Demonstrations of COBOL

The demonstrations programs are contained in a .jar file that needs to be imported into your Eclipse workspace.

To access the demonstrations:

  1. Select File > Import.
  2. Choose General > Existing Projects into Workspace and click Next.
  3. Choose Select archive file and browse to /opt/microfocus/VisualCOBOL/demo and double-click samples.jar.

    This opens the list of sample projects.

  4. Select the samples you want from the list and click Finish.
This loads the selected projects into your workspace.

The following samples are supplied:

ADISdemo
Demonstrates how to use the Screen Section to create a character user interface.
Arrays (JVM and Native COBOL)
Demonstrates the COBOL syntax for arrays.
Catalog

Demonstrates various features of OpenESQL technology.

cobolctf
Demonstrates various features of the Consolidated Trace Facility.
Collections (JVM)
Demonstrates how to use the LIST and DICTIONARY collection types in JVM COBOL.
Core (JVM)
This is an introduction in programming in JVM COBOL.
DB2 ECM - Connect
Shows the syntax variants for connecting to and disconnecting from a DB2 database using Type 1 CONNECTs that DB2 LUW supports.
DB2 ECM - Dynamic
Shows how to use dynamic SQL with DB2 LUW to perform various SQL operations.
DB2 ECM - LOB Data Types
Shows how to use the LOB LOCATOR and VALUES functions to retrieve Lob data from DB2 LUW.
DB2 ECM - Select
Shows how to use the singleton SELECT and the cursor-based FETCH statements with DB2 LUW.
DB2 ECM - Whenever
Shows how to use EXEC SQL WHENEVER for error handling, and DB2(MSGAREA) to specify a COBOL variable for retrieving error messages larger than 70 bytes.
db2test1 & db2test2
Demonstrates various features of the DB2 ECM.
Delegate Combining (JVM)
Shows how to combine delegates using the '+' and '-' operators.
Delegates (JVM)
Shows how to use delegates in COBOL for JVM.
Dynamic
Demonstrates various features of the DB2 ECM.
Dynquery
Demonstrates various features of the OpenESQL technology.
Enums (JVM)
Demonstrates how to use enumeration in COBOL for JVM.
Events (JVM)
Shows how to attach a method to an event and then - to detach it.
Exception Handling (JVM)
Shows methods of exception handling in COBOL for JVM.
Extension Methods (JVM)
Demonstrates how to extend methods in COBOL for JVM.
fizzbuzz & fizzbuzzDDUnitTests
Micro Focus Unit Testing Framework samples.
getCustomerIdUnitTests
Micro Focus Unit Testing Framework samples.
Indexers (JVM)
Demonstrates how to use indexers in COBOL for JVM.
Interfaces
Demonstrates the use of interfaces within JVM COBOL.
Iterators (JVM)
Demonstrates how to use iterators in COBOL for JVM.
json
Demonstrates how to use a JSON GENERATE statement.
JVM COBOL to Native COBOL Interop
Demonstrate how COBOL for JVM can interoperate with native COBOL.
lobdemo
Demonstrates various features of the DB2 ECM.
Local Variables (JVM)
Demonstrates how to declare local variables in COBOL for JVM.
MFUnitExamples
Micro Focus Unit Testing Framework samples
mthread
Demonstrates how a main server thread responds to client requests by starting off separate threads to handle that request.
OESQL - Getting Started
Shows how to use static SQL with OpenESQL to perform various SQL operations.
OESQL - Getting Started with JDBC (JVM)
Shows how to use OpenESQL with JDBC and how to connect to a database using either Connection Strings or Data Sources.
OESQL - Shared Connection COBOL to Java (JVM)
Shows how to create a COBOL SQL program JDBC connection and pass it to a Java program to use.
OESQL - Shared Connection Java to COBOL (JVM)
Shows how to create a Java SQL program JDBC connection and pass it to a COBOL program to use.
OESQL - Behavior
Shows how to use the OpenESQL Compiler directives to assist in migrating database applications from the mainframe for offload development.
OESQL - Catalog
Shows the information about all data types supported by the data source, a list of all tables in the data dictionary, and information about the columns in the table 'orders'.
OESQL - Connect
Shows how to use static SQL with OpenESQL to perform various SQL operations.
OESQL - Dynamic
Shows how to use dynamic SQL with OpenESQL to perform various SQL operations.
OESQL - Select
Shows how to use singleton SELECT and cursor-based FETCH statements with OpenESQL.
OESQL - Whenever
Shows how to use EXEC SQL WHENEVER for error handling, and MFSQLMESSAGETEXT to retrieve error messages larger than 70 bytes.
Operator Overloading (JVM)
Demonstrates operator overloading in COBOL for JVM.
Optional Parameters (JVM)
Shows how to define methods with optional parameters and various ways to call such methods, including the use of named parameters.
Properties (JVM)
Demonstrates how to use properties in COBOL for JVM.
SwingBook (JVM)
Demonstrates how to use Java style inner-classes (SHARING PARENT) in JVM COBOL and shows the use of Swing with JVM COBOL. Swing is part of the Java Foundation Classes which provides an API for a graphical user interface (GUI) for JVM programs. The application shows a Swing front-end to the COBOL legacy book program which accesses an indexed data file with book stock information.
PI (Java)
Demonstrates a Java program receiving information from a COBOL program via the run-time system cobcall interface.
ARRAYS (Java)
Demonstrates how to read and update a Java array from procedural COBOL via the run-time system cobcall interface.
PrimTypes (Java)
Demonstrates a COBOL program reading and updating Java primitive types via the run-time system cobcall interface.
Record (Java)
Demonstrates creating a record item which is passed to COBOL which updates and returns the record.
tictac
Demonstrates how to develop native COBOL applications.