COBOL

Based on Enterprise COBOL 6.2
Covers vast range of topics
Has 200 full examples
Covers QSAM and VSAM files, DB2 and CICS
Includes modern topics DLL, Language Environment
Includes RECURSIVE Program
Handling of JSON and XML data
Communication with Java
Inter language Programming with C
z/OS JSON Parser
XML Toolkit for z/OS
JZOS Batch Launcher and Toolkit