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Thread: Why doesn't this work!

  1. #1
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    Unhappy Why doesn't this work!

    My listeners in this program aren't working and I'm getting some errors that I don't understand.Someone please help!(I have to classes one is named LottoMadness and the other one is called LottoEvent.)

    import java.awt.*;
    import javax.swing.*;
     
    public class LottoMadness extends JFrame
     
      {
    	LottoEvent lotto = new LottoEvent(this);
      //set up row 1
      JPanel row1 = new JPanel();
      ButtonGroup option = new ButtonGroup();
      JCheckBox quickpick = new JCheckBox("Quick Pick", false);
      JCheckBox personal = new JCheckBox("Personal", true);
     
      //set up row2
      JPanel row2 = new JPanel();
      JLabel numbersLabel = new JLabel("Your picks: ", JLabel.RIGHT);
      JTextField[] numbers = new JTextField[6];
      JLabel winnersLabel = new JLabel("winners: ", JLabel.RIGHT);
      JTextField[] winners = new JTextField[6];
     
      //set up row 3
      JPanel row3 = new JPanel();
      JButton stop = new JButton("Stop");
      JButton play = new JButton("Play");
      JButton reset = new JButton("Reset");
     
      //set up row 4
      JPanel row4 = new JPanel();
      JLabel got3Label = new JLabel("3 of 6: ", JLabel.RIGHT);
      JTextField got3 = new JTextField("0");
      JLabel got4Label = new JLabel("4 of 6: ", JLabel.RIGHT);
      JTextField got4 = new JTextField("0");
      JLabel got5Label = new JLabel("5 of 6: ", JLabel.RIGHT);
      JTextField got5 = new JTextField("0");
      JLabel got6Label = new JLabel("6 of 6: ", JLabel.RIGHT);
      JTextField got6 = new JTextField("0", 10);
     
      JLabel drawingsLabel = new JLabel("Drawings: ", JLabel.RIGHT);
      JTextField drawings = new JTextField("0");
      JLabel yearsLabel = new JLabel("Years: ", JLabel.RIGHT);
      JTextField years = new JTextField("");
     
      public LottoMadness()
        {
    	super("Lotto Madness");
    	setSize(550, 270);
    	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	GridLayout layout = new GridLayout(5, 1, 10, 10);
    	setLayout(layout);
     
    	// Add listeners
    	quickpick.addItemListener(lotto);
    	personal.addItemListener(lotto);
    	stop.addItemListener(lotto);
    	play.addActionListener(lotto);
    	reset.addActionListener(lotto);
     
    	FlowLayout layout1 = new FlowLayout(FlowLayout.CENTER, 10, 10);
     
    	option.add(quickpick);
    	option.add(personal);
    	row1.setLayout(layout1);
    	row1.add(quickpick);
    	row1.add(personal);
    	add(row1);
     
    	GridLayout layout2 = new GridLayout(2, 7,10, 10);
    	row2.setLayout(layout2);
    	row2.add(numbersLabel);
    	for(int i = 0; i < 6; i++)
    	  {
    	    numbers[i] = new JTextField();
    	    row2.add(numbers[i]);
    	  } 
     
    	row2.add(winnersLabel);
    	for(int i =0; i < 6; i++)
    	  {
    	   winners[i] = new JTextField();
    	   winners[i].setEditable(false);
    	   row2.add(winners[i]);
    	  }
    	add(row2);
     
    	FlowLayout layout3 = new FlowLayout(FlowLayout.CENTER, 10,10);
    	row3.setLayout(layout3);
    	stop.setEnabled(false);
    	row3.add(stop);
    	row3.add(play);
    	row3.add(reset);
    	add(row3);
     
    	GridLayout layout4 = new GridLayout(2, 3, 20, 10);
    	row4.setLayout(layout4);
    	row4.add(got3Label);
    	got3.setEditable(false);
    	row4.add(got3);
    	row4.add(got4Label);
    	got4.setEditable(false);
    	row4.add(got4);
    	row4.add(got5Label);
    	got5.setEditable(false);
    	row4.add(got5);
    	row4.add(got6Label);
    	got6.setEditable(false);
    	row4.add(got6);
    	row4.add(drawingsLabel);
    	drawings.setEditable(false);
    	row4.add(drawings);
    	row4.add(yearsLabel);
    	years.setEditable(false);
    	row4.add(years);
    	add(row4);
     
    	setVisible(true);
     
        }
     
      public static void main(String args[])
        {
    	  LottoMadness frame = new LottoMadness();
        }
     
