Problem with this program

Question

I see this board is very young. Well I'm a high school freshman in a java programming class and i have a little problem with my homework.
My source code is:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.DecimalFormat;
public class DogsHumanAge extends JApplet
implements ActionListener
JTextField inputHumanyears, displayDogyears;
public void init()
JLabel labelHumanyears = new JLabel("Enter the dog's age in human years:",
SwingConstants.RIGHT);
inputHumanyears = new JTextField(5);
JLabel labelDogyears = new JLabel("Dogyears = ", SwingConstants.RIGHT);
displayDogyears = new JTextField(5);
displayDogyears.setEditable(false);
JButton go = new JButton("Compute age");
go.addActionListener(this);
Container c = getContentPane();
c.setBackground(Color.white);
JPanel p = new JPanel();
p.setLayout(new GridLayout(3, 2, 5, 5));
p.add(labelHumanyears);
p.add(inputHumanyears);
p.add(labelDogyears);
p.add(displayDogyears);
c.add(p, BorderLayout.CENTER);
c.add(go, BorderLayout.SOUTH);
public void actionPerformed(ActionEvent e)
int Humanyears = Integer.parseInt(inputHumanyears.getText());
double Dogyears = calculateDogyears(Humanyears);
DecimalFormat df = new DecimalFormat("00.0");
displayDogyears.setText(df.format(Dogyears));
private double calculateDogyears(int Humanyears, int Dogyears)
return 13 + (int)(16.0 / 3.0 * (Dogyears - 1));
The error message i get is:
DogsHumanAge.java:42: calculateDogyears(int, int) cannot be applied to (int)
double Dogyears = calulateDogyears(Humanyears);
The intent of this program is to calculate the number of dog years from the given human years that is inputted into the input box.

Answer 1

Ok I got the solution. A friend helped me out. I had to make a few minor changes. Now the program looks like:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.DecimalFormat;
public class DogsHumanAge extends JApplet
implements ActionListener
JTextField inputDogYears, displayHumanYears;
public void init()
JLabel labelDogYears = new JLabel("Enter the dog's age in dog years:",
SwingConstants.RIGHT);
inputDogYears = new JTextField(5);
JLabel labelHumanYears = new JLabel("Human years = ", SwingConstants.RIGHT);
displayHumanYears = new JTextField(5);
displayHumanYears.setEditable(false);
JButton go = new JButton("Compute age");
go.addActionListener(this);
Container c = getContentPane();
c.setBackground(Color.white);
JPanel p = new JPanel();
p.setLayout(new GridLayout(3, 2, 5, 5));
p.add(labelDogYears);
p.add(inputDogYears);
p.add(labelHumanYears);
p.add(displayHumanYears);
c.add(p, BorderLayout.CENTER);
c.add(go, BorderLayout.SOUTH);
public void actionPerformed(ActionEvent e)
int dogYears = Integer.parseInt(inputDogYears.getText());
double humanYears = calculateHumanYears(dogYears);
DecimalFormat df = new DecimalFormat("00.0");
displayHumanYears.setText(df.format(humanYears));
private double calculateHumanYears(int dogYears)
return 13 + (int)(16.0 / 3.0 * (dogYears - 1));
Thanks to all that helped me!