Help With MouseListeners

[RPBLEA]

Okay I'm stumped, I can't figure out how to draw Lines? When I click on one of the poylgons I want to get the Color Of the POlygon, Then I want to be able to draw a line with that Color on the Canvas. I've been stuck for 3 days, Can't figure it out, ANy Help appreciated, thank you.

import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.awt.Color;

public class polygon extends Canvas implements MouseListener {

private int [] s = {25,50,75};
private int [] t = {50,25,50};
private int [] ss = {100, 125, 150};
private int [] tt = {50, 25, 50};
private int [] sss = {175, 200, 225};
private int [] ttt = {50, 25, 50};

private Polygon p = new Polygon(s,t,3);
private Polygon q = new Polygon(ss,tt,3);
private Polygon r = new Polygon(sss,ttt,3);

private Button save = new Button();
private Button open = new Button();

private int x;
private int y;
private int oldx;
private int oldy;

private Color c;

public static void main(String [] args) {
polygon polygon = new polygon();
}

public polygon() {
Frame theframe = new Frame();
theframe.setSize(500, 500);
theframe.add(this,BorderLayout.CENTER);
theframe.setVisible(true);
addMouseListener(this);
}
public void drawLine(Graphics g, Color c){
g.drawLine(oldx, oldy,10,10);
}
public void paint (Graphics g) {
g.setColor(Color.blue);
g.fillPolygon(p);
g.setColor(Color.RED);
g.fillPolygon(q);
g.setColor(Color.GREEN);
g.fillPolygon(r);
drawLine(g,c);
}
public void mousePressed(MouseEvent e){
x = e.getX();
y = e.getY();
oldx = x;
oldy = y;
}
public void mouseReleased(MouseEvent e){
x = e.getX();
y = e.getY();
}
public void mouseClicked(MouseEvent e) {
if (p.contains(e.getX(),e.getY())) {
c = Color.blue;
repaint();
}
if (q.contains(e.getX(),e.getY())){
c = Color.red;
repaint();
}
if (r.contains(e.getX(),e.getY())){
c = Color.green;
repaint();
}
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
}

[Kram]

here ya go this should help ya:


import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.awt.Color;

public class polygon extends Canvas implements MouseListener {

private int [] s = {25,50,75};
private int [] t = {50,25,50};
private int [] ss = {100, 125, 150};
private int [] tt = {50, 25, 50};
private int [] sss = {175, 200, 225};
private int [] ttt = {50, 25, 50};

private Polygon p = new Polygon(s,t,3);
private Polygon q = new Polygon(ss,tt,3);
private Polygon r = new Polygon(sss,ttt,3);

private Button save = new Button();
private Button open = new Button();

private int x = 0;
private int y = 0;
private int oldx = 0;
private int oldy = 0;

private Color c;
private String colour = "BLACK";

private int clicks =0;

public static void main(String [] args) {
polygon polygon = new polygon();
}

public polygon() {
Frame theframe = new Frame();
theframe.setSize(500, 500);
theframe.add(this,BorderLayout.CENTER);
theframe.setVisible(true);
addMouseListener(this);
}

public void paint (Graphics g) {
g.setColor(Color.blue);
g.fillPolygon(p);
g.setColor(Color.RED);
g.fillPolygon(q);
g.setColor(Color.GREEN);
g.fillPolygon(r);

if(colour.equals("BLUE")){
g.setColor(Color.BLUE);
}
if(colour.equals("RED")){
g.setColor(Color.RED);
}
if(colour.equals("GREEN")){
g.setColor(Color.GREEN);
}
if(((clicks % 2) == 0) && (clicks != 0)){
g.drawLine(oldx, oldy,x,y);
}
}
public void mousePressed(MouseEvent e){
oldx = x;
oldy = y;
x = e.getX();
y = e.getY();
clicks++;
if((x > 25) && (x < 75) && (y < 50) && (y > 25)){
colour = "BLUE";
clicks = 0;
}
if((x > 100) && (x < 150) && (y < 50) && (y > 25)){
colour = "RED";
clicks = 0;
}
if((x > 175) && (x < 225) && (y < 50) && (y > 25)){
colour = "GREEN";
clicks = 0;
}

repaint();
}
public void mouseReleased(MouseEvent e){}
public void mouseClicked(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
}

[RPBLEA]

That code helps out a great deal thank you. I would like to know though that after you draw a line, And go to draw a new line the old line dissapears, Is there any way to keep the lines there on the screen. To keep the lines on the screen? Thanks.