Weblabor

import java.applet.*;
import java.awt.*;
import java.awt.Window.*;
import java.awt.event.*;
import java.awt.Graphics;

public class eventproba extends Applet {

	static Graphics gh;

	public void init() {
		setFocusable(true);
		addMouseListener(new CEgerFigyelom());
		addKeyListener(new CBillentyuleutesFigyelom());
		gh = getGraphics();
	}
	
	public void paint(Graphics g) {
		g.drawString("helló", 100, 100);
	}
	
	public static void drawingline() {
		gh.drawLine(100, 100, 400, 500);
	}
	
	public static void labeller(int x, int y, int ev) {
		switch (ev) {
			case 1:
				gh.setColor(Color.green);
				gh.drawString("kattintottál itt", x, y);
				break;
			case 2:
				gh.setColor(Color.magenta);
				gh.drawString("beléptél az appletbe itt", x, y);
				break;
			case 3:
				gh.setColor(Color.blue);
				gh.drawString("kiléptél az appletből itt", x, y);
				break;
			case 4:
				gh.setColor(Color.red);
				gh.drawString("egeret nyomtál itt", x, y);
				break;
			case 5:
				gh.setColor(Color.orange);
				gh.drawString("felengedted itt", x, y);
				break;
		}
	}
	
	public static void pressedkeylabeller(int ch) {
		gh.setColor(Color.black);
		gh.fillRect(0, 0, 50, 50);
		gh.setColor(Color.white);
		String sch;
		sch = ""+ch+"";
		gh.drawString(sch, 15, 15);
	}
}

class CEgerFigyelom extends eventproba implements MouseListener {

	public void mouseClicked(MouseEvent e) {
		System.out.println("kattintottál");
		System.out.println("egeret nyomtál");
		int x = e.getX();
		int y = e.getY();
		labeller(x, y, 1);
	}
	
	public void mouseEntered(MouseEvent e) {
		System.out.println("beléptél az appletbe");
		System.out.println("egeret nyomtál");
		int x = e.getX();
		int y = e.getY();
		labeller(x, y, 2);
	}
	
	public void mouseExited(MouseEvent e) {
		System.out.println("kiléptél az appletből");
		System.out.println("egeret nyomtál");
		int x = e.getX();
		int y = e.getY();
		labeller(x, y, 3);
	}
	
	public void mousePressed(MouseEvent e) {
		System.out.println("egeret nyomtál");
		int x = e.getX();
		int y = e.getY();
		labeller(x, y, 4);
	}
	
	public void mouseReleased(MouseEvent e) {
		System.out.println("felengedted az egeret");
		System.out.println("egeret nyomtál");
		int x = e.getX();
		int y = e.getY();
		labeller(x, y, 5);
	}
}

class CBillentyuleutesFigyelom extends eventproba implements KeyListener {

	public void keyPressed(KeyEvent e) {
		System.out.println("billentyű lett lenyomva");
		int ch = e.getKeyCode();
		pressedkeylabeller(ch);
	}
	
	public void keyReleased(KeyEvent e) {
	}
	
	public void keyTyped(KeyEvent e) {
	}
}