第二周作业
1.p39 实验2 显示当前时间,并输出上午(0-12)好,下午好(13-17),晚上好(18-23)
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body> <h1> <% Date date = new Date(); date.getHours(); %> </h1> <br><%=date.getHours()%>:<%=date.getMinutes() %>:<%=date.getSeconds() %></br> <% if(date.getHours()>0&&date.getHours()<12){ out.print("上午好"); }else if(date.getHours()>12&&date.getHours()<17){ out.print("下午好"); }else if(date.getHours()>17&&date.getHours()<23){ out.print("晚上好"); } %> </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
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> <title></title> </head> <body> <%! public String pb(int year){ if(year%4==0&&year%100!=0||year%400==0){ return "该年是闰年"; }else{ return "该年不是闰年"; } } %> <h2 style="font-family:宋体;fond-size:25;color:blue"> <% String y = pb(2023); out.print(y); %> </h2> </body> </html>
3.表达式+程序段 循环输出5条hr,长度分别为100px-500px
<hr width="<%=i%>" <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <% for (int i = 1; i <= 5; i++){ %> <hr width ="<%=i*100 %>>"> <% } %> </body> </html>