JApplet problems

[Rgfirefly24]

so i have the following code

Code:

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

public class lab5 extends JApplet implements ActionListener
{
		private lab5 invest = new lab5();
	private JFrame loan = new JFrame("Loan Calculator");
	private JButton btninvest = new JButton("Calculate your Investment");
	private JButton btnloan = new JButton("Loan Calculator");

	/*Initalize the applet*/
	public void init()
	{
		getContentPane().setLayout(new FlowLayout());
		getContentPane().add(btninvest);
		getContentPane().add(btnloan);
		btninvest.addActionListener(this);
		btnloan.addActionListener(this);
	}


 	public void actionPerformed(ActionEvent e)
 	{
		if (e.getSource() == btninvest)
		{
		  invest.setSize(300, 200);
		  invest.setTitle("Investment Calculator");
		  invest.setVisible(true);
		}
		else if (e.getSource() == btnloan)
		{
		  loan.setSize(300, 200);
		  LoanApplet applet = new LoanApplet();
		  loan.getContentPane().add(applet);
		  applet.init();
		  loan.setVisible(true);
		}
	  }

}

which returns these errors:

Quote:

H:\Advanced Java\Lab Work\Lab5\lab5.java:28: cannot find symbol
symbol : method setTitle(java.lang.String)
location: class lab5
invest.setTitle("Investment Calculator");
^
H:\Advanced Java\Lab Work\Lab5\lab5.java:34: cannot find symbol
symbol : class LoanApplet
location: class lab5
LoanApplet applet = new LoanApplet();
^
H:\Advanced Java\Lab Work\Lab5\lab5.java:34: cannot find symbol
symbol : class LoanApplet
location: class lab5
LoanApplet applet = new LoanApplet();
^
3 errors

Tool completed with exit code 1

and here is the LoanApplet:

Code:

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

public class LoanApplet extends JApplet implements ActionListener {
  // Declare and create text fields for interest rate
  // year, loan amount, monthly payment, and total payment
  private JTextField jtfAnnualInterestRate = new JTextField();
  private JTextField jtfNumberOfYears = new JTextField();
  private JTextField jtfLoanAmount = new JTextField();
  private JTextField jtfMonthlyPayment = new JTextField();
  private JTextField jtfTotalPayment = new JTextField();

  // Declare and create a Compute Payment button
  private JButton jbtComputeLoan = new JButton("Compute Payment");

  /** Initialize user interface */
  public void init() {
	// Set properties on the text fields
	jtfMonthlyPayment.setEditable(false);
	jtfTotalPayment.setEditable(false);

	// Right align text fields
	jtfAnnualInterestRate.setHorizontalAlignment(JTextField.RIGHT);
	jtfNumberOfYears.setHorizontalAlignment(JTextField.RIGHT);
	jtfLoanAmount.setHorizontalAlignment(JTextField.RIGHT);
	jtfMonthlyPayment.setHorizontalAlignment(JTextField.RIGHT);
	jtfTotalPayment.setHorizontalAlignment(JTextField.RIGHT);

	// Panel p1 to hold labels and text fields
	JPanel p1 = new JPanel(new GridLayout(5, 2));
	p1.add(new JLabel("Annual Interest Rate"));
	p1.add(jtfAnnualInterestRate);
	p1.add(new JLabel("Number of Years"));
	p1.add(jtfNumberOfYears);
	p1.add(new JLabel("Loan Amount"));
	p1.add(jtfLoanAmount);
	p1.add(new JLabel("Monthly Payment"));
	p1.add(jtfMonthlyPayment);
	p1.add(new JLabel("Total Payment"));
	p1.add(jtfTotalPayment);
	p1.setBorder(new
	  TitledBorder("Enter interest rate, year and loan amount"));

	// Panel p2 to hold the button
	JPanel p2 = new JPanel(new FlowLayout(FlowLayout.RIGHT));
	p2.add(jbtComputeLoan);

	// Add the components to the applet
	getContentPane().add(p1, BorderLayout.CENTER);
	getContentPane().add(p2, BorderLayout.SOUTH);

	// Register listener
	jbtComputeLoan.addActionListener(this);
  }

  /** Handle the Compute Payment button */
  public void actionPerformed(ActionEvent e) {
	if (e.getSource() == jbtComputeLoan) {
	  // Get values from text fields
	  double interest =
		Double.parseDouble(jtfAnnualInterestRate.getText());
	  int year =
		Integer.parseInt(jtfNumberOfYears.getText());
	  double loanAmount =
		Double.parseDouble(jtfLoanAmount.getText());

	  // Create a loan object
	  Loan loan = new Loan(interest, year, loanAmount);

	  // Display monthly payment and total payment
	  jtfMonthlyPayment.setText("" +
		(int)(loan.monthlyPayment() * 100) / 100.0);
	  jtfTotalPayment.setText("" +
		(int)(loan.totalPayment() * 100) / 100.0);
	}
  }

  public static void main(String[] args) {
	// Create a frame
	JFrame frame = new JFrame("Applet is in the frame");

	// Create an instance of the applet
	LoanApplet applet = new LoanApplet();

	// Add the applet to the frame
	frame.getContentPane().add(applet, BorderLayout.CENTER);

	// Invoke applet's init method
	applet.init();

	// Display the frame
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	frame.setSize(300, 300);
	frame.setVisible(true);
  }
}

i'm assuming it has something to do with my instantiation of the loanapplet but i'm not 100% sure

[Zosden]

Why are you creating a new lab05 inside the lab05 class that doesn't make any sense.

[Rgfirefly24]

Ok so your right lol, i have no idea about applets or anything of the sort. I changed it to read

private JFrame invest = new JFrame();

it loads now