ATM机模拟_JAVA实现_JAVA初学者最好的案例

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov. // Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html // Decompiler options: packimports(3) fieldsfirst ansi // Source File Name: SimKeyboard.java package simulation; import java.awt.*; import java.awt.event.*; // Referenced classes of package simulation: // SimDisplay, Simulation, SimEnvelopeAcceptor class SimKeyboard extends Panel { private SimDisplay display; private SimEnvelopeAcceptor envelopeAcceptor; private int mode; private static final int IDLE_MODE = 0; private static final int PIN_MODE = 1; private static final int AMOUNT_MODE = 2; private static final int MENU_MODE = 3; private StringBuffer currentInput; private boolean cancelled; private int maxValue; SimKeyboard(SimDisplay simdisplay, SimEnvelopeAcceptor simenvelopeacceptor) { display = simdisplay; envelopeAcceptor = simenvelopeacceptor; setLayout(new GridLayout(5, 3)); Button abutton[] = new Button[10]; for(int i = 1; i < 10; i++) { abutton[i] = new Button(String.valueOf(i)); add(abutton[i]); } add(new Label("")); abutton[0] = new Button("0"); add(abutton[0]); add(new Label("")); Button button = new Button("ENTER"); button.setForeground(Color.black); button.setBackground(new Color(128, 128, 255)); add(button); Button button1 = new Button("CLEAR"); button1.setForeground(Color.black); button1.setBackground(new Color(255, 128, 128)); add(button1); Button button2 = new Button("CANCEL"); button2.setBackground(Color.red); button2.setForeground(Color.black); add(button2); for(int j = 0; j < 10; j++) abutton[j].addActionListener(new ActionListener() { public void actionPerformed(ActionEvent actionevent) { digitKeyPressed(Integer.parseInt(actionevent.getActionCommand())); } }); button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent actionevent) { enterKeyPressed(); } }); button1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent actionevent) { clearKeyPressed(); } }); button2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent actionevent) { cancelKeyPressed(); } }); addKeyListener(new KeyAdapter() { public void keyPressed(KeyEvent keyevent) { char c = keyevent.getKeyChar(); int k = keyevent.getKeyCode(); if(c >= '0' && c <= '9') { digitKeyPressed(c - 48); keyevent.consume(); return; } switch(k) { case 10: // '\n' enterKeyPressed(); break; case 12: // '\f' clearKeyPressed(); break; case 3: // '\003' case 27: // '\033' cancelKeyPressed(); break; } keyevent.consume(); } }); currentInput = new StringBuffer(); mode = 0; } synchronized String readInput(int i, int j) { mode = i; maxValue = j; currentInput.setLength(0); cancelled = false; if(i == 2) setEcho("0.00"); else setEcho(""); requestFocus(); try { wait(); } catch(InterruptedException _ex) { } mode = 0; if(cancelled) return null; else return currentInput.toString(); } private synchronized void digitKeyPressed(int i) { switch(mode) { case 1: // '\001' currentInput.append(i); StringBuffer stringbuffer = new StringBuffer(); for(int j = 0; j < currentInput.length(); j++) stringbuffer.append('*'); setEcho(stringbuffer.toString()); return; case 2: // '\002' currentInput.append(i); String s = currentInput.toString(); if(s.length() == 1) { setEcho("0.0" + s); return; } if(s.length() == 2) { setEcho("0." + s); return; } else { setEcho(s.substring(0, s.length() - 2) + "." + s.substring(s.length() - 2)); return; } case 3: // '\003' if(i > 0 && i <= maxValue) { currentInput.append(i); notify(); return; } else { getToolkit().beep(); return; } case 0: // '\0' default: return; } } private synchronized void enterKeyPressed() { switch(mode) { case 1: // '\001' case 2: // '\002' if(currentInput.length() > 0) { notify(); return; } else { getToolkit().beep(); return; } case 3: // '\003' getToolkit().beep(); return; case 0: // '\0' default: return; } } private synchronized void clearKeyPressed() { switch(mode) { case 1: // '\001' currentInput.setLength(0); setEcho(""); return; case 2: // '\002' currentInput.setLength(0); setEcho("0.00"); return; case 3: // '\003' getToolkit().beep(); return; case 0: // '\0' default: return; } } private synchronized void cancelKeyPressed() { switch(mode) { case 0: // '\0' synchronized(envelopeAcceptor) { envelopeAcceptor.notify(); } // fall through case 1: // '\001' case 2: // '\002' case 3: // '\003' cancelled = true; notify(); // fall through default: return; } } private void setEcho(String s) { display.setEcho(s); } }