个人完成的小程序，java，超简单的计算器，抽奖器，随机概率小色子实验，五子棋-Personal little programs finish, Java, super simple calculator, draws the device, random probability experiment small piece, renju

应用按钮控件、单行输入控件构建计算器的外观，设计函数实现计算器的功能，从而实现一个简单的计算器软件-Application button control, the appearance of a single line control to construct a calculator, the design function to achieve the function of the calculator, so as to achieve a simple calculator softw