Development of assistive system for the blind to learn Java programming

盲人辅助系统研制完成。通过触觉和听觉方法实现Java编程。该系统由如下所示的三种软件组成。它们都具有将盲文输出到盲文显示终端的功能，并且在不抑制使用中的屏幕阅读器的语音输出的情况下工作。文本编辑器：除了具有编辑文本数据所需的基本功能外，还具有与Java编译器配合的功能。当被请求时，它还会通知用户当前位置（行号和方法名）。提纲函数显示当前编辑的Java源程序的结构。替代命令提示符：它使盲人用户能够在命令行模式下操作Windows系统。2 .通过盲文显示终端和语音输出，在屏幕上读取输入命令、执行结果、系统信息等字符串。编译器的前置处理器：它以与Java标准编译器javac相同的方式在命令行模式下操作。但是如果检测到任何错误，就会打开一个窗口来显示错误列表。选择列表中的一个项目，可以通过文本编辑器直接访问发生错误的源代码行。实验结果表明，该系统工作正常，足以帮助盲人练习Java编程。

An assistive system for the blind was developed and completed. It enables the Java programming by tactile and hearing methods. This system consists of the three sorts of software shown below.Each of them has the function to output braille onto a Braille display terminal, and works without suppressing the speech output of the screen reader in use.1. Text editor :In addition to the basic functions required for editing text data, it has the functions to cooperate with Java compiler. It also informs the user of the current location (line number and method name) of the cullet when requested. The outlining function shows the structure of the Java source program currently edited.2. Alternative command prompt :It enables a blind user to operate the Windows system in command line mode. He/she can read character strings on the screen such as input command, execution result, system message etc. by means of Braille display terminal and speech output.3. Front processor for compiler :It is operated in command line mode in the same way as the Java standard compiler javac. But if any error is detected, a window is opened to display the error list. Choosing one of the item in the list, the line of source code in which the error occurred can be directly accessed through the text editor.The result of an experimentation showed that the system worked properly and was enough useful to help the blind in practicing Java programming.