220109

/*import javax.swing.*;

import java.awt.*;

class ContentPane extends JFrame {

public ContentPane() {

setTitle("컨텐트팬");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Container cp = getContentPane();

cp.setLayout(null);

JLabel la =new JLabel("Hello, Press Buttons!");

la.setLocation(130, 50);

la.setSize(200,20);

cp.add(la);

for(int i=1;i<=9;i++) {

JButton b = new JButton(Integer.toString(i));

b.setLocation(i*15,i*15);

b.setSize(50,20);

cp.add(b);

}

setSize(300,200);

setVisible(true);

}

}

*

/*

class CP extends JFrame {

CP() {

setTitle("Let's study Java");

Container cp = getContentPane();

setSize(400,200);

setVisible(true);

}

}

*/

import javax.swing.*;

import java.awt.*;

/*

class CP extends JFrame {

public CP() {

setTitle("Border Practice");

Container cp = getContentPane();

cp.setLayout(new BorderLayout(5,7));

cp.add(new JButton("North"), BorderLayout.NORTH);

cp.add(new JButton("South"), BorderLayout.SOUTH);

cp.add(new JButton("East"), BorderLayout.EAST);

cp.add(new JButton("West"), BorderLayout.WEST);

cp.add(new JButton("Center"), BorderLayout.CENTER);

setVisible(true);

setSize(500,250);

}

}

*/

/*

class CP extends JFrame {

public CP() {

setTitle("Ten Color BUttons Frame");

setSize(500,250);

Container cp = getContentPane();

GridLayout grid = new GridLayout(1,10);

cp.setLayout(grid);

for(int i=0;i<10;i++) {

cp.add(new JButton(Integer.toString(i)));

}

setVisible(true);

}

}

*/

/*

class myJButton extends JButton {

public myJButton(String name, Color c) {

super(name);

setBackground(c);

}

}

class CP extends JFrame {

public CP() {

setTitle("Ten Color BUttons Frame");

setSize(500,250);

Container cp = getContentPane();

GridLayout grid = new GridLayout(1,10);

cp.setLayout(grid);

cp.add(new myJButton("0",Color.RED));

cp.add(new myJButton("1",Color.ORANGE));

cp.add(new myJButton("2",Color.YELLOW));

cp.add(new myJButton("3",Color.GREEN));

cp.add(new myJButton("4",Color.CYAN));

cp.add(new myJButton("5",Color.BLUE));

cp.add(new myJButton("6",Color.magenta));

cp.add(new myJButton("7",Color.GRAY));

cp.add(new myJButton("8",Color.PINK));

cp.add(new myJButton("9",Color.lightGray));

setVisible(true);

}

}

*/

/*

class myJLabel extends JLabel {

public myJLabel(String name, Color c) {

super(name);

setBackground(c);

setOpaque(true);

}

}

class CP extends JFrame {

public CP() {

setTitle("4x4 Color Frame");

Container cp = getContentPane();

GridLayout grid = new GridLayout(4,4);

cp.setLayout(grid);

cp.add(new myJLabel("0",Color.RED));

cp.add(new myJLabel("1",Color.ORANGE));

cp.add(new myJLabel("2",Color.YELLOW));

cp.add(new myJLabel("3",Color.GREEN));

cp.add(new myJLabel("4",Color.CYAN));

cp.add(new myJLabel("5",Color.BLUE));

cp.add(new myJLabel("6",Color.magenta));

cp.add(new myJLabel("7",Color.GRAY));

cp.add(new myJLabel("8",Color.PINK));

cp.add(new myJLabel("9",Color.lightGray));

cp.add(new myJLabel("10",Color.WHITE));

cp.add(new myJLabel("11",Color.DARK_GRAY));

cp.add(new myJLabel("12",Color.BLACK));

cp.add(new myJLabel("13",Color.ORANGE));

cp.add(new myJLabel("14",Color.BLUE));

cp.add(new myJLabel("15",Color.magenta));

setSize(400,200);

setVisible(true);

