ArrayMethods.java

package topicsExamples.Arrays;

public class ArrayMethods
{
     
     public static void main(String[] beans)
     {
          int   num   = 984325789;
          int[] evens = {2, 4, 6, 8, 10, 12, 14, 16, 18, 20};  
          
          /*
           * optional algorithm to fill evens with <numEvens> of evens
           * 
           *   final int numEvens = 10;
           * 
           *   int[] evens = new int[numEvens];
           *   for(int i = 1; i <= numEvens; i++)
           *   {
           *        evens[i-1] = i * 2;
           *   }
           *   
           */
          
          doubleNums(num, evens);
          
          System.out.println(num); //num is a primitive type so nothing changes
          
          for(int i = 0; i < evens.length; i++)
               System.out.println(evens[i]); //arrays store data references, so the indexes change
          
          
     }//end main
     
     public static void doubleNums(int val, int values[])
     {
          val *= 2;
          
          for(int i = 0; i < values.length; i++)
               values[i] *= 2;
     }
}//end class