使用Java 编写求一元方程的根,并且是使用小程序完成的-The use of Java for the preparation of one root element equation, and the use of small procedures are completed

java中实现方程式的求解，能够考虑到无解、有解、有两个不同解的情况-java to achieve the solution of equations that can take into account the non-solution, broken, there are two different solutions of