import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class TaxPriceServlet extends HttpServlet { //methd="get"に対応 @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html; charset=Windows-31J"); PrintWriter out = response.getWriter(); String price_st = request.getParameter("price"); //税込み計算 int price = Integer.parseInt(price_st); //四捨五入する int taxPrice = (int)Math.round(price * 1.05); out.print("税込み金額:" + taxPrice + "円"); }//doGet() }//class