Re: Need assistance with arrays

RookThis wrote:


Hard to make suggestions without seeing a complete example of the current
state of affairs, but let me try - after pointing you to
<http://www.physci.org/codes/sscce.html>
for next time.

package example;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;

public class Car
{
   private String type;
   private String color;
   private String description;
   private String make;

   public void setType( String val ) { type = val; }
   public String get() { return type; }

   public void setColor( String val ) { color = val; }
   public String get() { return color; }

   public void setDescription( String val ) { description = val; }
   public String get() { return description; }

   public void setMake( String val ) { make = val; }
   public String get() { return make; }

   public static void main( String [] args )
   {
     if ( args.length < 2 )
     {
       System.err.println( "Wrong args" );
       return;
     }

     Scanner carIn;
     try
     {
       carIn = new Scanner( new BufferedReader( new FileReader( args [0] )));
     }
     catch ( IOException ex )
     {
       System.err .println( "Bad File "+ args [0] +". "+ ex.getMessage() );
       ex.printStackTrace( System.err );
       return;
     }

     Car[] cars;
     {
       int nc;
       try
       {
         nc = Integer.parseInt( args [1] );
         if ( nc < 0 )
         {
            nc = 50;
         }
       }
       catch ( NumberFormatException ex )
       {
         nc = 50;
       }
       cars = new Car [nc];
     }

     try
     {
       for ( int ix = 0; ix < cars.length && carIn.hasNext(); ++ix )
       {
         Car car = new Car();

         String val = carIn.next();
         car.setType( val );

         val = carIn.next();
         car.setColor( val );

         val = carIn.next();
         car.setDescription( val );

         val = carIn.nextLine();
         car.setMake( val );

         cars [ix] = car;
       }

       // do something here with cars
     }
     finally
     {
       carIn.close();
     }
   }

}

--
Lew