ACDK is a development framework with a similar target of Microsoft's .NET or Sun's ONE platform, but it uses C++ as a core implementation language. It implements the standard library packages, including acdk::lang, acdk::lang::reflect, acdk::util, acdk::io, acdk::text (including regexpr), acdk::net, acdk::sql, acdk::xml, and more. Flexible allocator/garbage collection, threading, and Unicode are implemented in the core of ACDK. Extensions make C++ objects available for reflection, serialization, aspect-oriented class attributes, and [D]ynamic [M] ethod [I]nvocation. This DMI acts as an universal object oriented call interface to connect C++ with scripting languages (Java, Perl, Tcl, Python, Lisp, Visual Basic, and VBScript) and standard component technologies (CORBA and COM).
FrAid (Fr[actal] Aid) is a programming language that is appropriate for mathematical computations, visualization, batch processing, and more. It features both a standalone application that provides a programming environment for the language and a system for integrating the language with Java. The Java interface allows mathematical equations and formulas to be used with Java code, making it easier to process numerical computations, symbolic computations, imaging, CAD, and more.
Groovy is an agile, dynamic language for the JVM which combines many features from languages like Python, Ruby, and Smalltalk and makes them available to Java developers using a Java-like syntax. It is designed to help get things done on the Java platform in a quicker, more concise, and fun way. It can be used as an alternative compiler to javac to generate standard Java bytecode to be used by any Java project or it can be used dynamically as an alternative language, such as for scripting Java objects, templating, or writing unit test cases.
The Hecl Programming Language is a high-level scripting language implemented in Java. It is intended to be small, extensible, extremely flexible, and easy to learn and use. It is intended as a complement to the Java programming language, not a replacement. As such, it tries to do well what Java doesn't, and leaves those tasks to Java for which it is best suited. It is also easy to add Hecl to Java, or write new Hecl commands in Java. It aims to be a very immediate language so that you can pick it up and start doing useful things with it quickly. Of particular interest is the fact that it's small enough to run on Java-enabled cell phones, so you can quickly script applications for them!
JELAN provides facilities for constructing and invoking LL(1) language lexical analyzers and parsers. These are embedded in the sense that a language can be specified and then used for textual analysis within the same Java program. This avoids the need for a separate generation phase to write and compile a lexical analyzer and parser from the language specification.
Kanaputs is an interpreter for Java. It runs Java code without compilation, as each instruction is executed when you write it. Kanaputs can be embedded very easily into an XML document to add programmatic features. For example, Kanaputs is fully integrated with Ant and provides a way to execute Java within an XML Ant build file. The grammar of the Kanaputs language is very close to the Java grammar but adds some flexible features such as typeless variables and reactive variables.