자바

AWT(Abstract Windowing Toolkit)

-Dfile.encoding=MS949

java.lang.System

.exit() // static

* 배치관리자(Layout Manager)

c.f. java.awt.Container

BorderLayout

.NORTH

.WEST

.CENTER

.EAST

.SOUTH

java.awt.FlowLayout

java.awt.BorderLayout

java.awt.GridLayout

* 이벤트 리스너

c.f. 이벤트 소스

java.awt.event.ActionEvent

.getSource()

java.awt.event.ActionListener // interface

c.f. java.awt.Button::addActionListener()

void actionPerformed(ActionEvent)

java.awt.event.WindowAdapter // abstract

c.f. java.awt.Window::addWindowListener()

void windowClosing(WindowEvent e) // abstract?

*

java.awt.Color

.red

java.awt.Component

.setBackground()

.repaint()

java.awt.Button -> java.awt.Component

.addActionListener()

java.awt.event.ActionListener // interface

void actionPerformed(ActionEvent)

java.awt.event.ActionEvent

java.awt.Container -> java.awt.Component

.setLayout()

java.awt.FlowLayout

.add()

java.awt.Panel -> java.awt.Container

java.awt.Window -> java.awt.Container

.dispose()

.setSize()

.pack()

.setVisible()

.addWindowListener()

java.awt.event.WindowAdapter // abstract

java.awt.Frame -> java.awt.Window

.setMenuBar()

java.awt.Dialog -> java.awt.Window

.show() // Deprecated

java.applet.Applet -> java.awt.Panel

.getDocumentBase()

.getImage()

appletviewer

import java.awt.*;

import java.awt.event.*;

public class FrameTest02{

// <

static class FrameEvent extends Frame implements ActionListener {

  Button redBtn, blueBtn;

  public void actionPerformed(ActionEvent e) {

    if(e.getSource( ) == redBtn)

      this.setBackground(Color.red);

    else if(e.getSource( ) == blueBtn)

      this.setBackground(Color.blue);

  }

  public FrameEvent( ) {

    super("..");

    setSize(300,200);

    setLayout(new FlowLayout());

    redBtn = new Button("..");

    blueBtn = new Button("..");

    redBtn.addActionListener(this);

    blueBtn.addActionListener(this);

    add(redBtn);

    add(blueBtn);

    ..

    addWindowListener(new WindowAdapter( ){

      public void windowClosing(WindowEvent e) {

        dispose();

        System.exit(0);

      }

     }

     );

    setVisible(true);

  }

}

// >

  public static void main(String[] args) {

    new FrameEvent( );

  }    

}

<APPLET code="AppletExam02.class" width="300" height="300"></APPLET>

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

public class AppletExam02 extends Applet 

{

int x, y;

public void init(){

addMouseListener(new MouseAdapter(){

public void mouseClicked(MouseEvent e){ 

x=e.getX();

y=e.getY();

repaint();

}

});

}

public void start(){

x = -1; 

y = -1;

repaint();

}

public void stop(){

}

public void destroy(){

}

public void paint(Graphics g) 

{

if (x != -1 || y != -1) {

g.fillOval(x, y, 10, 10);

}

}

}