Bouncing off the wall: Problems with passing/using pointers to classes

Question

I have a mostly completed "msPaint" (=assigment) program that is driving me nuts!!!
1. First shape you draw doesn't appear.
1.5 Draw a shape by clicking twice on Panel, can change shape, color, fill with what buttons you see.
2. Subsequently only the newest shape appears. Using System.println(); it appears to be drawing as many shapes as it has made, but it doesn't.
3. I owe much to anyone who helps me, here is complete code. Specifically will ask/reward you to reply to a diff link in which I have dukes, got no answer, and can't reallocate dukes. (=5)
Thank you very much.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Prog4 extends JApplet implements ActionListener
     //private MainPanel drawingpanel;
     private JPanel top;
     private JPanel left;
     private JPanel bottom;
     private JPanel bottomleft,bottommiddletop,bottommiddle,bottomright;
     //top buttons created
     private JButton first,next,previous,last,help;
     //bottom buttons created
     private JButton custom;
     private JButton white,gray,red,purple,blue,green,yellow,orange;
     private JButton black,darkgray,darkred,darkpurple,darkblue,darkgreen,darkyellow,darkorange;
     private JButton rect,oval,line,solid,hollow,erase;
     private CardLayout drawingscreens;
     private MyShape [] shapes=new MyShape[10];
     private MyShape newshape=new MyShape();     
     private Data information;//=new Data(newshape, shapes);
     private MyPanel temp;//=new MyPanel(information);
     private int thiscard;
     public int x,y;
     //Holder Variable to hold info about shape to be drawn
     int shape;
     int fill;
     int draw;
     int tx,ty,bx,by;
     public void init()
          Container window=getContentPane();
               window.setLayout(new FlowLayout(0,0,FlowLayout.LEFT));
               //Top Button Setup
               first=new JButton("First");
               first.addActionListener(this);
               first.setPreferredSize(new Dimension(100,40));
               next=new JButton("Next");
               next.addActionListener(this);
               next.setPreferredSize(new Dimension(100,40));
               previous=new JButton("Previous");
               previous.addActionListener(this);
               previous.setPreferredSize(new Dimension(100,40));
               last=new JButton("Last");
               last.addActionListener(this);
               last.setPreferredSize(new Dimension(100,40));
               help=new JButton("Help");
               help.addActionListener(this);
               help.setPreferredSize(new Dimension(100,40));
               //TOP PANEL SETUP
               top=new JPanel();
               top.setLayout(new FlowLayout(0,0,FlowLayout.LEFT));
               top.setPreferredSize(new Dimension(800,40));
               top.setOpaque(true);
               top.setBackground(Color.white);
               top.add(first);
               top.add(next);
               top.add(previous);
               top.add(last);
               top.add(help);
               window.add(top);
               //Left Buttons Setup
               rect=new JButton("Rectangle");
               rect.setPreferredSize(new Dimension(100,40));
               rect.addActionListener(this);
               oval=new JButton("Oval");
               oval.setPreferredSize(new Dimension(100,40));
               oval.addActionListener(this);
               line=new JButton("Line");
               line.setPreferredSize(new Dimension(100,40));
               line.addActionListener(this);
               solid=new JButton("Solid");
               solid.setPreferredSize(new Dimension(100,40));
               solid.addActionListener(this);
               hollow=new JButton("Hollow");
               hollow.setPreferredSize(new Dimension(100,40));
               hollow.addActionListener(this);
               erase=new JButton("Erase");
               erase.setPreferredSize(new Dimension(100,40));
               erase.addActionListener(this);
               //Left Panel Setup
               left=new JPanel();
               left.setLayout(new FlowLayout(0,0,FlowLayout.LEFT));
               left.setPreferredSize(new Dimension(200,600));     
               left.add(rect);
               left.add(oval);
               left.add(line);
               left.add(solid);
               left.add(hollow);
               left.add(erase);
               window.add(left);// FlowLayout.LEFT);
               //Middle Setup
               temp=new panel();
               temp.setPreferredSize(new Dimension(600,600));
               temp.setOpaque(true);
               temp.setBackground(Color.red);
               temp.addMouseListener(this);
               window.add(temp);
               //Panel Listener Initailization
               for(int i=0; i<shapes.length; i++)
                    shapes=new MyShape();
               information=new Data(newshape, shapes);
               temp=new MyPanel(information);
               Listener panelListener=new Listener(temp, newshape, information);
               //shapes
               window.add(temp);
               temp.addMouseListener(panelListener);
               //Bottom Buttons Setup
               int bsize=20; //Int for horz/vert size of buttons
               //Left Setup, creates a JPanel which displays the current color
               bottomleft=new JPanel();
               bottomleft.setPreferredSize(new Dimension(2*bsize,2*bsize));
               bottomleft.setLayout(new FlowLayout(0,0, FlowLayout.LEFT));
               bottomleft.setOpaque(true);
               //Middle Setup creates buttons for each pregenerated color in the top row
