import awb.*;
import java.awt.*;

public class UsedCars extends java.applet.Applet
{
   TextField gMake, gStyle, gColor, gOwner, mInstruct;
   IntField gYear;                                      
   String Make[] ={"Mercedes","Mercedes","Ford",  "Mercedes","Datsun","Ford"}; 
   String Style[]={"4 door",  "4 door",  "truck", "4 door",  "2 door","4 door"};
   String Color[]={"white",   "ivory",   "blue",  "green",   "red",   "blue"};
   String Owner[]={"M.K.Ramm","D.Ramm",  "M.Ramm","D.Ramm",  "K.Ramm","D.Ramm"};
   int Year[]    ={ 1987,      1987,      1972,    1971,      1978,     1978};
   Label make, style, color, owner, year;                           
   TextArea mResults;
   int k;
   
   public void init()
   {   
        year = new Label("Year");
        make = new Label("Make");
        style = new Label("Style");
        color = new Label("Color");
        owner = new Label("Owner");
        mInstruct = new TextField(60);
        mInstruct.setText("Enter Selections, leave blank for Wild Card");
        gYear = new IntField(10);
        gMake = new TextField(10);
        gStyle = new TextField(10);
        gColor = new TextField(10);
        gOwner = new TextField(20);
        mResults = new TextArea(10, 60);
        
        add(mInstruct);
        add(year);
        add(gYear);
        add(make);
        add(gMake);
        add(style);
        add(gStyle);
        add(color);
        add(gColor);
        add(owner);
        add(gOwner);
        add(mResults);
    }           
        
    public boolean action(Event e, Object arg)
    {
        int yea;
        String mak, sty, col, own;
        
        if (e.target == gYear || e.target == gMake || e.target == gStyle
           || e.target == gColor || e.target == gOwner)                                                    
        {
            yea = gYear.getInt();
            mak = gMake.getText();
            sty = gStyle.getText();
            col = gColor.getText();
            own = gOwner.getText();
            k = gYear.getInt();
            mResults.setText("Cars Matching Parameters Specified\n");
            report(yea, mak, sty, col, own, 6);
            
            return true;
        }
        return false;
    }
    
    boolean isMatch(int year, int yea, String make, String mak, String style,
               String sty, String color, String col, String owner, String own) 
    {
        if ((year == yea || yea == 0) && (make.equals(mak) || mak.equals("")) 
            && (style.equals(sty)||sty.equals(""))&&(color.equals(col)||col.equals(""))
            && (owner.equals(own)||own.equals("")) )
            return true;
        return false;
    }
            
    void report(int yea, String mak, String sty, String col, String  own, int num)
    {
        int k;
        k = 0;
        while (k < num)
        {
            if (isMatch(Year[k], yea, Make[k], mak, Style[k], sty, Color[k], col,
                      Owner[k], own))
                mResults.appendText("year: "+Year[k]+"  make: "+Make[k]+"  style: "
                +Style[k]+"  color: "+Color[k]+"  owner: "+Owner[k]+"\n");
            k = k + 1;
        }
    }
}