import java.io.*; import javax.servlet.*; import javax.servlet.http.*; public class Kingaku extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException{ response.setContentType("text/html; charset=Shift_JIS"); PrintWriter out = response.getWriter(); request.setCharacterEncoding("Shift-JIS"); String ini = getInitParameter("zeiritsu"); int zeiritsu = 0; if (ini == null){ zeiritsu = 0; }else{ zeiritsu = Integer.parseInt(ini); } int sale = 100000; out.println(""); out.println("
"); out.println("");
out.println("税率は" + zeiritsu + "%です。
");
out.println("お買い上げ金額は" + sale + "です。
");
sale = sale * (100 + zeiritsu) / 100;
out.println("消費税込みの金額は" + sale + "です。");
out.println("