subtractaction.java

使用myeclipse开发的有加、减、乘、除功能的B/S模式的计算器

package action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import biz.Calculator;

import framework.Action;

public class SubtractAction implements Action {

	private Calculator biz=new Calculator();
	public String execute(HttpServletRequest request){
		double num1=Double.parseDouble(request.getParameter("num1"));
		double num2=Double.parseDouble(request.getParameter("num2"));
		double result=biz.subtract(num1, num2);
		request.setAttribute("result", result);
		return "add_result.jsp";
	}


}