// Fig. 21.3: GenericMethodTest.java
// Printing array elements using generic method printArray.

public class GenericMethodTest 
{
   public static void main( String[] args ) 
   {
      // create arrays of Integer, Double and Character
      Integer[] integerArray = { 1, 2, 3, 4, 5, 6 };
      Double[] doubleArray = { 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7 };
      Character[] characterArray = { 'H', 'E', 'L', 'L', 'O' };

      System.out.println( "Array integerArray contains:" );
      printArray( integerArray ); // pass an Integer array 
      System.out.println( "\nArray doubleArray contains:" );
      printArray( doubleArray ); // pass a Double array
      System.out.println( "\nArray characterArray contains:" );
      printArray( characterArray ); // pass a Character array
   } // end main

   // generic method printArray
   public static < T > void printArray( T[] inputArray )
   {
      // display array elements
      for ( T element : inputArray )
         System.out.printf( "%s ", element );

      System.out.println();
   } // end method printArray
} // end class GenericMethodTest

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