1. JZOS (Java Batch Launcher and Toolkit for z/OS) Quick Start Guide
JZOS Quick Start Guide
JZOS (Java Batch Launcher and Toolkit for z/OS) Quick Start Guide 1

2. JZOS (Java Batch Launcher and Toolkit for z/OS) Overview
The JZOS Batch Launcher and Toolkit is a set of tools that helps you to develop z/OS Java applications that run in a traditional batch environment, and that access z/OS system services.
The JZOS Batch Launcher is a native launcher for running Java applications directly as batch jobs or started tasks. Java applications can be fully integrated as job steps to augment existing batch applications.
The JZOS Toolkit is a set of Java classes that give Java applications direct access to traditional z/OS data and key z/OS system services.
The combination of the launcher, data access, added system services, and environmental enhancements make running Java on z/OS as batch jobs easier, particularly for Java application developers. 2

3. How to get a quick start on JZOS
1) Scan the following documentations to get a feel about JZOS:
JZOS Overview
JZOS Toolkit APIs
JZOS Batch Launcher and Toolkit Installation and User's Guide ftp://public.dhe.ibm.com//software/Java/Java80/JZOS/jzos_users_guide_v8.pdf
2) Follow JZOS video tutorials to write and deploy a JZOS java applications in minutes:
JZOS on developerWorks:z Systems Developer Community
3) Download JZOS sample code to try out more JZOS features:
JZOS Sample Code
ftp://public.dhe.ibm.com//software/Java/Java80/JZOS/jzos_samples.zip 4