Account Program in Applet and in HTML

Account Program

Java Applet and HTML

Handles Account, Calculating Summary of Accounts of multiple years.

Connecting program with HTML

Code:

//Import all required Packages

                import javax.swing.*;

import java.awt.*;

import java.text.*;

import java.awt.event.*;

                public class account extends JApplet implements ActionListener {

                                JPanel q;

                                JPanel w;

                                JPanel e;

                                double Loan;

                                double pRate;

                                double number;

                                int month = 0;

                                double rBalance = 0;

                                double iPayment = 0;

                                double pPaid = 0;

                               

                                JLabel lAmount;

                                JLabel lInterest;

                                JLabel lTerm;

                                JTextField tAmount;

                                JLabel lHeader;

                                JTextField tTerm;

                                JTextField tInterest;

                                JTextArea tResults;

                                JScrollPane tPane;

               

                                JButton calculate;

                                public void init()

                                {

                                q = new JPanel();

                                e = new JPanel(new GridLayout(1,3,75,1));

                                w = new JPanel(new BorderLayout());

                                lAmount = new JLabel("loan amount: $", JLabel.LEFT);

                                tAmount = new JTextField(10);

                                lInterest = new JLabel("Annual Percentage Rate %", JLabel.LEFT);

                                tInterest = new JTextField(6);

                                lTerm = new JLabel("Term in Years", JLabel.LEFT);

                                tTerm = new JTextField(6);

               

                                String str = "                             ";

                                lHeader = new JLabel("Payment #"+str+"Monthly Amount:"+str+" Interest:"+str+"Principle"+str+"Balance:");

                                tResults = new JTextArea(10, 53);

                                tPane = new JScrollPane(tResults);

                                calculate = new JButton("Calculate");

                                setSize(700, 250);

                                q.add(lAmount);

                                q.add(tAmount);

                                q.add(lInterest);

                                q.add(tInterest);

                                q.add(lTerm);

                                q.add(tTerm);

                                tPane.setPreferredSize(new Dimension(610,200));

                                w.add(lHeader,BorderLayout.NORTH);

                                w.add(tPane,BorderLayout.CENTER);

                                calculate.addActionListener(this);

                               

                                e.add(calculate);

                                getContentPane().add(q,BorderLayout.NORTH);

                                getContentPane().add(w,BorderLayout.CENTER);

                                getContentPane().add(e,BorderLayout.SOUTH);

                                }

                                public void actionPerformed(ActionEvent e)

                                {

                                                if (e.getSource() == calculate)

                                                {

                                                                double balance = 0;

                                                                double monthPayment=0;

                                                                Loan = Double.parseDouble(tAmount.getText());

                                                                pRate = Double.parseDouble(tInterest.getText());

                                                                number = Double.parseDouble(tTerm.getText());

                                                               

                                                                NumberFormat fmt = NumberFormat.getCurrencyInstance();

                                                                monthPayment = MonthlyPayment();

                                               

                                                                balance = Loan;

                                                                month = (int)number * 12;

                                                                for(int index = 1; index <= month ; index++)

                                                                                {

                                                                                iPayment = balance * (pRate * .01/12);

                                                                                pPaid = monthPayment - iPayment;

                                                                                rBalance = balance - pPaid;

                                                                                tResults.append(" " + index + "\t\t "+ fmt.format(monthPayment) + "\t\t"

                                                                                + fmt.format(iPayment) + "\t" +fmt.format(pPaid)+"\t\t" + fmt.format(rBalance) + "\n");

                                                                                balance = rBalance;

                                                                                }

                                                }

                                }

                                double MonthlyPayment()

                                {

                                                return (Loan * ((1 + (pRate*.01)/12)-1) / (1-(Math.pow((1+(pRate*.01)/12),-(number*12)))));

                                }

                                public void paint(Graphics g){

                                                super.paintComponents(g);

                                               

                                }             

                }

Program Screenshots 

Program Screenshots

Program Screenshots

Program Screenshots