               black=new JButton();
               black.setPreferredSize(new Dimension(bsize,bsize));
               black.setOpaque(true);
               black.setBackground(new Color(0,0,0));
               black.addActionListener(this);
               darkgray=new JButton();
               darkgray.setPreferredSize(new Dimension(bsize,bsize));
               darkgray.setOpaque(true);
               darkgray.setBackground(new Color(70,70,70));
               darkgray.addActionListener(this);
               darkred=new JButton();
               darkred.setPreferredSize(new Dimension(bsize,bsize));
               darkred.setOpaque(true);
               darkred.setBackground(new Color(180,0,0));
               darkred.addActionListener(this);
               darkpurple=new JButton();
               darkpurple.setPreferredSize(new Dimension(bsize,bsize));
               darkpurple.setOpaque(true);
               darkpurple.setBackground(new Color(185,0,185));
               darkpurple.addActionListener(this);
               darkblue=new JButton();
               darkblue.setPreferredSize(new Dimension(bsize,bsize));
               darkblue.setOpaque(true);
               darkblue.setBackground(new Color(0,0,150));
               darkblue.addActionListener(this);
               darkgreen=new JButton();
               darkgreen.setPreferredSize(new Dimension(bsize,bsize));
               darkgreen.setOpaque(true);
               darkgreen.setBackground(new Color(0,140,0));
               darkgreen.addActionListener(this);
               darkyellow=new JButton();
               darkyellow.setPreferredSize(new Dimension(bsize,bsize));
               darkyellow.setOpaque(true);
               darkyellow.setBackground(new Color(176,176,0));
               darkyellow.addActionListener(this);
               darkorange=new JButton();
               darkorange.setPreferredSize(new Dimension(bsize,bsize));
               darkorange.setOpaque(true);
               darkorange.setBackground(new Color(170,85,0));
               darkorange.addActionListener(this);
               //Adds each button to a Panel
               bottommiddletop=new JPanel();
               bottommiddletop.setLayout(new FlowLayout(0,0,FlowLayout.LEFT));
               bottommiddletop.setPreferredSize(new Dimension(8*bsize,bsize));
               bottommiddletop.add(black);
               bottommiddletop.add(darkgray);
               bottommiddletop.add(darkred);
               bottommiddletop.add(darkpurple);
               bottommiddletop.add(darkblue);
               bottommiddletop.add(darkgreen);
               bottommiddletop.add(darkyellow);
               bottommiddletop.add(darkorange);     
               //Bottom Middle Creates bottom row of colors like top
               white=new JButton();
               white.setPreferredSize(new Dimension(bsize,bsize));
               white.setOpaque(true);
               white.setBackground(new Color(255,255,255));
               white.addActionListener(this);
               gray=new JButton();
               gray.setPreferredSize(new Dimension(bsize,bsize));
               gray.setOpaque(true);
               gray.setBackground(new Color(192,192,192));
               gray.addActionListener(this);
               red=new JButton();
               red.setPreferredSize(new Dimension(bsize,bsize));
               red.setOpaque(true);
               red.setBackground(new Color(255,0,0));
               red.addActionListener(this);
               purple=new JButton();
               purple.setPreferredSize(new Dimension(bsize,bsize));
               purple.setOpaque(true);
               purple.setBackground(new Color(213,0,213));
               purple.addActionListener(this);
               blue=new JButton();
               blue.setPreferredSize(new Dimension(bsize,bsize));
               blue.setOpaque(true);
               blue.setBackground(new Color(0,0,255));
               blue.addActionListener(this);
               green=new JButton();
               green.setPreferredSize(new Dimension(bsize,bsize));
               green.setOpaque(true);
               green.setBackground(new Color(0,255,0));
               green.addActionListener(this);
               yellow=new JButton();
               yellow.setPreferredSize(new Dimension(bsize,bsize));
               yellow.setOpaque(true);
               yellow.setBackground(new Color(255,255,0));
               yellow.addActionListener(this);
               orange=new JButton();
               orange.setPreferredSize(new Dimension(bsize,bsize));
               orange.setOpaque(true);
               orange.setBackground(new Color(244,122,0));
               orange.addActionListener(this);
               //Attaches buttons to a panel
               bottommiddle=new JPanel();
               bottommiddle.setLayout(new FlowLayout(0,0,FlowLayout.LEFT));
               bottommiddle.setPreferredSize(new Dimension(8*bsize,bsize));
               bottommiddle.add(white);
               bottommiddle.add(gray);
               bottommiddle.add(     red);
               bottommiddle.add(purple);
               bottommiddle.add(blue);
               bottommiddle.add(green);
               bottommiddle.add(yellow);
               bottommiddle.add(orange);     
               //Creates middle panel for bottom
               bottom=new JPanel();
               bottom.setLayout(new FlowLayout(0,0,FlowLayout.LEFT));
               bottom.setPreferredSize(new Dimension(8*bsize,2*bsize));
               bottom.add(bottommiddletop);
               bottom.add(bottommiddle);               
               //This is for a button on buttom right to make custom colors.