}

}

*/

/*

class CP extends JFrame {

public CP() {

setTitle("Random Labels");

Container cp = getContentPane();

cp.setLayout(null);

for(int i=0;i<20;i++) {

JLabel label = new JLabel(Integer.toString(i));

label.setBackground(Color.BLUE);

int x = (int)(Math.random()*200) + 50;

int y = (int)(Math.random()*200) + 50;

label.setLocation(x,y);

label.setSize(10,10);

cp.add(label);

label.setOpaque(true);

}

setSize(300,300);

setVisible(true);

}

}

*/

/*

class CP extends JFrame {

public CP() {

setTitle("Open Challenge 9");

Container cp = getContentPane();

cp.setLayout(new BorderLayout());

JPanel panel = new JPanel();

panel.setBackground(Color.GRAY);

panel.add(new JButton("Open"));

panel.add(new JButton("Read"));

panel.add(new JButton("Close"));

cp.add(panel,BorderLayout.NORTH);

JPanel p = new JPanel();

p.setBackground(Color.lightGray);

p.setLayout(null);

JLabel label[] = new JLabel[3];

label[0]=new JLabel("Love");

label[1]=new JLabel("Java");

label[2]=new JLabel("Hello");

for(int i=0;i<3;i++) {

int x = (int)(Math.random()*150);

int y = (int)(Math.random()*150);

label[i].setLocation(x,y);

label[i].setSize(100,100);

p.add(label[i]);

}

cp.add(p,BorderLayout.CENTER);

setSize(300,300);

setVisible(true);

}

}

*/

/*

class myJButton extends JButton {

myJButton(String name, Color c) {

super(name);

setBackground(c);

}

}

class CP extends JFrame {

public CP() {

setTitle("계산기 프레임");

setSize(300,300);

setVisible(true);

Container cp = getContentPane();

cp.setLayout(new BorderLayout());

JPanel Upper = new JPanel();

Upper.add(new JLabel("수식입력"));

Upper.add(new JTextField("여기에 입력하세요", 25));

Upper.setBackground(Color.gray);

cp.add(Upper,BorderLayout.NORTH);

JPanel Center = new JPanel();

Center.setLayout(new GridLayout(4,4,5,5));

Center.add(new JButton("0"));

Center.add(new JButton("1"));

Center.add(new JButton("2"));

Center.add(new JButton("3"));

Center.add(new JButton("4"));

Center.add(new JButton("5"));

Center.add(new JButton("6"));

Center.add(new JButton("7"));

Center.add(new JButton("8"));

Center.add(new JButton("9"));

Center.add(new JButton("CE"));

Center.add(new JButton("계산"));

Center.add(new myJButton("+", Color.CYAN));

Center.add(new myJButton("-", Color.CYAN));

Center.add(new myJButton("x", Color.CYAN));

Center.add(new myJButton("/", Color.CYAN));

cp.add(Center,BorderLayout.CENTER);

JPanel Lower = new JPanel();

Lower.add(new JLabel("계산결과"));

Lower.add(new JTextField("이곳에 결과가 나옵니다", 25));

Lower.setBackground(Color.yellow);

cp.add(Lower,BorderLayout.SOUTH);

}

}

*/

import java.awt.event.*;

/*

class CP extends JFrame {

class myActionListener implements ActionListener {

public void MyActionListener() {

}

public void actionPerformed(ActionEvent e) {

JButton b = (JButton)e.getSource();

if(b.getText().equals("Open")) b.setText("열기");

else if(b.getText().equals("열기")) b.setText("Open");

else if(b.getText().equals("Close")) b.setText("닫기");

else if(b.getText().equals("닫기")) b.setText("Close");

else if(b.getText().equals("나가기")) b.setText("Exit");

else if(b.getText().equals("Exit")) b.setText("나가기");

else if(b.getText().equals("Word input")) b.setText("단어 입력");

else b.setText("Word input");

}

}

public CP() {

setTitle("여러개의 패널을 가진 프레임");

setSize(350,350);

setVisible(true);

Container cp = getContentPane();

cp.setLayout(new BorderLayout());

