BeanShell是一个小型的，免费的，可嵌入式的，具有面向对象脚本语言特性的Java代码解释器。它是用Java语言写的。它能执行标准的Java语句和表达式，还自带简单的脚本命令和语法。它把编程对象当成一个简单的方法，这很像Perl和Javascr ipt.

你可以在写Java测试或调试时使用BeanShell，也可以用它作为你的应用程序的脚本引挚。简而言之，BeanShell可以动态的解释JAVA语言。也就是说BeanShell在许多方面对于Java的用处就像Tcl/Tk对于C的用处一样：BeanShell是可嵌入式的---你可以在运行时从你的应用程序调用BeanShell去动态的执行Java代码或是为你的应用程序提供脚本扩展。相反，你也可以从BeanShell调用你的应用程序及其对象，它可以让JAVA对象和API动态运行。正因为BeanShell是用JAVA写的，所以它可以和你的应用程序运行在同一个JVM空间内，你也可以自由的传递实时对象的参照(References)到脚本代码中并且作为结果返回。-BeanShell is a small, free of charge, to be embedded with object-oriented scr ipting language features of Java code interpreter. It is written in the Java language. It implementation of the standards Java language and expression, also own simple scr ipt commands and syntax. Programming Object put it as a simple method, much like Perl and Javascr ipt. You can write Java testing or debugging use BeanShell can also use it as your application's scr ipting engine. In short, the dynamics of BeanShell can explain Java language. BeanShell is in many respects for the usefulness of Java as Tcl / Tk for the usefulness of the same C : BeanShell can be embedded -- you can run from your application to BeanShell called dynamic execution of Java code, or for your application for extension of the scr ipt. I