Hi I am in need of some help for modifying my mortgage calculator program for my java class.
I am getting many errors as I dont know how to fix it. Can anyone point me in the right direction?
Thanks in advance.
Code:
//pos407
//9-16-2005
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JOptionPane; // import class JOptionPane
import java.text.DecimalFormat; // import class DecimalFormat
public class W2_tran extends JFrame implements ActionListener
{
static DecimalFormat decmat = new DecimalFormat("$#,##0.00");
FlowLayout flow = new FlowLayout();
JLabel amount1 = new JLabel("Amount: ");
JTextField amount = new JTextField(10);
JLabel rate1 = new JLabel("Rate: ");
JTextField rate = new JTextField(4);
JLabel term1 = new JLabel("Term: ");
JTextField term = new JTextField(4);
JComboBox mortgageBox = new JComboBox();
JLabel mortgageList = new JLabel("<html><font face='Tahoma' size='5'>Mortgage</font></html>");
JButton calcButton = new JButton("Calculate Total");
JButton exitButton = new JButton("Exit");
JButton reset = new JButton("Reset");
JLabel blankSpaces1 = new JLabel(" ");
JLabel blankSpaces2 = new JLabel(" ");
JLabel result = new JLabel("<html><h1>The total is </h1></html>");
JLabel sum = new JLabel("");
public W2_tran()
{
Container con = getContentPane();
con.setLayout(flow);// places components in a row
con.add(amount1);
con.add(amount);
con.add(rate1);
con.add(rate);
con.add(term1);
con.add(term);
con.add(calcButton);
con.add(blankSpaces1);
con.add(result);
con.add(sum);
mortgageBox.addItem("Mortage Inputs Above");
mortgageBox.addItem(" 7-year Mortgage at 5.35%");
mortgageBox.addItem("15-year Mortgage at 5.5%");
mortgageBox.addItem("30-year Mortgage at 5.75%");
con.add(blankSpaces2);
con.add(exitButton);
con.add(reset);
con.add(mortgageList);
con.add(mortgageBox);
amount.setBackground(Color.cyan);
rate.setBackground(Color.cyan);
term.setBackground(Color.cyan);
calcButton.setForeground(Color.red);
calcButton.setBackground(Color.yellow);
exitButton.setForeground(Color.black);
exitButton.setBackground(Color.yellow);
reset.setForeground(Color.black);
reset.setBackground(Color.yellow);
mortgageBox.addActionListener(this);
mortgageBox.setForeground(Color.white);
mortgageBox.setBackground(Color.black);
con.setBackground(Color.white);//sets the background color
calcButton.addActionListener(this);
exitButton.addActionListener(this);
reset.addActionListener(this);
}
public static void main(String[] args)
{
W2_tran cFrame = new W2_tran();
cFrame.setTitle("Mortgage Calculator");
cFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
cFrame.setSize(400,300);
cFrame.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
Object source = e.getSource();
if(source == calcButton)
{
try
{
String amount1 = amount.getText();
String rate1 = term.getText();
String term1 = rate.getText();
double a1 = Double.parseDouble(amount1);
double r1 = Double.parseDouble(rate1);
if(r1 == 0) getCleanScreen();
double t1 = Double.parseDouble(term1);
if(t1 == 0) getCleanScreen();
// formats numbers to display only two decimal places
// different decimal formats ensure $ sign & "0.00" print wherever needed
java.text.DecimalFormat dec = new java.text.DecimalFormat(",##0.00");
java.text.DecimalFormat doldec = new java.text.DecimalFormat("$,##0.00");
double mortgagefigure = getPayment(a1, r1, t1, 12);
double total = getFigure(mortgagefigure);
String output = "" + doldec.format(total);
sum.setText("<html><div align='center'><font face='Tahoma' size='5' color='blue'>"+output+"</font></div></html>");
}
catch (NumberFormatException error)
{
getCleanScreen();
}
}
else if (source == mortgageBox)
{
int sizeNum = mortgageBox.getSelectedIndex();
if (sizeNum == 0)
try
{
getCleanScreen();
}
catch (NumberFormatException error)
{
getCleanScreen();
}
else if (sizeNum == 1)
{
try
{
String amount1 = amount.getText();
double a1 = Double.parseDouble(amount1);
double r1 = 7;
double t1 = 5.35;
// formats numbers to display only two decimal places
// different decimal formats ensure $ sign & "0.00" print wherever needed
java.text.DecimalFormat dec = new java.text.DecimalFormat(",##0.00");
java.text.DecimalFormat doldec = new java.text.DecimalFormat("$,##0.00");
double mortgagefigure = getPayment(a1, r1, t1, 12);
double total = getFigure(mortgagefigure);
String output = "" + doldec.format(total);
rate.setText("");
term.setText("");
sum.setText("<html><div align='center'><font face='Tahoma' size='5' color='blue'>"+output+"</font></div></html>");
}
catch (NumberFormatException error)
{
getCleanScreen();
}
}
else if (sizeNum == 2)
{
try
{
String amount1 = amount.getText();
double a1 = Double.parseDouble(amount1);
double r1 = 15;
double t1 = 5.5;
// formats numbers to display only two decimal places
// different decimal formats ensure $ sign & "0.00" print wherever needed
java.text.DecimalFormat dec = new java.text.DecimalFormat(",##0.00");
java.text.DecimalFormat doldec = new java.text.DecimalFormat("$,##0.00");
double mortgagefigure = getPayment(a1, r1, t1, 12);
double total = getFigure(mortgagefigure);
String output = "" + doldec.format(total);
rate.setText("");
term.setText("");
sum.setText("<html><div align='center'><font face='Tahoma' size='5' color='blue'>"+output+"</font></div></html>");
}
catch (NumberFormatException error)
{
getCleanScreen();
}
}
else
{
try
{
String amount1 = amount.getText();
double a1 = Double.parseDouble(amount1);
double r1 = 30;
double t1 = 5.75;
// formats numbers to display only two decimal places
// different decimal formats ensure $ sign & "0.00" print wherever needed
java.text.DecimalFormat dec = new java.text.DecimalFormat(",##0.00");
java.text.DecimalFormat doldec = new java.text.DecimalFormat("$,##0.00");
double mortgagefigure = getPayment(a1, r1, t1, 12);
double total = getFigure(mortgagefigure);
String output = "" + doldec.format(total);
rate.setText("");
term.setText("");
sum.setText("<html><div align='center'><font face='Tahoma' size='5' color='blue'>"+output+"</font></div></html>");
}
catch (NumberFormatException error)
{
getCleanScreen();
}
}
}
else if(source == resetButton)
{
getCleanScreen();
}
else
{
// if the user clicks on the Exit button (source is Exit button)
System.exit(0);
}
}// end actionPerformed
}
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