ITStudent02, on 19 June 2011 - 12:44 AM, said:

Yes/No...LOL
No: in a sense that one class can't have more than one main()
Yes: different classes can have their own single main(), it does not cause any problem

See you figured this out... post your final draft and i'm sure people will be able to help you out.

Take care

OOPS!! my bad, see what happens to newbies?? LOL...no worries

I forgot to include the most important file and that is the items.txt, the file that the program reads from

Here it is:  items.txt (111bytes)
Number of downloads: 48

As I have mentioned earlier put all files first in a folder named lab4 except the app.java file and items.txt file and keep these two files just outside the lab4 folder and then try compiling and run.

Hope it would work.

By the way, the code is provided so you can work around and understand the way the problem can be handled.

I do understand your situation and sorry that I could not be of more help as I said that I am not a professional programmer in JAVA either, still a learner.

anyways, good luck !!!

There is a very similar code that I did while in my 12th grade, I'm sharing with you so that you can make adjustments with your requirements. Is this the format your instructor wants exactly?

it is always a good idea to break your entire code into smaller manageable chunks of code and store them in a file by themselves.Like the ones provided.

Note: keep all of the files into a folder named lab04 except the app.java
//This is App.java

//Lab4                                     Niaz Mohammad
//
//CS211-lab section 203
//
//Instructor: MVIEIRA
//
//Prints out the names,quantity and profits gain from some hardware tools in formatted String

   import java.io.*;
   import java.util.*;
   import lab4.*;

    public class App {
       public static void main (String [] args) {
         Scanner infile = null;
         Inventory storeA = new Inventory();
      
        //open file
         try {
            infile = new Scanner (new File("items.txt"));
         }
             catch (FileNotFoundException e) {
               System.out.println ("Problems opening file");
               System.exit (1);
            }
      
      
      // readInventory
         String name = null; int amount =0; double profit = 0;
         while (infile.hasNext()) {
            try{
               name = infile.next();
               amount = infile.nextInt();
               profit = infile.nextDouble ();
               storeA.add(new Item(name,amount,profit));
            }
                catch (NoSuchElementException e) {
                  System.out.println ("failed to add "+ name);
               }
         }
      
      //showInventory
         System.out.println (storeA);
        
        // close file
         if (infile != null)
            infile.close();
        
      }           
   }
	      
        

//the following files goes to lab4 folder

//Inventory.java

//Lab4                                     Niaz Mohammad
//
//CS211-lab section 203
//
//Instructor: MVIEIRA
//
//Prints out the names,quantity and profits gain from some hardware tools in formatted String

   package lab4;

   import java.text.NumberFormat;
    public class Inventory {
      Item [] items;
      int count;
   
       public Inventory() {
         items = new Item[2];
         count=0;
      }
   
       public void add(Item item){
         items [count] = item;
         count++;
         if(count==items.length)
            increaseSize();
      }
       private void increaseSize()
      {
         Item[]temp=new Item[items.length*2];
         for(int c=0;c<items.length;c++)
            temp[c]=items[c];
      
         items=temp;
      
      }
   
       public String toString () {
         StringBuffer buf = new StringBuffer ();
         buf.append (String.format 
            ("%-15s%7s%15s\n","Name","Count","ItemProfit"));
         for (int i =0; i< count; ++i){
            buf.append(items [i]);
            buf.append ("\n");
         }
         return buf.toString();
      }
   
       public static void main (String [] args) {
         Inventory storeA = new Inventory ();
         storeA.add (new Item ("pliers", 2671, 5348.56));
         storeA.add (new Item ("hammer", 531, -876.44));
         storeA.add (new Item ("screw driver", 888, 1348.82));
         System.out.println (storeA);
      }
   }

//this is Item.java

//Lab4                                     Niaz Mohammad
//
//CS211-lab section 203
//
//Instructor: MVIEIRA
//
//Prints out the names,quantity and profits gain from some hardware tools in formatted String
	
   package lab4;


    public class Item {
      String name;
      int quantity;
      double profitTotal;
   
       public Item (String name, int amount, double profit) 
      {
         this.name = name;
         quantity = amount;
         profitTotal = profit;
      }
   
       public String toString () 
      {
         String result=String.format("%-15s%,7d%(,15.2f", name,quantity,profitTotal/quantity);
         return result;
        /*results printout in fields of width
         15,7,15 respectively.  Use flags on 
         double field to print commas, have precision 2,
         and show negatives with surrounding () */ 
      }
   
       public static void main ( String [] args) {
         Item [] inventory = new Item [10];
         inventory[0] = new Item ("pliers", 2671, 5348.56);
         inventory[1] = new Item ("hammer", 531, 876.44);
         inventory[2] = new Item ("screw driver", 888, 1348.82);
         for (int i = 0; i< 3; ++i)
            System.out.println (inventory[i]);
      }
   }

      

After compiling all, run the App.java

Sorry, it was taking a whole lot of brain sugar for me to put things into order from your given code.

Please provide your codes in code tag, since it is very hard to understand it other ways, I am a newbie as I assume you are too, and have learned it the hard way...LOL

The two blogs are still showing under the current blog settings, however, they are not accessible with a message "unauthorized to access" or something like that, if that's what you are referring to as being deleted, then so it is cause I don't know anything about it.

So, am I safe to open a new blog now??

Thanks by the way, for doing it for us for free...LOL