public class VarargsTest
1: // Fig. 7.20: VarargsTest.java
2: // Using variable-length argument lists.
3:
4: public class VarargsTest
5: {
6: // calculate average
7: public static double average( double... numbers )
8: {
9: double total = 0.0; // initialize total
10:
11: // calculate total using the enhanced for statement
12: for ( double d : numbers )
13: total += d;
14:
15: return total / numbers.length;
16: } // end method average
17:
18: public static void main( String args[] )
19: {
20: double d1 = 10.0;
21: double d2 = 20.0;
22: double d3 = 30.0;
23: double d4 = 40.0;
24:
25: System.out.printf( "d1 = %.1f\nd2 = %.1f\nd3 = %.1f\nd4 = %.1f\n\n",
26: d1, d2, d3, d4 );
27:
28: System.out.printf( "Average of d1 and d2 is %.1f\n",
29: average( d1, d2 ) );
30: System.out.printf( "Average of d1, d2 and d3 is %.1f\n",
31: average( d1, d2, d3 ) );
32: System.out.printf( "Average of d1, d2, d3 and d4 is %.1f\n",
33: average( d1, d2, d3, d4 ) );
34: } // end main
35: } // end class VarargsTest
36:
37:
38: /**************************************************************************
39: * (C) Copyright 1992-2005 by Deitel & Associates, Inc. and *
40: * Pearson Education, Inc. All Rights Reserved. *
41: * *
42: * DISCLAIMER: The authors and publisher of this book have used their *
43: * best efforts in preparing the book. These efforts include the *
44: * development, research, and testing of the theories and programs *
45: * to determine their effectiveness. The authors and publisher make *
46: * no warranty of any kind, expressed or implied, with regard to these *
47: * programs or to the documentation contained in these books. The authors *
48: * and publisher shall not be liable in any event for incidental or *
49: * consequential damages in connection with, or arising out of, the *
50: * furnishing, performance, or use of these programs. *
51: *************************************************************************/