From COBOL to OOP
Written for the experienced COBOL programmer, this nuts and bolts guide offers a comprehensive introduction to OOP techniques, and provides a migration of 10 million lines of COBOL code to object-oriented programming.
TABLE OF CONTENTS From COBOL to OOP
Appendix B: Sample Solutions
Overview
All solutions are on the book CD
This appendix contains sample solutions for the tasks from the tutorial sections. To stay within the limits of this book, this chapter contains only selected solutions, mostly in one programming language. The CD to this book includes all solutions, both in Delphi and Java code.
All sample solutions in this chapter are intended to serve as examples, showing how a problem could be solved. There may be other more efficient solutions. The following sample solutions are intended to provide basic concepts, to serve as a reference, and to encourage you to work out different solutions to similar problems.
B.1 Solutions to Chapter 3
B.1.1 Exercises in Section 3.1.5
Task 1 (20 minutes): Declarations
Delphi
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accountNumber: Integer;
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accountBalance: Real;
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ch: Char;
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short: Shortint;
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exactValue: Double;
Java
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int accountNumber;
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float accountBalance;
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char ch;
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byte short;
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double exactValue;
Task 2 (30 minutes): Boolean Expressions
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(x < z) and (y < z) and (x < y) or (x >= z) and (x < y) <span class="inlinemediaobject"><img alt="Image from book"> border="0"> height="10"> id="IMG_72"> src="https://images.books24x7.com/bookimages/id_7056/figu300_1.jpg"> title=""> width="20"></span> ((x < z) and (y < z) and (x < y)) or ((x >= z) and (x < y)) <span class="inlinemediaobject"><img alt="Image from book"> border="0"> height="10"> id="IMG_73"> src="https://images.books24x7.com/bookimages/id_7056/figu300_2.jpg"> title=""> width="20"></span> ((y < z) and (x < y)) or ((x >= z) and (x < y)) <span class="inlinemediaobject"><img alt="Image from book"> border="0"> height="10"> id="IMG_74"> src="https://images.books24x7.com/bookimages/id_7056/figu300_3.jpg"> title=""> width="20"></span> (x < y) and ((y < z) or...
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