Newbie needs help on compiling error

Question

I'm reading java 2 programming for dummies, but can't get this example working. I get an error on line 4, but when I remove 'public' from in front of 'class', Iexplore tells me I need a public constructor. I also get errors on line 94 and 98 where the compilator says that the java.awt.Component has been deprecated. I have no clue what that means..
Please help me! I'm stuck...
Here is my code:
/*line 0*/
import java.applet.Applet;
import java.awt.*;
public class PixApplet extends Applet{
     public void init() {
          Rectgl r = new Rectgl(10,5,Color.red);
          Square s = new Square(10,Color.blue);
          Circle c = new Circle(20,Color.yellow);
          Square s2 = new Square(40,Color.green);
          add(r);
          add(s);
          add(c);
          add(s2);
          add(new PixLabel(r));
          add(new PixLabel(s));
          add(new PixLabel(c));
          add(new PixLabel(s2));
/*Rectgl*/
class Rectgl extends Pix {
     /*Constructor*/
     public Rectgl(int width, int height, Color c) {
          myDimension.width = width;
          myDimension.height = height;
          setColor(c);
     /*Draw shape*/
     public void Paint(Graphics g) {
          g.fillRect(0,0,myDimension.width,myDimension.height);
     /*Return area*/
     public double getArea() {
          return (myDimension.width * myDimension.height);
     /*Return perimeter */
     public double getPerimeter() {
          return (myDimension.width + myDimension.height) * 2;
     /*Return kind of shape*/
     public String getKind() {
          return "Rectangle";
/*Square*/
class Square extends Rectgl {
     /*Constructor*/
     public Square(int side,Color c) {
          super(side,side,c);
     /*Return kind of shape*/
     public String getKind() {
          return "Square";
abstract class Pix extends Canvas {
     Dimension myDimension = new Dimension();
     /*Constructor*/
     public void Pix() {
     /*Set object's forground color*/
     public void setColor(Color c) {
          setForeground(c);
     public void paint(Graphics g) {
     public double getArea() {
          return 0;
     public double getPerimeter() {
          return 0;
     public String getKind() {
          return "unknown shape";
/*line 93*/
     public Dimension preferredSize() {
          return myDimension;
/*line 97*/
     public Dimension minimumSize() {
          return myDimension;
class Circle extends Pix {
     private int myRadius;
     /*Constructor*/
     public Circle(int radius, Color c) {
          myRadius = radius;
          setColor(c);
          myDimension.height = myDimension.width = 2 * radius;
     /*Draw shape*/
     public void paint(Graphics g) {
          g.fillArc(0,0,(2 * myRadius),(2 * myRadius),0,360);
     /*Return area*/
     public double getArea() {
          return (Math.PI * (myRadius * myRadius));
     /*Return perimeter*/
     public double getPerimeter() {
          return 2 * Math.PI * myRadius;
     /*Return kind of shape*/
     public String getKind() {
          return "Circle";
class PixLabel extends TextArea {
     /*Constructor*/
     public PixLabel(Pix s) {
          super( "I am a " + s.getKind() + "\nMy perimeter is " + Double.toString(s.getPerimeter()) + "\nMy area is " + Double.toString(s.getArea()),3,15,SCROLLBARS_NONE);
}

Answer 1

OK. You do not need to worry too much about the deprecated messages. They are only warnings and will not stop the program compiling.
What is the name of the java file that your code is in. It should be PixApplet.java
How are you compiling it, something like
javac *.java or javac PixApplet.java
What is the error you get when you try to compile