Table of Contents

I.1 Why Java?  I-1
I.2 Approach of This Book  I-3
I.3 Prerequisites for This Book  I-4
I.4 Obtaining and Installing Java  I-4
I.5 Major Pitfalls of Java on OpenVMS  I-7

1.1 A Little Bit of History and Concept  1-1
1.2 Data Types  1-5
1.3 Everything is a Class (almost)  1-7
1.4 Reference not Pointer  1-8
1.5 The Sandbox  1-8
1.6 Garbage Collection  1-9
1.7 No Include Files or Preprocessor  1-10
1.8 Constructors and Finalizers  1-11
1.9 Arithmetic Operators  1-11
1.10 Relational Operators  1-12
1.11 Boolean Operators  1-12
1.12 Bitwise Operators  1-13
1.13 Assignment Operators  1-13
1.14 Comments  1-13
1.15 Abstract Classes and Methods  1-14
1.16  Inheritance  1-14
1.17 Polymorphism  1-17
1.18 Source Code Organization and Style  1-17
1.19 Modifiers for Data Types and Methods  1-18
1.20 Packages  1-21
1.21 Interfaces  1-22
1.22 Threads  1-23
1.23 Exceptions  1-26
1.24 JAVA$CLASSPATH  1-28
1.25 A Little Lecture on Strings and References  1-28
1.26 Java Follow Up  1-30
1.27 Exercises  1-32

2.1 Goal of This Chapter  2-1
2.2 Order of Development with JNI  2-1
2.3 Creating Linker Option Files for JNI  2-2
2.4 LibGetLogical  2-8
2.5 Programming Assignment 1  2-18
2.6 VMSLogical  2-19
2.7 Programming Assignment 2  2-25
2.8 VMSDate  2-25
2.9 Programming Assignment 3  2-41
2.10 VMSSpawn  2-41
2.11 Programming Assignment 4  2-45
2.12 Words of Warning About LIB$SPAWN()  2-45
2.13 RTL and SYS Followup  2-46
2.14 Exercises  2-47

3.1 The Choices We Make  3-1
3.2 Building What We Need  3-2
3.3 The Native Interface Code  3-29
3.4 One More Indexed File  3-48
3.5 RMS Followup  3-50
3.6 Programming Assignments  3-51
3.7 Exercises  3-51

4.1 Why Use FMS?  4-1
4.2 Our Fms Class  4-2
4.3 FMS Follow Up  4-20

5.1 The philosophy  5-1
5.2 Logical Name Table Modifications  5-3
5.3 Build Command File  5-3
5.4 The Infrastructure MMS Procedure  5-6
5.5 Running Our New Classes  5-18
5.6 Programming Assignment  5-19
5.7 Exercises  5-20

6.1 What to Expect  6-1
6.2 String Dates in Java  6-1
6.3 Importing Data  6-3
6.4 Bulk Reporting Data  6-6
6.5 Creating Our Stats File  6-10
6.6 Programming Assignment 1  6-13
6.7 The Most Report  6-14
6.7 Programming Assignment 2  6-19
6.8 The Due Report  6-19
6.9 Programming Assignment 3  6-23
6.10 The Browse Module  6-23
6.12 The Entry Module  6-32
6.13 The Menu  6-38
6.14 Programming Assignment 5  6-42

7.1 The Intention  7-1
7.2 How Hurt Are You?  7-1
7.3 Programming Assignment One  7-2
7.4 Upgrade Before Continuing  7-2
7.5 Our New Java Class  7-3
7.6 Programming Assignment Two  7-14
7.7 The Support and Open Functions  7-14
7.8 Reading Records  7-20
7.9 Programming Assignment Three  7-25
7.10 Updates and Deletes  7-26
7.11 Programming Assignment Four  7-27
7.12 Writing a Record  7-27
7.13 Follow Up  7-28

8.1 Setting Things Up  8-1
8.2 A Sample Java Program  8-6
8.3 Programming Assignment One  8-10
8.4 Design Considerations  8-11
8.5 Some Serious Flaws  8-12
8.6 Our Main Program  8-15
8.7 Our Prompt Routine  8-19
8.8 The Import Module  8-19
8.9 Stats Creation  8-22
8.10 The Due Report  8-26
8.11 The Dump Report  8-29
8.12 Our Browse Module  8-32
8.13 Programming Assignment Two  8-40
8.14 The Maintenance Module  8-41
8.15 Programming Assignment Three  8-48
8.16 Programming Assignment Four  8-48
8.17 RDB Follow Up  8-48
8.18 JAR Files  8-49
8.19 Java Follow Up  8-50

9.1 Vendor Management Systems and the End of Consulting Firms  9-1
9.2 The Tech Farm  9-4
9.3 Return of the 30-Year System  9-7
9.4 Do You Really Want to Work in IT?  9-13
9.5 Solve the Whole Problem  9-18
9.6 The Mythical Business Analyst  9-23
9.7 The Much Maligned LF/CR  9-29