problem with main

problem with main


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

public class YellowFace extends JApplet
{
public static final int FACE_DIAMETER = 200;
public static final int X_FACE = 100;
public static final int Y_FACE = 50;

public static final int EYE_WIDTH = 10;
public static final int EYE_HEIGHT = 20;
public static final int X_RIGHT_EYE = 155;
public static final int Y_RIGHT_EYE = 95;
public static final int X_LEFT_EYE = 230;
public static final int Y_LEFT_EYE = Y_RIGHT_EYE;

public static final int NOSE_DIAMETER = 10;
public static final int X_NOSE = 195;//Center of nose will be at 200
public static final int Y_NOSE = 135;

public static final int MOUTH_WIDTH = 100;
public static final int MOUTH_HEIGHT = 50;
public static final int X_MOUTH = 150;
public static final int Y_MOUTH = 175;
public static final int MOUTH_START_ANGLE = 180;
public static final int MOUTH_DEGREES_SHOWN = 180;

public void paint(Graphics canvas)
{
//Draw face circle:
canvas.setColor(Color.YELLOW);
canvas.fillOval(X_FACE, Y_FACE, FACE_DIAMETER, FACE_DIAMETER);
canvas.setColor(Color.BLACK);
canvas.drawOval(X_FACE, Y_FACE, FACE_DIAMETER, FACE_DIAMETER);
//Draw eyes:
canvas.setColor(Color.BLUE);
canvas.fillOval(X_RIGHT_EYE, Y_RIGHT_EYE, EYE_WIDTH, EYE_HEIGHT);
canvas.fillOval(X_LEFT_EYE, Y_LEFT_EYE, EYE_WIDTH, EYE_HEIGHT);
//Draw nose:
canvas.setColor(Color.BLACK);
canvas.fillOval(X_NOSE, Y_NOSE, NOSE_DIAMETER, NOSE_DIAMETER);
//Draw mouth:
canvas.setColor(Color.RED);
canvas.drawArc(X_MOUTH, Y_MOUTH, MOUTH_WIDTH, MOUTH_HEIGHT,
MOUTH_START_ANGLE, MOUTH_DEGREES_SHOWN);
}
}

i have copied this code from a book and i have a problem. when i compile it appears this message:
java.lang.NoSuchMethodError: main
Exception in thread "main" .
Should i put a main in another file? And how can i call this class?Thx a lot









View Answers

March 3, 2010 at 10:42 AM

Hi Friend,

This is an applet code and applet doesn't have main method therefore compile it and run it with html file.

applet.html:

<html>
<body>
<h1>Java Applet Demo</h1>
<applet code=YellowFace.class width=500 height=400>
</applet>
</body>
</html>

Thanks









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