How to add in button and paint in applet?

[Edward Sie]

i having problem of adding the button and paint graphic together.. should it using paint Component?

import java.applet.*;
import java.awt.*;
import java.util.*;
import java.net.*;
import java.net.URL;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;

public class Player implements Runnable{
	private String name;
	private int age;
	private int x =0, y=0, speed, z;


	//Thread th;

	public Player(String name, int age, int x, int y, int speed){
		this.name = name;
		this.age = age;
		this.x = x;
		this.y = y;
		this.speed = speed;
	}

	public String getName() {
    	return name;
  	}

	public void setName(String name) {
	    this.name = name;
	}

	public int getSpeed() {
    	return speed;
  	}

	public void setSpeed(int speed) {
	    this.speed = speed;
	}

	public int getAge(){
		return age;
	}

	public void setAge(int age){
	  	this.age = age;
	}

	public int getX(){
	  	return x;
	}

	public void setX(int x){
	  	this.x = x;
	}

	public int getY(){
	    return y;
	}

	public void setY(int y){
		this.y=y;
	}

	public void start(){
	}

	public void run(){
		try{
			while(true) {
				x++;
				Thread.sleep(speed);
				//if(x == 535){
				//break;
			//	}
			}
		}
		catch(Exception e) {
			System.out.println(e);
		}
	}
}

import java.awt.*;
import javax.swing.*;
import java.net.URL;
import java.io.*;
import javax.imageio.*;
import java.util.concurrent.*;
import java.util.*;
import java.applet.*;

public class RaceAnimate extends JApplet implements Runnable{


		Thread th0, th1,th2,th3;
		Graphics bufferGraphics;
		Image car1, car2, car3, offscreen, background;
		private JButton jbtStart = new JButton("Start");

		static Player player1 = new Player("Edward", 19, 0, 130, 15);
		static Player player2 = new Player("Johnson", 21, 0, 260, 8);
		static Player player3 = new Player("Bernard", 21, 0, 400, 10);

	public void init(){


	    setLayout(new FlowLayout());

 		add(jbtStart);

    	offscreen = createImage(getSize().width, getSize().height);
    	bufferGraphics = offscreen.getGraphics();

 		System.out.println("swt");
 		car1=getImage(getCodeBase(),"images/car1(new).png");
 		car2=getImage(getCodeBase(),"images/car2(new).png");
 		car3=getImage(getCodeBase(),"images/car3(new).png");
 		background=getImage(getCodeBase(),"images/road2.jpg");


    }

	public void paint(Graphics g){


		th0 = new Thread(this);
		th0.start();

		bufferGraphics.drawImage(background,0,0,this);
		bufferGraphics.drawImage(car1,player1.getX(),player1.getY(),this);
		bufferGraphics.drawImage(car2,player2.getX(), player2.getY(),this);
		bufferGraphics.drawImage(car3,player3.getX(),player3.getY(),this);
		g.drawImage(offscreen,0,0,this);

	}

	public void start(){

		th1 = new Thread(player1);
		th1.start();

		th2 = new Thread(player2);
		th2.start();

		th3 = new Thread(player3);
		th3.start();

	}

	public void update(Graphics g) {

		paint(g);
	}

	public void run(){
		try{
			repaint();
		}
		catch(Exception e) {
			System.out.println(e);
		}

		if(player1.getX() == 535){
			th1.stop();
		}

		if(player2.getX() == 535){
			th2.stop();
		}

		if(player3.getX() == 535){
			th3.stop();
		}
	}

	   public static void main(String[] args){

		JFrame frame = new JFrame("Practical 1");
		RaceAnimate applet = new RaceAnimate();

	  	frame.add(applet);
	 	applet.init();
	  	applet.start();



		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setSize(500,400);
		frame.setVisible(true);
	}
}

[Ulf Dittmer]

should it using paintComponent?

Yes. See Lesson: Performing Custom Painting and Painting in AWT and Swing.

[Edward Sie]

yeap~ but i cnt manage to add in paintcomponent.. actually i dono how to use paint component~ i hope can be teach =)