吕金含
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1.新建一个Student的抽象类;
package com.eduask.testabstract;
//定义一个Student抽象类;
public abstract class Student {
public abstract void stu_Id();
public abstract void stu_Name();
public abstract void stu_Pwd();
}
2.新建一个Teacher的接口;
package com.eduask.testabstract;
//定义一个Teacher接口;
public interfa ...
- 2016-08-14 10:32
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17.1新建一个Demo1的接口;
packagecom.eduask.entity4;
//定义一个Demo1接口;
publicinterfaceDemo1 {
//定义四个方法;add submuldiv;
voidadd(inta,intb);
voidsub(inta,intb);
voidmul(inta,intb);
voiddiv(inta,intb);
}
17.2 新建一个Demo2Impl的实现接口的类;
- 2016-08-14 10:31
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1.打开Myeclipse工作路径
2.找到工作路径下的：E:\MyEclipse 10\.metadata\.plugins\org.eclipse.core.runtime\.settings
3.删掉 com.genuitec.eclipse.ast.deploy.core.prefs这个文件
4.重新启动Myeclipse
- 2016-08-14 10:30
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1.java代码
public class Test {
/**
* 开启 assert
* 1. 菜单 run
* 2. run configurations
* 3. 选择 Arguments
* 4. VM arguments 文本框中输入： -ea 表示开启 -da 表示禁止断言。
* @param args
*/
public static void main(String[] args) {
String a="abcdefg";
String b="abcdefg";
String c=new String( ...
- 2016-08-14 10:29
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1.User类;
public class User {
//给定一个对象最终的;
public static final User user=new User();
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public static User getUser() {
return user;
}
}
2.TestUser类；
public class ...
- 2016-08-14 10:28
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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>大数据0509笔记</title></head><body><!-- 标签b的演示--><b>这是加粗的标签</b>
- 2016-08-14 10:26
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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>表单的演示</title></head><body><table border="1px" style="width: 400px"; border-collapse:collapse;><tr>
- 2016-08-14 10:25
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>form的测试演示</title>
</head>
<body>
<h2 align="center">用户注册</h2>
<form action="http://www.baidu.com" method="get&quo ...
- 2016-08-14 10:24
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>省市菜单</title>
<script>
var arr=[['选择市'],
["东城区","西城区","朝阳区","海淀区","丰台区","石景山区" ...
- 2016-08-14 10:21
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1.java代码如下：
packagecom.ask.cookie;
importjava.io.IOException;
importjava.io.PrintWriter;
importjava.util.ArrayList;
importjava.util.LinkedList;
importjava.util.List;
importjavax.servlet.ServletException;
importjavax.servlet.http.Cookie;
importjavax.servlet.http.HttpServle ...
- 2016-08-14 10:15
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1.商品显示java代码：
package com.ask.cookie;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.LinkedHashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax ...
- 2016-08-14 10:14
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packagecom.ask.cookie;
importjava.io.IOException;
importjava.io.PrintWriter;
importjava.sql.Date;
importjavax.servlet.ServletException;
importjavax.servlet.http.Cookie;
importjavax.servlet.http.HttpServlet;
importjavax.servlet.http.HttpServletRequest;
importjavax.servlet.htt ...
- 2016-08-14 10:12
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1.编写一index.jsp文件，代码如下:
<input type="button"value="点击获得何种浏览器"onclick="getXml()">
<script type="text/javascript">
functiongetXml(){
varxml;
if(window.XMLHttpRequest){
xml=newXMLHttpRequest();
}else{
xml=newActiveXObject(&quo ...
- 2016-08-14 10:10
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//通过id获得点击事件;var input=document.getElementById("in");input.onclick=function(){//创建ajax引擎xmlhttprequest对象var xhr=getXhr();//监听ajax引擎的状态改变函数xhr.onreadystatechange=function(){if (xhr.readyState==4) {
- 2016-08-14 10:09
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1.java程序:
package com.eduask;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRespo ...
- 2016-08-14 10:08
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