Class Layout Copyright © 2020 by Stephen C. Dewhurst and Daniel Saks 1 Class Layout Steve Dewhurst Semantics Consulting, Inc. www.stevedewhurst.com 1 Copyright © 2020 by Stephen C. Dewhurst and Daniel Daniel Saks C++ Classes  Only non-static data declarations in a class definition add anything to the size of class objects. class HR { public: ~~~ void terminator(Salary *, Hourly *, Temp *); private: Stephen C. Dewhurst and Daniel Saks 1 7Class Layout Copyright © 2020 by Stephen C. Dewhurst and Daniel Saks 2 sizeof(Class Object)  sizeof applied to the HR class yields the same result as sizeof applied

现�����的方法��为抽象方法� 抽象方法������abstract��� ��抽象方法的类����为抽象类�����abstract��� CODE ± 抽象类示例 1 public abstract class Animal { //定义为抽象类 2 private int age; 4 public void setAge(int age) { 5 this.age = age; 6 } 8 return age; 10 } 12 public abstract void eat(); //抽象方法 13 } 4 29 ����类 CODE ± 抽象类继承 1 public class Person extends Animal { 2 private String name; 3 public void setName(String name) { 4 this.name } 9 public void eat() { //重写方法 10 System.out.println("��→��→���→��→���"); 11 } 12 } 1 public class Bird extends Animal { 2 public void fly(){ 3 System.out.println("我���!"); 4 } 5 public void eat(){

个 时候就必须用到反射——运行时动态加载需要加载的对象。 一个例子 Struts2 框架开发中会在 struts.xml 里配置 Action 1 class="ouc.j2ee.action.LoginAction" method="execute"> 2 index.jsp 3 class 属性创建 LoginAction 的实例，并用 invoke 方法来调用 execute 方法。 这个过程是基于 Java 反射框架完成的。 大纲 反射 类的加载、连接和初始化 类加载器 使用反射生成并操作对象 本节习题 反射的主要用途„ O 依赖注入 有两个组件 A 和 B，A 依赖于 B。 1 public class A { 2 public setB() 方法： 1 public class A { 2 private B b; 3 public void importantMethod() { 4 b.usefulMethod(); 5 ... 6 } 8 public void setB(B b) { 9 this.b = b; 10 } 11 } 1 class="ouc.j2ee.sample

of each case’s code. You use for-in to iterate over items in a dictionary by providing a pair of names to use for each key-value pair. 1 let interestingNumbers = [ 2 "Prime": [2, 3, 5, 7, 11, 13] by following its name with a list of arguments in parentheses. Use -> to separate the parameter names and types from the function’s return type. 1 func greet(name: String, day: String) -> String { 2 y += 5 5 } 6 add() 7 return y 8 } 9 returnFifteen() Functions are a first-class type. This means that a function can return another function as its value. 1 func makeIncrementer()

TEZcgi.Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540 15.5.13 TEZcgi.Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541 15.5.14 TEZcgi.Variables . 19TJSONObject.UnquotedMemberNames . . . . . . . . . . . . . . . . . . . . 588 16.16.20TJSONObject.Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 589 16.16.21TJSONObject.Elements . . sysutils ?? 1.2 Overview The ascii85 provides an ASCII 85 or base 85 decoding algorithm. It is class and stream based: the TASCII85DecoderStream (90) stream can be used to decode any stream with ASCII85

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48