package util.calculator.calculate;

/**
 * Created by Bruce-Jiang on 2016/9/29.
 *
 */
public abstract class AbstractCalculator {
    public abstract Object arithmetic(String exp);
}

@@ -123,16 +123,105 @@
 lator %7B%0A
+    /**%0A     * %E6%8A%BD%E8%B1%A1%E6%96%B9%E6%B3%95%EF%BC%8C%E7%94%A8%E4%BA%8E%E7%BB%9F%E4%B8%80%E8%AE%A1%E7%AE%97%EF%BC%8C%E5%90%84%E7%A7%8D%E7%B1%BB%E5%9E%8B%E7%9A%84%E6%95%B0%E6%8D%AE%E4%BB%A5%E5%8F%8A%E5%90%84%E7%A7%8D%E7%B1%BB%E5%9E%8B%E7%9A%84%E8%AE%A1%E7%AE%97%0A     * @param exp %E8%A1%A8%E8%BE%BE%E5%BC%8F%0A     * @return%0A     */%0A
     publ

add Calculator moudel which is able to deal integer or biginteger with four mixed computing