Guides

Getting Started - for the J beginner.

FAQs

Language FAQ about the core language
General FAQ in general
Compilation of Beginners' Questions accumulation of beginner questions from which may be extracted a beginner's FAQ

Frameworks

• JDB, a J database

• OpenGL, a 3D graphics API

• Plot package for business and scientific graphics

• Publish, a report generation framework with PDF output

For J602:

• Grid, an efficient spreadsheet control for J

• Project Manager, application IDE and build system

• Splitter, a splitter control for J

• Treeview, a treeview control for J

Technologies

• Ctags provide a means of jumping to name definitions

• Database J implementations, relational operations, RDBMS interfaces

• Interfaces between J and .NET, Java, DLLs, third-party applications; Cocoa and Objective C on the Mac

• Literate Programming encourages good coding style and well-written integrated documentation

• Folders and Projects folders and project management

• Parsing Lexical, syntactic, semantic analyses and execution

• Persistence Saving and loading J objects

• Strings strings and text manipulation resources

• Typesetting characters, fonts, encodings, output formats, on screen or printer

• Web technologies, CGI framework, web server integration

General

• Auto Open Opening J script files, in J, from the Windows Explorer

• Auto Start Automatically launch J scripts from file browser and web browser

• Asynchronous GUI Updates during long running processes to appear responsive to the user

• Batch Test Code-centric comparative performance tester of code cases over data series

• CGI with J Some considerations and examples

• Configure Development system configuration

• Constants J constant description syntax

• Continuations resuming procedure execution and inversion of control for event-driven patterns

• Custom User Installation Separating User data from J program installation

• Defining Verbs Defining explicit and tacit verbs

• Directory Match Directory Match utility

• FastCGI with J Some considerations and examples

• GUID Generator Stand-alone GUID generators for Start menu or command line

• iOS The iPhone and iPad platform

• iPad Tips Tips for using the iPad user interface with JHS

• J Web Server Building a web server using J

• J8 Standalone Developing cross-platform, standalone applications in J8

• Jqt Child Classes Child classes for Jqt wd

• Lazlo Using J and Lazlo

• Lexical Closure Answers to the accumulator generator challenge

• Multi-page Forms Using "creategroup" command and a number of sub-forms

• Multiple Verb Arguments Passing multiple arguments to a verb

• Named Noun Internals Internal structure of named nouns

• Performance Monitor A step-by-step tutorial with examples

• Primitives A more literate form of J using words instead

• Reading Tacit Verbs How to read tacit verbs

• SCGI with J Some considerations and examples

• Standalone Applications An application script with other required files and J binaries

• Startup What J runs when you start it

• Syntax Coloring Syntax coloring for text editors

• Subversion Versioning system hosted at jsoftware.com

• Text Titles with Plot Quickly create a bitmap with a piece of text

• Unicode Support for unicode in code development and applications

• Getting Started With Unicode A simple-stupid guide to steer you round common pitfalls for the Unicode virgin

• Windows Programming Many entertaining Graphical User Interface (GUI) examples, good for beginners

• Windows Progress Dialog Visual feedback for long-running process