GenericMethodTest.java

// Fig. 13.2: GenericMethodTest.java
// Printing array elements using generic method printArray.

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

      System.out.printf("Array integerArray contains: ");
      printArray(integerArray); // pass an Integer array
      System.out.printf("Array doubleArray contains: ");
      printArray(doubleArray); // pass a Double array
   }

   // 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();
   } 
} 



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