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

public class UsedCars extends java.applet.Applet implements ActionListener
{
   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.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;                           
   Button bSearch;
   TextArea mResults;
   int size = 6;
   
   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);
      bSearch = new Button("Search");
      mResults = new TextArea(10, 60);
      bSearch.addActionListener(this);
      gMake.addActionListener(this);
      add(mInstruct);
      add(year);
      add(gYear);
      add(make);
      add(gMake);
      add(style);
      add(gStyle);
      add(color);
      add(gColor);
      add(owner);
      add(gOwner);
      add(bSearch);
      add(mResults);
   }           
        
   public void actionPerformed(ActionEvent event)
   {
      //Object cause = event.getSource();
      int yea;
      String mak, sty, col, own;
        
      //if (cause == bSearch) 
      {
         yea = gYear.getInt();
         mak = gMake.getText();
         sty = gStyle.getText();
         col = gColor.getText();
         own = gOwner.getText();
         mResults.setText("Cars Matching Parameters Specified\n");
         report(yea, mak, sty, col, own, size);
      }
   }
    
   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 = 0;
      while (k < num)
      {
         if (isMatch(Year[k], yea, Make[k], mak, Style[k], sty, Color[k], col,
                                                               Owner[k], own))
            mResults.append("year: "+Year[k]+"  make: "+Make[k]+"  style: "
                +Style[k]+"  color: "+Color[k]+"  owner: "+Owner[k]+"\n");
         k = k + 1;
      }
   }
}