               //Right Setup creates a button which allows you to make your own color
               custom=new JButton("More");
               custom.setPreferredSize(new Dimension(4*bsize,2*bsize));
               custom.setOpaque(true);
               bottomright=new JPanel();
               bottomright.setLayout(new FlowLayout(0,0,FlowLayout.LEFT));
               bottomright.setPreferredSize(new Dimension(4*bsize,2*bsize));
               bottomright.add(custom);
               //The Panel containing current color is added first
               //Then the two colors panels are added
               //Then the panel with a custom button is added
               window.add(bottomleft);
               window.add(bottom);
               window.add(bottomright);
     public void actionPerformed(ActionEvent e)
          //Buttons to change colors
          if(e.getSource()==black)
               bottomleft.setBackground(new Color(0,0,0));
               newshape.setColor(0,0,0);
          if(e.getSource()==darkgray)
               bottomleft.setBackground(new Color(70,70,70));
               newshape.setColor(70,70,70);
          if(e.getSource()==darkred)
               bottomleft.setBackground(new Color(180,0,0));
               newshape.setColor(180,0,0);
          if(e.getSource()==darkpurple)
               bottomleft.setBackground(new Color(185,0,185));
               newshape.setColor(185,0,185);
          if(e.getSource()==darkblue)
               bottomleft.setBackground(new Color(0,0,150));
               newshape.setColor(0,0,150);
          if(e.getSource()==darkgreen)
               bottomleft.setBackground(new Color(0,140,0));
               newshape.setColor(0,140,0);
          if(e.getSource()==darkyellow)
               bottomleft.setBackground(new Color(176,176,0));
               newshape.setColor(176,176,0);
          if(e.getSource()==darkorange)
               bottomleft.setBackground(new Color(170,85,0));
               newshape.setColor(170,85,0);
          if(e.getSource()==white)
               bottomleft.setBackground(new Color(255,255,255));
               newshape.setColor(255,255,255);
          if(e.getSource()==blue)
               bottomleft.setBackground(new Color(0,0,255));
               newshape.setColor(0,0,255);
          if(e.getSource()==red)
               bottomleft.setBackground(new Color(255,0,0));
               newshape.setColor(255,0,0);
          if(e.getSource()==green)
               bottomleft.setBackground(new Color(0,255,0));
               newshape.setColor(0,255,0);
          if(e.getSource()==purple)
               bottomleft.setBackground(new Color(213,0,213));
               newshape.setColor(213,0,213);
          if(e.getSource()==yellow)
               bottomleft.setBackground(new Color(255,255,0));
               newshape.setColor(255,255,0);
          if(e.getSource()==orange)
               bottomleft.setBackground(new Color(244,122,0));
               newshape.setColor(244,122,0);
          if(e.getSource()==gray)
               bottomleft.setBackground(new Color(192,192,192));
               newshape.setColor(192,192,192);
          //Code for setting shape to draw
          if(e.getSource()==rect)
               setShapes();
               rect.setBackground(Color.blue);               
               newshape.setShape(1);
          if(e.getSource()==line)
               setShapes();
               newshape.setShape(0);
               line.setBackground(Color.blue);
          if(e.getSource()==oval)
               setShapes();
               newshape.setShape(2);
               oval.setBackground(Color.blue);
          //Code for setting to fill or not
          if(e.getSource()==solid)
               solid.setBackground(Color.blue);
               hollow.setBackground(Color.gray);
               newshape.setFill(1);
          if(e.getSource()==hollow)
               hollow.setBackground(Color.blue);
               solid.setBackground(Color.gray);
               newshape.setFill(0);
     public void setShapes()
          rect.setBackground(Color.gray);
          oval.setBackground(Color.gray);
          line.setBackground(Color.gray);
class Data
     private MyShape newshape;
     private MyShape [] shapes;
     public Data(MyShape a, MyShape [] b)
          newshape=a;
          shapes=b;
     public void drawShapes(Graphics g)
          drawAllShapes(g);
     public void sortShapes()
          for(int t=8; t>=0; t--)
               shapes[t+1]=shapes[t];
          shapes[0]=newshape;
          System.out.println("Shapes Sorted");
     public void drawAllShapes(Graphics g)
          newshape.reset(true);
          for(int i=9; i>=0; i--)
               shapes[i].drawShape(g);
