传智播客jsoup教程

import .*; public class Test03 { public static void main(String args) { TreeMap map = new TreeMap(new MyComparator); (“1” “Lucy”); (“2” “Lucy”); (“3” “John”); (“4” “Smith”); (“5” “Amanda”); for (Object key : ) { + “:” + (key)); } } } class MyComparator implements Comparator { public int compare(Object obj1, Object obj2) { String ele1 = (String) obj1; String ele2 = (String) obj2; return (ele1); } }。

//在类中添加静态变量class XXX{public static String a = “”;static{//todo}}//然后在容器初始化时执行：XXX.a = “a”;关于Jquery一般在使用JQuery的时候都会使用到大量的DOM操作，此时就容易出现各种性能问题。

public class HelloWorld {public static void main(String args) {System.out.println(“Hello World”);}}注：String args 与 String args 都可以执行，但推荐使用 String args，这样可以避免歧义和误读。

* 在程序使用(解析)注解：获取注解中定义的属性值1. 获取注解定义的位置的对象 （Class，Method,Field）2. 获取指定的注解* getAnnotation(Class)//其实就是在内存中生成了一个该注解接口的子类实现对象public class ProImpl implements Pro{public String className{return “cn.itcast.annotation.Demo1”;}public String methodName{return “show”;}}3. 调用注解中的抽象方法获取配置的属性值。

public final class Stringimplements java.io.Serializable, Comparable, CharSequence {String类为什么不能被继承呢？

Class.newInstance只能调用public的无参数构造方法public class Main {public static void main(String args) throws InstantiationException,IllegalAccessException{String s = (String) String.class.newInstance;Integer n = (Integer) Integer.class.newInstance;//Interger没有无参数的public构造方法会提示实例化失败}}。

public class LowestLexicography {public static class MyComparator implements Comparator {@Overridepublic int compare(String a, String b) {return (a + b).compareTo(b + a);}}public static String lowestString(String strs) {if (strs == null。

public class PluginManager {static class PluginMgrHolder {static PluginManager sManager = new PluginManager;}private static Context mContext;Map sMap = new HashMap<>;public static PluginManager getInstance {return PluginMgrHolder.sManager;}public PluginApk getPluginApk(String packageName) {return sMap.get(packageName);}public static void init(Context context) {mContext = context.getApplicationContext;}public final void loadApk(String apkPath) {PackageInfo packageInfo = queryPackageInfo(apkPath);if (packageInfo == null。

public InjectedChromeClient(String injectedName, Class injectedCls) {。