TUGAS RUMAH 3 PEMROGRAMAN BERORIENTASI OBJEK

MEMBUAT JAM DIGITAL

Karina Soraya P
05111740000003
PBO - B

• Source Code Number Display

 /**  
  * Source Code Number Display  
  *  
  * @author (Karina Soraya P)  
  * @version (8.1/20180928)  
  */  
  public class NumberDisplay   
  {   
   private int limit;   
   private int nilai;   
   public NumberDisplay(int Maksimal)   
   {   
    limit = Maksimal;   
    nilai = 0;   
   }   
   public int getValue()   
   {   
    return nilai;   
   }   
   public void increment()   
   {   
    nilai = (nilai + 1) % limit;   
   }    
   public String getDisplayValue()   
   {   
    if(nilai < 10)   
    {   
     return "0" + nilai;   
    }   
    else   
    {   
     return "" + nilai;   
    }   
   }   
   public void setValue(int replacementValue)   
   {   
    if((replacementValue >= 0) && (replacementValue < limit))   
    {   
     nilai = replacementValue;   
    }   
   }   
  }   

• Source Code Clock Display

 /**  
  * Source Code Clock Display  
  *  
  * @author (Karina Soraya P)  
  * @version (8.0/20180928)  
  */  
  public class ClockDisplay   
  {   
   private NumberDisplay jam;   
   private NumberDisplay menit;   
   private String displayString;  
   public ClockDisplay()   
   {   
    jam = new NumberDisplay(24);   
    menit = new NumberDisplay(60);   
    updateDisplay();   
   }   
   public ClockDisplay(int hour, int minute)   
   {   
    jam = new NumberDisplay(24);   
    menit = new NumberDisplay(60);   
    setTime(hour,minute);   
   }    
   public void timeTick()   
   {   
    menit.increment();   
    if(menit.getValue() == 0)   
    {   
     jam.increment();   
    }   
    updateDisplay();   
   }   
   public void setTime(int hour, int minute)   
   {   
    jam.setValue(hour);   
    menit.setValue(minute);   
    updateDisplay();   
   }   
   public String getTime()   
   {   
    return displayString;   
   }   
   private void updateDisplay()   
   {   
    displayString = jam.getDisplayValue() + ":" + menit.getDisplayValue();   
   }   
  }   

• Source Code Test Clock Display

 /**  
  * Source Code Test Clock Display  
  *  
  * @author (Karina Soraya P)  
  * @version (8.2/20180928)  
  */  
 public class TestClockDisplay   
  {   
   public TestClockDisplay()   
   {   
   }   
   public void test()   
   {   
    ClockDisplay clock = new ClockDisplay();   
    clock.setTime(23,24);   
    System.out.println(clock.getTime());   
    clock.setTime(9,30);   
    System.out.println(clock.getTime());   
   }   
  }   

• Source Code Clock GUI

 /**  
  * Source Code Clock GUI  
  *  
  * @author (Karina Soraya P)  
  * @version (8.3/20180928)  
  */  
  import java.awt.*;   
  import java.awt.event.*;   
  import javax.swing.*;   
  import javax.swing.border.*;   
  public class ClockGUI   
  {   
   private JFrame frame;   
   private JLabel label;   
   private ClockDisplay clock;   
   private boolean clockOn = false;   
   private TimerThread timerThread;   
   public void Clock()   
   {   
    makeFrame();   
    clock = new ClockDisplay();   
   }   
   private void start()   
   {   
    clockOn = true;   
    timerThread = new TimerThread();   
    timerThread.start();   
   }   
   private void stop()   
   {   
    clockOn = false;   
   }   
   private void step()   
   {   
    clock.timeTick();   
    label.setText(clock.getTime());   
   }    
   private void showAbout()   
   {   
    JOptionPane.showMessageDialog (frame, "Clock Version 0.1\n" +    
    "Membuat jam digital simpel dengan Java.",   
    "About Clock",   
    JOptionPane.INFORMATION_MESSAGE);   
   }   
   private void quit()   
   {   
    System.exit(0);   
   }   
   private void makeFrame()   
   {   
    frame = new JFrame("Clock");   
    JPanel contentPane = (JPanel)frame.getContentPane();   
    contentPane.setBorder(new EmptyBorder(1,60,1,60));   
    makeMenuBar(frame);   
    contentPane.setLayout(new BorderLayout(12,12));    
    label = new JLabel("00:00", SwingConstants.CENTER);   
    Font displayFont = label.getFont().deriveFont(96.0f);   
    label.setFont(displayFont);   
    contentPane.add(label, BorderLayout.CENTER);   
    JPanel toolbar = new JPanel();   
    toolbar.setLayout(new GridLayout(1,0));   
    JButton startButton = new JButton("Start");   
    startButton.addActionListener(e->start());   
    toolbar.add(startButton);   
    JButton stopButton = new JButton("Stop");   
    stopButton.addActionListener(e->stop());   
    toolbar.add(stopButton);   
    JButton stepButton = new JButton("Step");   
    stepButton.addActionListener(e->step());   
    toolbar.add(stepButton);   
    JPanel flow = new JPanel();   
    flow.add(toolbar);   
    contentPane.add(flow, BorderLayout.SOUTH);   
    frame.pack();   
    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();   
    frame.setLocation(d.width/2 - frame.getWidth()/2, d.height/2 - frame.getHeight()/2);   
    frame.setVisible(true);   
   }   
   private void makeMenuBar(JFrame frame)   
   {   
    final int SHORTCUT_MASK =    
    Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();   
    JMenuBar menubar = new JMenuBar();   
    frame.setJMenuBar(menubar);   
    JMenu menu;   
    JMenuItem item;    
    menu = new JMenu("File");   
    menubar.add(menu);   
    item = new JMenuItem("About Clock...");   
     item.addActionListener(e->showAbout());   
    menu.add(item);   
    menu.addSeparator();   
    item = new JMenuItem("Quit");   
     item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q,SHORTCUT_MASK));   
     item.addActionListener(e->quit());   
    menu.add(item);   
   }   
   class TimerThread extends Thread   
   {   
    public void run()   
     {   
      while(clockOn)   
      {   
       step();   
       pause();   
      }   
     }   
     private void pause()   
     {   
      try    
      {   
       Thread.sleep(900);   
      }   
      catch(InterruptedException exc)   
      {   
      }   
    }   
   }   
  }   

• Hasil