public class PayableInterfaceTest
1: // Fig. 10.15: PayableInterfaceTest.java
2: // Tests interface Payable.
3:
4: public class PayableInterfaceTest
5: {
6: public static void main( String args[] )
7: {
8: // create four-element Payable array
9: Payable payableObjects[] = new Payable[ 4 ];
10:
11: // populate array with objects that implement Payable
12: payableObjects[ 0 ] = new Invoice( "01234", "seat", 2, 375.00 );
13: payableObjects[ 1 ] = new Invoice( "56789", "tire", 4, 79.95 );
14: payableObjects[ 2 ] =
15: new SalariedEmployee( "John", "Smith", "111-11-1111", 800.00 );
16: payableObjects[ 3 ] =
17: new SalariedEmployee( "Lisa", "Barnes", "888-88-8888", 1200.00 );
18:
19: System.out.println(
20: "Invoices and Employees processed polymorphically:\n" );
21:
22: // generically process each element in array payableObjects
23: for ( Payable currentPayable : payableObjects )
24: {
25: // output currentPayable and its appropriate payment amount
26: System.out.printf( "%s \n%s: $%,.2f\n\n",
27: currentPayable.toString(),
28: "payment due", currentPayable.getPaymentAmount() );
29: } // end for
30: } // end main
31: } // end class PayableInterfaceTest
32:
33:
34: /**************************************************************************
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36: * Pearson Education, Inc. All Rights Reserved. *
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