jsp第二次作业
<%Calendar c=Calendar.getInstance(); int hour=c.get(Calendar.HOUR); System.out.println(hour); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <% if(hour>=0&&hour<=12) { out.print("现在是"+hour+"上午好"); } else if(hour>=13&&hour<=17){ out.print("现在是"+hour+"中午好");} else { out.print("现在是"+hour+"下午好");} %> </head> <body> </body> </html>
2. 使用声明方法,在页面调用该方法,判断2023是不是闰年
闰年:能被4整除但不能被100整除或者能被400整除
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <%int nian=2023; %> <% if(nian%100!=0&&nian%4==0) { out.print("是闰年"); } else if(nian%400==0) { out.print("是闰年"); } else { out.print("不是闰年");} %> </head> <body> </body> </html>
3.表达式+程序段 循环输出5条hr,长度分别为100px-500px
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> 3.表达式+程序段 循环输出5条hr,长度分别为100px-500px <br> <%--jsp注释 --%> <% for(int i=1;i<=5;i++){ %> <hr width="<%=i*50%>px"> <% }%> </body> </html>