"JTcl" can mean one out of two things: 1. [JTcl Interpreter], an implementation of Tcl (Tool Command Language) written in Java that implements a largecextent,of Tcl 8.4 syntax and commands, limited only by API restrictions of the Java Virtual Machine. It is based on the [JTacl]Iinterpreter from the [TclJava] project. 2. The [JTcl Java bindings for Tcl]