一、进制转换

程序功能：在窗口中创建单选框、文本区域、单行文本框等组件，并实现根据用户输入的10 进制数，选择不同选项可转换为2、8、16 进制数。二、简单计算器

程序功能：在窗口中输入操作数1和操作数2，选择加减乘除中的一种运算，点击“计算”按钮，得到结果。三、键盘鼠标响应

程序功能：在窗口中用鼠标左键和右键单击时，窗口下方显示哪个键被点击，坐标是多少；当键盘上某个键被点击时，窗口下方显示这个键的名称。-First, the binary conversion

Program features: create a single box, text area, single-line text boxes and other components in the window and realized according to decimal input by the user to　different options can be converted to decimal 8, 16. Second, a simple calculator

Program features: input operand 1 and operand 2 in the window,　Math in one operation, click on the　calculate　button to get the results. Third, the keyboard and mouse response

Program features: When you click on the window with the left and right-click the window below shows which key is clicked, how much coordinates　when a key on the keyboard is clicked, the bottom of the window displays the name of the key.