计算器JAVA小程序，实现了加减乘除等基本运算。-Calculator JAVA applet, realize the basic operation such as add, subtract, multiply and divide.

这是一个可以进行加减乘除的计算机程序,实现计算器的功能，还适当地加上了阶乘、正弦、余弦和指数）等运算。-Addition, subtraction, multiplication, and division of a computer program, calculator function. . . . .