runsci.java.bak

本“计算器”可以完成任意的通常借助手持计算器来完成的标准运算。“计算器”可用于基本的算术运算

///////    RunSci.java ///////


public class RunSci
{
    public static void main(String[] args)
           throws java.io.IOException
    {  ScientificEng e = new ScientificEng();
       CalcFace f = new CalcFace(e.keys(), e.precision());
       Calculator x = new Calculator(e, f);
       x.on();
       return;
    }
}