Java写的实现Rational functional tester项目回放的代码，参数分别问RFT安装地址、项目地址和项目名称。-Written in Java to achieve Rational functional tester Project Playback code parameters are asked RFT installation address, project address and project name.

判断一个数字是否为有理数的java小程序(test if a number is a rational number)