提示当编译器找不到符号时，是什么原因？谢谢!

JAVA 2面向对象程序设计(随书范例程序)10-12.rar-Java 2 object-oriented programming (with the book paradigm procedures) 10-12.rar

Java Maze3D迷宫游戏源码，浏览器上只要安上JAVA解释器就能运行，三维显示迷宫，点击 "New" 按钮开始迷宫之旅, 找不到出口的时候点击"Solve" 按钮显示红色的出口线路，点击"Clear" 清除解答。按上、下、左、右光标键可以单步找出口。-Maze Game Java Maze3D source, as long as the browser installed on JAVA interpreter will be able to run a maze of three-dimensional display, click " New" button to start journey maze, can not find time to click on the export of " Solve" button to show the exports of the red line , click " Clear" to clear answers. By up, down, left and right cursor keys can be single-step to find export.

野生动物系统的JAVA源码, 野生动物系统的JAVA源码-Wildlife JAVA source systems, wildlife system JAVA source

不错的源代码，可以参考-good source code can reference

数字图书馆的互操作接口-Digital Library interoperable interface

该系统利用bulej开发环境编写出的计算器系统，可以进行加减乘除等功能！-The system USES bulej development environment, write a calculator systems, can add, subtract, multiply and divide function!

java结合数据库编成的电话记录程序-java database integration into the telephone records procedures

在网页上输入维文字符实例.-input on the website of the text characters peacekeeping examples.

这里有很多实用的java例子代码，希望对大家学习java有所帮助。-There are many practical examples of java code, and want to help them to learn java.

此程序实现了用java编写系统托盘。使用了jdk中的java.awt.SystemTray-The realization of this procedure to prepare the system tray using java. The jdk used java.awt.SystemTray