Pos 407 Week 2

//Week2 Nicholas Zarnin

/*

Week 2: Mortgage Calculator

Programmer: Nicholas Zarnin

Date: June 11, 2006

Filename: Mortgage.java

Purpose: This program accepts input from a user for principal amount, term, and interest rate, and calculates the payment. This program allows users to enter new information, or exit the program

*/

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.util.Locale;

import java.text.*;

class Mortgage extends JFrame

implements ActionListener {

JButton Calculate;

JButton Reset;

// What the text box is.

JLabel loanLabel;

JLabel interestLabel;

JLabel yearsLabel;

JLabel paymentLabel;

//Where user Inputs Data, and results too!

JTextField loanTextbox;

JTextField interestTextbox;

JTextField yearsTextbox;

JTextField paymentTextbox;

JTextField paymentfield;

//Set the variables to 0, ready for input

double amount=0;

double years=0;

double interest=0;

double totalpayments=0;

double monthly_interest_rate=0;

double monthly_payment=0;

double totalcalc=0;

//Currency Information for regional formatting

NumberFormat curr = NumberFormat.getCurrencyInstance(Locale.US);

// This is where the form all comes together

public Mortgage (int width, int height)

{

this.setTitle ("Nick's Mortgage Calculator");

this.setResizable (true);

this.setSize (400, 400);

this.setLocationRelativeTo(null);

//This is how its going to close

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Container cPane = this.getContentPane();

cPane.setLayout (new GridLayout(0,2));

//The Calculate and reset botton

Calculate = new JButton ("Calculate");

Calculate.addActionListener (this);

cPane.add (Calculate);

Reset = new JButton("Reset");

Reset.addActionListener (this);

cPane.add (Reset);

//This is where I declare the Fields and the Labels for the GUI

loanLabel = new JLabel ("Loan Amount");

cPane.add (loanLabel);

loanTextbox = new JTextField ();

cPane.add (loanTextbox);

interestLabel = new JLabel ("Interest Rate");

cPane.add (interestLabel);

interestTextbox = new JTextField ();

cPane.add (interestTextbox);

yearsLabel = new JLabel ("# of Years");

cPane.add (yearsLabel);

yearsTextbox = new JTextField ();

cPane.add (yearsTextbox);

paymentLabel = new JLabel ("Monthly Payment");

cPane.add (paymentLabel);

paymentfield = new JTextField ();

cPane.add (paymentfield);

// Display the Java GUi

this.setVisible (true);

}

// This is where the process starts of taking information

public void actionPerformed (ActionEvent a)

...