public class InitArray
1: // Fig. 7.21: InitArray.java
2: // Using command-line arguments to initialize an array.
3:
4: public class InitArray
5: {
6: public static void main( String args[] )
7: {
8: // check number of command-line arguments
9: if ( args.length != 3 )
10: System.out.println(
11: "Error: Please re-enter the entire command, including\n" +
12: "an array size, initial value and increment." );
13: else
14: {
15: // get array size from first command-line argument
16: int arrayLength = Integer.parseInt( args[ 0 ] );
17: int array[] = new int[ arrayLength ]; // create array
18:
19: // get initial value and increment from command-line argument
20: int initialValue = Integer.parseInt( args[ 1 ] );
21: int increment = Integer.parseInt( args[ 2 ] );
22:
23: // calculate value for each array element
24: for ( int counter = 0; counter < array.length; counter++ )
25: array[ counter ] = initialValue + increment * counter;
26:
27: System.out.printf( "%s%8s\n", "Index", "Value" );
28:
29: // display array index and value
30: for ( int counter = 0; counter < array.length; counter++ )
31: System.out.printf( "%5d%8d\n", counter, array[ counter ] );
32: } // end else
33: } // end main
34: } // end class InitArray
35:
36:
37: /**************************************************************************
38: * (C) Copyright 1992-2005 by Deitel & Associates, Inc. and *
39: * Pearson Education, Inc. All Rights Reserved. *
40: * *
41: * DISCLAIMER: The authors and publisher of this book have used their *
42: * best efforts in preparing the book. These efforts include the *
43: * development, research, and testing of the theories and programs *
44: * to determine their effectiveness. The authors and publisher make *
45: * no warranty of any kind, expressed or implied, with regard to these *
46: * programs or to the documentation contained in these books. The authors *
47: * and publisher shall not be liable in any event for incidental or *
48: * consequential damages in connection with, or arising out of, the *
49: * furnishing, performance, or use of these programs. *
50: *************************************************************************/