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环境搭建,运行出来一个JSP页面,显式hello 2.英文字母表 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); Strin 阅读全文
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第一题内部存储空间文件操作 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://sche 阅读全文
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1.三个界面,界面1点击按钮使用显式意图开启界面2.界面2点击按钮隐式意图开启界面3 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/andr 阅读全文
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1.返回键实现对话框弹出是否退出应用程序 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:l 阅读全文
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1.创建3个界面 第一个界面有3个button <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http 阅读全文
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1. 2. <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="300dp"androi 阅读全文
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package homework_15; public abstract class ColaEmployee { protected String m_Name; protected int m_Month; public ColaEmployee(){} public ColaEmployee( 阅读全文
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package homework_Package; public class Vehicle { protected String m_Brand; protected String m_Color; protected double m_Speed; public Vehicle(){} publ 阅读全文
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public class Point { int X; int Y; public Point(){} public Point(int x,int y){ X=x; Y=y; } public void movePoint(int dX,int dY){ X+=dX; Y+=dY; } publi 阅读全文
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1.编写一个方法,实现冒泡排序(由小到大),并调用该方法 import java.util.Scanner; public class DaiMa { /** * @param args */ public static void main(String[] args) { //1.编写一个方法,实 阅读全文