          System.out.println("Shapes Drawn??");
class MyPanel extends JPanel
     private Data information;
     public MyPanel(Data a)
          information=a;
          setPreferredSize(new Dimension(600,600));
          setBackground(Color.blue);
     public void paintComponent(Graphics g)
          super.paintComponent(g);
          information.drawShapes(g);
class Listener extends MouseAdapter
     int x,y;
     private int [] loc=new int[4];
     int horzL, vertL;
     private boolean clicked=false;
     private boolean sortonce;
     private MyPanel temp;
     private MyShape newshape;
     private Data information;
     private int xt,yt,xl,yl;
     public Listener(MyPanel d, MyShape b, Data c)
          temp=d;
          newshape=b;          
          information=c;
     public void mouseClicked(MouseEvent e)
          if(clicked==false)
               x=e.getX();
               y=e.getY();
               clicked=true;
          else
          if(clicked==true)
               mouseloc(x,y,e.getX(),e.getY());
               information.sortShapes();
               temp.repaint();
               clicked=false;
     public void mouseloc(int xt,int yt,int xl,int yl)
          loc[0]=xt;
          loc[1]=yt;
          loc[2]=xl;
          loc[3]=yl;
          newshape.setLoc(xt,yt,xl,yl);
          newshape.doDraw(true);
class MyShape
     private int xL, yL, xR, yR; //Local location ints for this class;
     private int red, blue, green; //Local ints defining this color;
     private int shape,fill; //Local info about shape
     private boolean draw=false; // Determines if Shape will draw
     private boolean setupshape=true;
     public void MyShape()
     public void doDraw(boolean a)
          draw=a;
     public void setLoc(int xt,int yt,int xb,int yb)
          xL=xt;
          yL=yt;
          xR=xb;
          yR=yb;
     public void setColor(int r,int b,int g)
          red=r;
          blue=b;
          green=g;
     public void setShape(int thisshape)
          shape=thisshape;
     public void setFill(int fil)
          fill=fil;
     public void drawShape(Graphics g)
          if(draw==true && setupshape==true)
               System.out.println("This shape setup");
               g.setColor(new Color(red,blue,green));
               switch(shape)
                    case 0: makeLine(g);break;
                    case 1: makeRect(g);break;
                    case 2: makeOval(g);break;
               setupshape=false;
          else if(draw==true)
               System.out.println("This shape redrawn");
               switch(shape)
                    case 0: drawLine(g);break;
                    case 1: drawRect(g);break;
                    case 2: drawOval(g);break;
     public void reset(boolean a)
          setupshape=a;
     public void drawLine(Graphics g)
          g.drawLine(xL,yL,xR,yR);
     public void drawRect(Graphics g)
          if(fill==0)
               g.drawRect(xL,yL,xR,yR);
          else
               g.fillRect(xL,yL,xR,yR);
     public void drawOval(Graphics g)
          if(fill==0)
               g.drawOval(xL,yL,xR,yR);
          else
               g.fillOval(xL,yL,xR,yR);
     public void makeLine(Graphics g)
          g.drawLine(xL,yL,xR,yR);
     public void makeRect(Graphics g)
          sortvalue();
          if(fill==0)
               g.drawRect(xL,yL,xR,yR);
          else
               g.fillRect(xL,yL,xR,yR);
     public void makeOval(Graphics g)
          sortvalue();
          if(fill==0)
               g.drawOval(xL,yL,xR,yR);
          else
               g.fillOval(xL,yL,xR,yR);
     public void sortvalue()
               if(xR<xL)
               int temp=xR;
               xR=xL;
               xL=temp;
          if(yR<yL)
               int temp=yR;
               yR=yL;
               yL=temp;
          yR=(yR-yL);
          xR=(xR-xL);     

Answer 1

Sorry mate but you need a lot of work....
I like what you've done but (in my humble opinion) it needs a lot of reworking.
Your problem is you're not storing the shapes. You've set up an array but you never assign the shapes to it. I would reccomend using a vector. Heres a quick bit of pseudo code.
Listener class
mouseClicked method
if first click
get mouse x/y
if second click
get mouse x/y
create new MyShape(x1, y1, x2, y2)
call data.addShape(new MyShape)
Data class
constructor
this.myVector = new Vector()
addShape(MyShape shape) method
this.myVector.addElement(shape) -- add new shape
this.myVector.remove(0) -- remove bottom shape
drawAllShapes method
Enumeration enum= this.myVector.elements()
while(enum.hasMoreElements())
MyShape shape = (MyShape)enum.nextElement()
shape.draw()
Feel free to ask any questions.
Rob.