public class Copy1a
{
   public static void main(String[] args)
   {
         double[] a = { 1.1,  2.2,  3.3 };    // The original array
         double[] b;                          // The copy
 
         b = a;            // is b a copy of a  ???????

      /* ====================================
         Let's do an experiment....
         ==================================== */
         int i;

      /* ----------------------------------
         Print the values before the update
         ---------------------------------- */
         System.out.println("a array:");
         for ( i = 0; i < a.length; i++)
            System.out.println( a[i] );
         System.out.println("b array:");
         for ( i = 0; i < b.length; i++)
            System.out.println( b[i] );
 
         b[0] = b[0]+10;   // Update one element in the copy 
                           // (This must not change the original)   
 
      /* ----------------------------------
         Print the values after the update
         ---------------------------------- */
         System.out.println("Values after updating the copy b[0]:");
 
         System.out.println("a array:");
         for ( i = 0; i < a.length; i++)
            System.out.println( a[i] );
         System.out.println("b array:");
         for ( i = 0; i < b.length; i++)
            System.out.println( b[i] );
   }
}