package lang.stride;

import java.util.AbstractList;
import java.util.List;

public class Utility
{       



| Fills an array with an inclusive range
|
| If start < end, range uses step 1
| If start == end, range is size 1
| If start > end, array will be empty
|
public static List makeRange(int start, int end)
   {        
      return new AbstractList<Integer>()
       {            
         private final boolean empty = start > end;

           
         @Override
           
         public int size()
           {                
            return empty ? 0 : end - start + 1;             
            }

           
         @Override
           
         public Integer get(int index)
           {
            if (!empty && index >= 0 && start + index <= end)
                   
            return start + index;
               
            else{ throw new IndexOutOfBoundsException("Not in bounds: " + index);
               }             
            }         
         };
      } 
   }