      }



    import javax.swing.*;
    import java.awt.event.*;
     
    public class LottoEvent implements ItemListener, ActionListener, Runnable
      {
      LottoMadness gui;
      Thread playing;
     
      public LottoEvent(LottoMadness in)
        {
    	 gui = in;  
        }
     
      public void actionPerformed(Action e)
        {
    	String command = ((AbstractButton) e).getActionCommand();
     
    	if(command.equals("play"))
    	  {
    	  startPlaying();	
    	  }
     
    	if(command.equals("Stop"))
    	  {
          stopPlaying();
    	  }
     
    	if(command.equals("Reset"))
    	  {
    	  clearAllFields();
    	  }
     
        }
     
      void startPlaying()
        {
    	  playing = new Thread(this); 
    	  playing.start();
    	  gui.play.setEnabled(false);
    	  gui.stop.setEnabled(true);
    	  gui.reset.setEnabled(false);
    	  gui.quickpick.setEnabled(false);
    	  gui.personal.setEnabled(false);
    	}
     
      void stopPlaying()
        {
    	  gui.stop.setEnabled(false);
    	  gui.play.setEnabled(true);
    	  gui.reset.setEnabled(true);
    	  gui.quickpick.setEnabled(true);
    	  gui.personal.setEnabled(true);
    	  playing = null;
        }
      void clearAllFields()
        {
    	  for(int i = 0; i < 6; i++)
    	    {
    	    gui.numbers[i].setText(null);
    	    gui.winners[i].setText(null);
    	    }
     
    	  gui.got3.setText("0");
    	  gui.got4.setText("0");
    	  gui.got5.setText("0");
    	  gui.got6.setText("0");
    	  gui.drawings.setText("0");
    	  gui.years.setText("0");
     
    	}
     
      public void itemStateChanged(ItemEvent event)
        {
    	Object item = event.getItem();
    	if(item == gui.quickpick)
    	  {
     
    	  for(int i = 0; i < 6; i++)
    	    {
    		int pick;  
    	    }
    	  int pick;
    	int i = 0;
    	do 
    	    {
    		pick = (int) Math.floor(Math.random() * 50 + 1);  
    	    }
    	  while (numberGone(pick, gui.numbers, i));
    	  gui.numbers[i].setText("" + pick);
     
    	  }
     
        }
     
     
     
     
      void addOneToField(JTextField field)
        {
    	int num = Integer.parseInt("0" + field.getText());
    	num++;
    	field.setText("" + num);
     
        }
     
      boolean numberGone(int num, JTextField[] pastNums, int count)
        {
    	for(int i = 0; i < count; i++)
    	  {
    	  if(Integer.parseInt(pastNums[i].getText()) == num)
    	    {
    		  return true;
    	    }
     
    	  }
    	 return false;
        }
     
      boolean matchedOne(JTextField win, JTextField[] allPicks)
        {
    	for(int i = 0; i < 6; i++)
    	  {
    	  String winText = win.getText();
    	  if( winText.equals(allPicks[i].getText() ) )
    	    {
    		return true;  
    	    }
     
    	  }
    	 return false;
        }
     
      public void run()
        {
    	Thread thisThread = Thread.currentThread();
    	while(playing == thisThread)
    	  {
    	  addOneToField(gui.drawings);
    	  int draw = Integer.parseInt(gui.drawings.getText());
    	  float numYears = (float)draw / 104;
    	  gui.years.setText("" + numYears);
     
    	  int matches = 0;
    	  for(int i = 0; i < 6; i ++)
    	    {
    		int ball;
    		do
    		  {
    		  ball = (int) Math.floor(Math.random() * 50 + 1);
    		  }
    		while(numberGone(ball, gui.winners, i));
    		gui.winners[i].setText("" + ball);
    		if (matchedOne(gui.winners[i], gui.numbers))
    		  {
    		  matches++;	
    		  }
    		switch(matches)
    		  {
    		case 3:
    			addOneToField(gui.got3);
    			break;
    		case 4:
    			addOneToField(gui.got4);
    			break;
    		case 5:
    			addOneToField(gui.got6);
    			break;
    		case 6:
    			addOneToField(gui.got6);
    			gui.stop.setEnabled(false);
    			gui.play.setEnabled(true);
    			playing = null;
    	 	  }
     
    		try
    		  {
    		  Thread.sleep(100);
    		  }
    		catch(InterruptedException e)
    		  {
    		  System.out.println("Error*");
    		  }
    	    }
    	  }
    	}
    Last edited by Alex-Green; February 20th, 2012 at 01:13 AM.


  2. #2
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    Default Re: Why doesn't this work!

    Well, as a matter of being more helpful to those trying to assist you, you should always post any information regarding your issue, such as your error message. However, I recognized the problem relatively quickly.... You never set your program to be focusable.

  3. #3
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    Default Re: Why doesn't this work!

    You never set your program to be focusable.
    Care explaining it?

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