import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;

public class WaitTime extends JPanel
{
    private JTextField triesField;
    private JButton triesButton;
    Frequency freq;
    int[] tries;
    boolean yesTry = false;
    
    public WaitTime()
    {
        JPanel time = new JPanel();
        freq = new Frequency();
        
        triesField = new JTextField(40);
        triesField.setEditable(false);
        
        tries = new int[30];
        triesButton = new JButton("Tries");
        
        TriesListener listen = new TriesListener();
        triesButton.addActionListener(listen);
        
        setLayout(new GridLayout(2,2));
        add(time);
        add(freq);
        
        time.setLayout(new FlowLayout(FlowLayout.LEFT));
        time.add(triesButton);
        time.add(triesField);
        yesTry = false;
    }
    
    public class TriesListener implements ActionListener
    {
        public void actionPerformed(ActionEvent ae)
        {
            Integer ctr = 0;
            int bush = 3, num;
            String str = "";
            for (int ind=0; ind<tries.length; ind++)
            {
                do {
                    num = (int)(Math.random()*5+1);
                    ctr++;
                } while(num != bush);
                tries[ind] = ctr;
                str += ctr.toString() + " ";
                ctr = 0;
            }
            triesField.setText(str);
            str = "";
            yesTry = true;
        }
    }
    
    public class Frequency extends JPanel
    {
        ArrayList freqs, numStore;
        
        public Frequency()
        {
            String[] fr = new String[1];
            freqs = new ArrayList(1);
            int size;
            if (yesTry)
            {
                getFreqs();
                fr = new String[freqs.size()];
                freqs.toArray(fr);
                yesTry = false;
            }
            setLayout(new GridLayout(freqs.size(),1));
            for (int ind=0; ind<freqs.size(); ind++)
            {
                add(new JLabel(fr[ind]));
            }
        }
        
        public void getFreqs()
        {
            String str = "";
            numStore = new ArrayList();
            int num = 0;
            int ctr = 0;
            Arrays.sort(tries);
            for (int ind=0; ind<tries.length; ind++)
            {
                if (ind == 0)
                {
                   num = tries[ind];
                   numStore.add(num);
                    for (int ind2=0; ind<tries.length; ind++)
                    {
                        if (tries[ind2] == num)
                            ctr++;
                    }
                }
                else if (tries[ind] != tries[ind-1])
                {
                    num = tries[ind];
                    numStore.add(num);
                    for (int ind2=0; ind<tries.length; ind++)
                    {
                        if (tries[ind2] == num)
                            ctr++;
                    }
                }
                str = num + " came up " + ctr + " times.";
                freqs.add(str);
                ctr = 0;
                str = "";
            }
        }
    }
}