类名.class是class对象的句柄，每个被加载的类，在jvm中都会有一个class对象与之相对应，如果要创建新的对象，直接使用class对象的局部class.forName就可以了，不需要用new 类名。 在java中，每个class都有一个相应的class对象，当编写好一个类，编译完成后，在生成的.class文件中，就产生一个class对象，用来表示这个类的类型信息。获得class实例的三中方式： 1.利用对象调用getclass()方法获取该对象的class实例 2.使用Clas...

定义 Python 的 class 比较特别，和我们习惯的静态语言类型定义有很大区别。 1. 使用一个名为 __init__ 的方法来完成初始化。 2. 使用一个名为 __del__ 的方法来完成类似析购操作。 3. 所有的实例方法都拥有一个 self 参数来传递当前实例，类似于 this。 4. 可以使用 __class__ 来访问类型成员。 >>> class class1: def __init__(self): print "initialize..." def test(self): print id(self) >>> a = class1() ...

With the knowledge you now have of the basics of the Java programming language, you can learn to write your own classes. In this lesson, you will find information about defining your own classes, including declaring member variables, methods, and constructors. You will learn to use your classes to create objects, and how to use the objects you create. This lesson also cover...

In the real world, you'll often find many individual objects all of the same kind. There may be thousands of other bicycles in existence, all of the same make and model. Each bicycle was built from the same set of blueprints and therefore contains the same components. In object-oriented terms, we say that your bicycle is an instance of the class of objects known as bicycles. A class is the bluepri...

?php /** * 作用：FTP操作类( 拷贝、移动、删除文件/创建目录 ) * 时间：2006/5/9 * 作者：欣然随风 * QQ：276624915 */ class class_ftp { public $off; // 返回操作状态(成功/失败) public $conn_id; // FTP连接 /** * 方法：FTP连接 * @FTP_HOST -- FTP主机 * @FTP_PORT -- 端口 * @FTP_USER -- 用户名 * @FTP_PASS -- 密码 */ function __construct($FTP_HOST,$FTP_PORT,...

越来越怀疑php的面象对象 php类 的变量 可以有默认值 new 一下 不需要初始化 任何变量就可以 是一个对象 个人感觉！ 请指教！ 别扔砖头啊 谢谢

name = $name; $this->age = $age; $this->sex = $sex; $this->address = $address; } function getName() { return $this->name; } function getAge() { return $this->sex; } function getSex() { return $this->sex; } function getAddress() { return $this->address; } } $bianjiang = new Persion('bianjiang',23,'男','吉林省集安市'); $user = array( $bi...

Hi all, I was reading the Thinking in c++ by Bruce Eckel, and learnt that even strcture can have the member functions and can be inherited. Now I am in dillema about these structures and classes. How both of these differ. Help me to understand these. thks in advance, OverSea

public class Object { private static native void registerNatives(); static { registerNatives(); } public final native class getclass(); ...... } 请教这里的native class getclass（）是怎么回事？ 有native method，也有native class么？难道是getclass()的返回值，那应该是Object嘛！怎么是class呢？因为native的原因么？