// From Lay Networks.com

import java.awt.*;

class RouteTable extends Panel
{

    RouteTable()
    {
        tab = new TextField[7][7];
        setLayout(new GridLayout(8, 8, 3, 0));
        add(topic = new Label("Table:"));
        for(int i = 0; i < 7; i++)
        {
            alpha = "" + (char)(97 + i);
            add(new Label(alpha));
        }

        for(int j = 0; j < 7; j++)
        {
            alpha = "" + (char)(97 + j);
            add(new Label(alpha));
            for(int k = 0; k < 7; k++)
            {
                add(tab[j][k] = new TextField("N/A"));
                tab[j][k].setEditable(false);
            }

        }

    }

    public void setTable(int i, int j, int k, int l)
    {
        String s = "";
        if(i != j && k != 0)
            s = "" + k + "," + FindHop(l);
        else
        if(i != j && k == 0)
            s = "inf";
        else
        if(i == j)
            s = "-";
        tab[i][j].setText(s);
    }

    public void setColor(int i, int j, Color color)
    {
        tab[i][j].setBackground(color);
    }

    public void resetColor(int i, int j)
    {
        tab[i][j].setBackground(Color.lightGray);
    }

    public void resetAllColor()
    {
        for(int i = 0; i < 7; i++)
        {
            for(int j = 0; j < 7; j++)
                tab[i][j].setBackground(Color.lightGray);

        }

    }

    public void setDefault()
    {
        for(int i = 0; i < 7; i++)
        {
            for(int j = 0; j < 7; j++)
                tab[i][j].setText("N/A");

        }

    }

    public String FindHop(int i)
    {
        String s = "";
        switch(i)
        {
        case 0: // '\0'
            s = "A";
            break;

        case 1: // '\001'
            s = "B";
            break;

        case 2: // '\002'
            s = "C";
            break;

        case 3: // '\003'
            s = "D";
            break;

        case 4: // '\004'
            s = "E";
            break;

        case 5: // '\005'
            s = "F";
            break;

        case 6: // '\006'
            s = "G";
            break;

        default:
            s = null;
            break;
        }
        return s;
    }

    Label topic;
    TextField tab[][];
    String alpha;
}