리플렉션 or RTTI(Run Time Type Information)

* Java

the classic cast

In C++, the classic cast "(TYPE)" does not perform RTTI.

type-safe downcast

java.lang.ClassCastException

instanceof

java.lang.Object

.getClass()    // Class

java.lang.Class(type?) // Class<T>

Initialization is delayed until the first reference to a static method (the constructor is implicitly static) or to a non-constant static field

c.f. Class.forName()

If there’s a superclass, initialize that. Execute static initializers and static initialization blocks.

.forName()    // object

.getSuperclass()    // object

.getInterfaces    // Class[]

.isInterface() 

.newInstance()

.getName()

.getCanonicalName()    // Java SE5

.getSimpleName()

.getConstructors()    // Constructor[]

.getConstructor()    // Constructor

.getField()    // Field

.getMethods() // java.lang.reflect.Method[]

.getDeclaredMethods()    // java.lang.reflect.Method[]

.getMethod()    // Method

.cast()

.asSubclass()

boolean.class    // or Boolean.TYPE

Constructor

.newInstance(()

Field

.set()

.get()

java.lang.reflect.AccessibleObject

.isAnnotationPresent()

java.lang.reflect.Executable -> AccessibleObject

java.lang.reflect.Method -> Executable

.getAnnotation(Class<T>)    // java.lang.annotation.Annotation

.getAnnotationsByType(Class<T>)    // java.lang.annotation.Annotation[]

.getName()

.invoke()

* C#

is 연산자

as 연산자

typeof 연산자

* C++

typeid 연산자

type_info

.name()

참조 사이트:

http://jjjryu.tistory.com/entry/%EC%96%B4%EB%85%B8%ED%85%8C%EC%9D%B4%EC%85%98%EC%96%B4%ED%8A%B8%EB%A6%AC%EB%B7%B0%ED%8A%B8

https://gyrfalcon.tistory.com/entry/Java-Reflection

https://hamait.tistory.com/317?category=79137