JPanel Upper = new JPanel();

JPanel Center = new JPanel();

Center.setLayout(null);

JPanel Lower = new JPanel();

JButton op = new JButton("열기");

JButton cl = new JButton("닫기");

JButton ex = new JButton("나가기");

Upper.add(op);

Upper.add(cl);

Upper.add(ex);

Upper.setBackground(Color.gray);

cp.add(Upper,BorderLayout.NORTH);

for(int i=0;i<10;i++) {

JLabel la = new JLabel("*");

int x = (int)(Math.random()*200+15);

int y = (int)(Math.random()*200+15);

la.setLocation(x, y);

la.setSize(20,20);

la.setForeground(Color.red);

Center.add(la);

}

cp.add(Center,BorderLayout.CENTER);

JButton wi = new JButton("Word input");

Lower.add(wi);

Lower.add(new JTextField(20));

Lower.setBackground(Color.YELLOW);

cp.add(Lower,BorderLayout.SOUTH);

op.addActionListener(new myActionListener());

cl.addActionListener(new myActionListener());

ex.addActionListener(new myActionListener());

wi.addActionListener(new myActionListener());

}

}

*/

/*

class CP extends JFrame {

private JLabel la = new JLabel("Hello!");

public CP() {

setTitle("Mouse 이벤트 예제");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Container c =getContentPane();

c.addMouseListener(new MyMouseListener());

c.setLayout(null);

la.setSize(50,50);

la.setLocation(30,30);

c.add(la);

setSize(250,250);

setVisible(true);

}

class MyMouseListener extends MouseAdapter {

@Override

public void mousePressed(MouseEvent e) {

int x = e.getX();

int y = e.getY();

la.setLocation(x,y);

System.out.println(x+","+y);

}

}

}

*/

/*

class CP extends JFrame {

private JLabel[] keyMessage;

public CP() {

setTitle("keyListener 예제");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Container c = getContentPane();

c.setLayout(new FlowLayout());

c.addKeyListener(new MyKeyListener());

keyMessage = new JLabel [3];

keyMessage[0] = new JLabel(" getKeyCode() ");

keyMessage[1] = new JLabel(" getKeyChar() ");

keyMessage[2] = new JLabel(" getKeyText() ");

for(int i=0;i<keyMessage.length;i++) {

c.add(keyMessage[i]);

keyMessage[i].setOpaque(true);

keyMessage[i].setBackground(Color.yellow);

}

setSize(300,150);

setVisible(true);

c.setFocusable(true);

c.requestFocus();

}

class MyKeyListener extends KeyAdapter {

public void keyPressed(KeyEvent e) {

int keyCode = e.getKeyCode();

char keyChar = e.getKeyChar();

keyMessage[0].setText(Integer.toString(keyCode));

keyMessage[1].setText(Character.toString(keyChar));

keyMessage[2].setText(KeyEvent.getKeyText(keyCode));

System.out.println("KeyPressed");

}

public void keyReleased(KeyEvent e ) {

System.out.println("KeyRealsed");

}

public void keyTyped(KeyEvent e) {

System.out.println("KeyTyped");

}

}

}

*/

/*

class CP extends JFrame {

private JLabel la = new JLabel();

public CP() {

setTitle("Key COde 예제 : F1키:초록색, %키:노란색");

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Container c = getContentPane();

c.addKeyListener(new MyKeyListener());

c.add(la);

setSize(300,150);

setVisible(true);

c.setFocusable(true);

c.requestFocus();

}

class MyKeyListener extends KeyAdapter {

public void keyPressed(KeyEvent e) {

Container contentPane = (Container)e.getSource();

la.setText(KeyEvent.getKeyText(e.getKeyCode())+"키가 입력되었음");

if(e.getKeyCode()==KeyEvent.VK_) contentPane.setBackground(Color.yellow);

else if(e.getKeyCode()==KeyEvent.VK_F1) contentPane.setBackground(Color.green);

}

}

}

public class Main {

public static void main(String[] args) {

new CP();

}

}*/