[JAVA] Day_06. Member inner class & Anonymous inner class로 바꾸기
JAVA 2018. 3. 26. 17:02 |ListenerTest.java
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | package Day_06; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class ListenerTest extends Frame implements ActionListener, WindowListener { Panel p; Button input, exit; TextArea ta; public ListenerTest() { super("ActionEvent Test"); p = new Panel(); input = new Button("입력"); exit = new Button("종료"); ta = new TextArea(); this.addWindowListener(this); input.addActionListener(this); exit.addActionListener(this); p.add(input); p.add(exit); add(p, BorderLayout.NORTH); add(ta, BorderLayout.CENTER); setBounds(300, 300, 300, 200); setVisible(true); } @Override public void actionPerformed(ActionEvent ae) { String name; name = ae.getActionCommand(); if(name.equals("입력")) { ta.append("버튼이 입력되었습니다.\n"); } else { ta.append("프로그램을 종료합니다.\n"); try { Thread.sleep(1000); } catch(Exception e) { e.printStackTrace(); } System.exit(0); } } public static void main(String[] args) { ListenerTest lt = new ListenerTest(); } @Override public void windowOpened(WindowEvent e) { } @Override public void windowClosing(WindowEvent e) { System.exit(0); } @Override public void windowClosed(WindowEvent e) { } @Override public void windowIconified(WindowEvent e) { } @Override public void windowDeiconified(WindowEvent e) { } @Override public void windowActivated(WindowEvent e) { } @Override public void windowDeactivated(WindowEvent e) { } } | cs |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | package Day_06; /* // header - edit "Data/yourJavaHeader" to customize // contents - edit "EventHandlers/Java file/onCreate" to customize // */ import java.awt.*; import java.awt.event.*; public class AnnoymousEx2 extends Frame implements ActionListener { Panel p1, p2, p3; TextField tf; TextArea ta; Button b1, b2; public AnnoymousEx2() { super("Adapter 테스트"); p1=new Panel(); p2=new Panel(); p3=new Panel(); tf=new TextField(35); ta=new TextArea(10,35); b1=new Button("Clear"); b2=new Button("Exit"); p1.add(tf); p2.add(ta); p3.add(b1); p3.add(b2); add("North",p1); add("Center",p2); add("South",p3); setBounds(300,200,300,300); setVisible(true); b1.addActionListener(this); b2.addActionListener(this); // KeyEventHandler -> KeyAdapter (익명 클래스로 바꿈) tf.addKeyListener(new KeyAdapter() { public void keyTyped(KeyEvent e) { if(e.getKeyChar() == KeyEvent.VK_ENTER) { ta.append(tf.getText()+"\n"); tf.setText(""); } } }); // WindowHandler -> WindowAdapter (익명 클래스로 바꿈) addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); } public void actionPerformed(ActionEvent e) { String str=e.getActionCommand(); if(str.equals("Clear")) { ta.setText(""); tf.setText(""); tf.requestFocus(); } else if(str.equals("Exit")) { System.exit(0); } } // 어나니머스(익명) 클래스로 바꾸기 /*class WindowHandler extends WindowAdapter { public void windowClosing(WindowEvent e) { System.exit(0); } }*/ // 멤버이너 클래스로 바꾸기 /*class KeyEventHandler extends KeyAdapter { TextField tf; TextArea ta; public KeyEventHandler(TextField tf, TextArea ta) { this.tf=tf; this.ta=ta; } public void keyTyped(KeyEvent e) { if(e.getKeyChar() == KeyEvent.VK_ENTER) { ta.append(tf.getText()+"\n"); tf.setText(""); } } }*/ public static void main(String[] args) { new AnnoymousEx2(); } /* // 어나니머스(익명) 클래스로 바꾸기 class WindowHandler extends WindowAdapter { public void windowClosing(WindowEvent e) { System.exit(0); } } // 멤버이너 클래스로 바꾸기 class KeyEventHandler extends KeyAdapter { TextField tf; TextArea ta; public KeyEventHandler(TextField tf, TextArea ta) { this.tf=tf; this.ta=ta; } public void keyTyped(KeyEvent e){ if(e.getKeyChar() == KeyEvent.VK_ENTER) { ta.append(tf.getText()+"\n"); tf.setText(""); } } } */ } | cs |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | import java.awt.*; import java.awt.event.*; public class AnnoymousEx3 extends Frame implements ActionListener { Panel p1, p2, p3; TextField tf; TextArea ta; Button b1, b2; public AnnoymousEx3() { super("Adapter 테스트"); p1 = new Panel(); p2 = new Panel(); p3 = new Panel(); tf = new TextField(35); ta = new TextArea(10, 35); b1 = new Button("Clear"); b2 = new Button("Exit"); p1.add(tf); p2.add(ta); p3.add(b1); p3.add(b2); add("North", p1); add("Center", p2); add("South", p3); setBounds(300, 200, 300, 300); setVisible(true); b1.addActionListener(this); b2.addActionListener(this); tf.addKeyListener(new KeyAdapter() {//어나니머스로 바꾸었다. public void keyTyped(KeyEvent e) { if (e.getKeyChar() == KeyEvent.VK_ENTER) { ta.append(tf.getText() + "\n"); tf.setText(""); } } }); addWindowListener(new WindowAdapter() {//어나니머스 이너클래스 public void windowClosing(WindowEvent e) { System.exit(0); } }); } public void actionPerformed(ActionEvent e) { String str = e.getActionCommand(); if (str.equals("Clear")) { ta.setText(""); tf.setText(""); tf.requestFocus(); } else if (str.equals("Exit")) { System.exit(0); } } public static void main(String[] args) { new AnnoymousEx3(); } } | cs |