new Panel();
panelRadio.setFont(basefont);
panelRadio.setLayout( new GridLayout(4,1,5,5) );
panelRadio.add(intmodeAnnual);
panelRadio.add(intmodeMonth);
panelRadio.add( new Label(" ") );
panelRadio.add( new Label(" ") );
add(panelRadio,BorderLayout.WEST);

Panel panelButtons = new Panel();
panelButtons.setFont(basefont);
panelButtons.setLayout( new GridLayout(4,1,10,20) );
panelButtons.add( new Label(" ") );
panelButtons.add(Calculate);
panelButtons.add(JbuttonExit);
panelButtons.add( new Label(" ") );
panelButtons.add(buttonReset);
add(panelButtons,BorderLayout.EAST);

Panel panelFooter = new Panel();
panelFooter.setFont(messagefont);
panelFooter.setForeground(Color.red);
panelFooter.setLayout( new FlowLayout(FlowLayout.CENTER,10,10) );
panelFooter.add(labelMessage);
add(panelFooter,BorderLayout.SOUTH);

// action listeners for buttons
mortgage.addActionListener(this);
reset.addActionListener(this);

}
}// EOF

Java

Christophe Vanfleteren · Guest

JavaJunkie wrote:

Alex Hunsley · Guest

JavaJunkie wrote: