第二次作业
1. 显示当前时间，并输出上午(0-12)好,下午好(13-17),晚上好(18-23)
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1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <% 3 String path = request.getContextPath(); 4 String basePath = request.getScheme() + "://" 5 + request.getServerName() + ":" + request.getServerPort() 6 + path + "/"; 7 %> 8 9 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">10 <html>11 <head>25 </head>2627 <body>28 <%29 //Java注释30 //Calendar 提供了一个类方法 getInstance，以获得此类型的一个通用的对象。31 //Calendar 的 getInstance 方法返回一个 Calendar 对象。32 Calendar c = Calendar.getInstance();33 int year = c.get(Calendar.YEAR);//获取年34 int month = c.get(Calendar.MONTH) + 1;//获取月份35 int date = c.get(Calendar.DATE);//获取天数36 int hour = c.get(Calendar.HOUR_OF_DAY);//获取小时37 int minute = c.get(Calendar.MINUTE);//获取分钟38 int second = c.get(Calendar.SECOND);//获取秒39 String str = "";40 if (hour >= 0 && hour <= 12) {41 str = "上午好！";42 } else if (hour > 12 && hour <= 17) {43 str = "中午好！";44 } else if (hour >= 13 && hour <= 18) {45 str = "下午好！";46 } else if (hour > 18 && hour <= 23) {47 str = "晚上好！";48 }49 %>50 <table border="1" align="center">5152 <tr align="center">53 <td>现在时间为:<%=year%>-<%=month%>-<%=date%> <%=hour%>:<%=minute%>:<%=second%></td>54 </tr>55 <tr align="center">56 <td><%=str%></td>57 </tr>5859 </table>6061 </body>6263 </html> |
2. 使用声明方法,在页面调用该方法,判断2023是不是闰年
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> </head> <!--HTML注释语句--> <body> <h1>判断闰年</h1> <%! String panduan(int a){ if((a%4==0&&a%100!=0)||a%400==0){ return "闰年"; }else{ return "平年"; } } %> <% int a=2023; out.print("2023为"+panduan(a)); %> </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 import="java.util.Date" %> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <body> <h2>
</h2>
</body>
<%--jsp注释--%>
<%
for (int i = 100; i <= 500; i = i+100) {
%>
<hr width="<%=i%>" color="red">
<%
}
%>
</html>
