Preamble

Loading the J/Link Package

Conversion of Types between Java and the Wolfram Language

Creating Objects

Getting Information about Classes and Objects

Quitting or Restarting Java

Version Information

The Java Console Window

Using JavaBeans

Hosting Applets

Periodical Tasks

Ragged Arrays

Implementing a Java Interface with Wolfram Language Code

Introduction

A Beep Function

Formatting Dates

A Progress Bar

A Simple Modal Input Dialog

A File Chooser Dialog Box

Sharing the Front End: Palette-Type Buttons

Real-Time Algebra: A Mini-Application

GraphicsDlg: Graphics and Typeset Output in a Window

BouncingBalls: Drawing in a Window

Spirograph

A Piano Keyboard

Preamble

MathLink and KernelLink

MathLinkFactory

MathLinkException

Expr

PacketListener

High-Level User Interface Classes

Using Listen and Connect Modes

Using a Remote Kernel

Managing Links

Packet Functions

Error Handling

Link State

Putting

Getting

Messages

Marks

Complex Class

Yield and Message Handlers

Constants

Evaluate

Waiting for the Result

The "evaluateTo" Methods

Sending Java Object References

Interrupting, Aborting, and Abandoning Evaluations

Support for PacketListeners

The handlePacket() Method (Advanced Users Only)

Methods Valid Only for "StdLinks"

WSTP Packets

The WSTP "Packet Loop"

Sending an Evaluation

Reading the Result

The "evaluateTo" Methods

Using the PacketListener Interface

The PacketPrinter Class for Debugging

Using EnterTextPacket

Preamble

MathCanvas and MathGraphicsJPanel

A Sample Program That Displays Graphics and Typeset Results

evaluateToImage() and evaluateToTypeset()

Motivation for the Expr Class

Methods in the MathLink Interface for Reading and Writing Exprs

Exprs as Replacements for Loopback Links

Exprs as a Means to Get String Representations of Expressions

Exprs as Arguments to KernelLink Methods

Examining and Manipulating Exprs

Disposing of Exprs

Introduction

ConsoleWindow

MathSessionPane

BracketMatcher and SyntaxTokenizer

InterruptDialog