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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <meta http-equiv="Content-Type" conte ...
<head> <title>1234</title> <style> #container{ width:1000px; background:gray; } #header{ height:150px; background:yellow; } #footer{ height:150px; background:blue; } #main{ height:600px; background:black; } # ...
<head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Language" content="en" /> <meta name="GENERATOR" content="PHPEclipse 1.2.0" /> <title>title</ ...
<?php $s= <<<Eof 121234qwer111t<><>>>\g\v\t\t<<a></a>ll1111ll Eof;//定界符,这个Eof必须在行首 echo $s; ?>
在AndroidManifast注册activity,欲想运行一个Activity,得先注册 <activity             android:name=".FirstActivity"             android:label="This is my first Activity" //标题栏             >             <intent-filter > //让FirstActivity,作为主Activity                 <action andro ...
<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/add_item" android:title="add" /> <item android:id= ...
// 操作类中的属性 public static void main(String[] args) throws Exception { Class<?> c1 = null; try { c1 = Class.forName("fanshe.Person"); } catch (ClassNotFoundException e) { e.printStackTrace(); } Object newInstance = c1.newInstance(); Field nameField = null; ...
// 取得一个类的全部方法定义 public static void main(String[] args) { Class<?> class1 = null; try { class1 = Class.forName("fanshe.Person"); } catch (ClassNotFoundException e) { e.printStackTrace(); } Method[] methods = class1.getMethods();// ...
// 反射 // 实例化对象 -> getClass方法 -> 得到完整的包.类名称 public static void main(String[] args) { X x = new X();// 所有对象都是Class类的实例 // 实例化Class类对象 Class<?> class1 = null; Class<?> class2 = null; Class<?> class3 = null; try { //通过静态方法,实例化Class类对象 class1 ...
public class T2 { // 使用enum声明的枚举类型,就相当于定义一个类;此类默认继承类Enum public static void main(String[] args) { //Color.values(); 返回所有枚举的对象 for (Color1 c : Color1.values()) { System.out.println(c.ordinal() + " " + c.getName()); } } } enum Color1 { RED("红色"), BLU ...
//foreach,在类集的应用 public static void main(String[] args) { List<Integer> arrayList = new ArrayList<Integer>(); arrayList.add(1); arrayList.add(2); arrayList.add(3); // for(类 对象 : 集合) for (Integer integer : arrayList) { System.out.println(integer); } }
// Collections,工具类 public static void main(String[] args) { List<Integer> list = new ArrayList<Integer>(); // Collections,为List增加内容 Collections.addAll(list, 10, 1, 2, 34, 5, 6, 653, 211, 23); Iterator<Integer> iterator = list.iterator(); while (iterator.hasNex ...
//在一个循环,同时输出key和value public static void main(String[] args) { Map<String, String> hashMap = new HashMap<String, String>(); hashMap.put("a", "1234"); hashMap.put("m", "oi"); hashMap.put("p", "看"); hashMap.put(& ...
// 字典,Map接口 public static void main(String[] args) { Map<String, String> hashMap = new HashMap<String, String>(); hashMap.put("1", "Brock"); hashMap.put("2", "chris"); hashMap.put("3", "ood");// 增加元素 String s ...
//保存属性,到文件 public static void main(String[] args) { Properties properties = new Properties(); properties.setProperty("a", "Apple"); properties.setProperty("b", "Bitch"); properties.setProperty("c", "CC");// 设置内容 try { ...
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