- P(gun)]
JavaPԇ֪Rc\
JavaṩObject^P(gun)ϵͬһõĘΣObjectObject(jng)ʹõСռJavaPԇ֪RcϣJ(rn)x!
1.@ClassNʽ
// 1. (j)o@ d
String classname = "cn.itcast.reflect.Person";// ļ
Class clazz = Class.forName(classname);// ˌPerson.class
// 2. õˌ֪ʲô ګ@Ì
Object obj = new Person();
Class clazz1 = obj.getClass();// @Ìw
// 3. _ث@ijClass Ҫڂ
Class clazz2 = Person.class;
һJava(chung)ĎNʽ
(1) newZ䄓(chung)@ҊĄ(chung)ķ
(2) \÷ֶ,{(dio)java.lang.Classjava.lang.reflect.ConstructornewInstance()
(3) {(dio)Ìclone()
(4) \÷лֶ{(dio)java.io.ObjectInputStream readObject()
(1)(2)_@ʽ{(dio)Ø(gu)캯(sh) ;(3)ڃ(ni)όЌӰӡԲ{(dio)Ø(gu)캯(sh) ;(4)Ǐļ߀ԭČҲ{(dio)Ø(gu)캯(sh)
2.Java׃Ϸ
$ ĸ_^УĿǔ(sh)ĸ;Ԕ(sh)_^JavaP(gun)I
3.
abstractstaticnativesynchronized
nativeطoϵy(tng)ȥF(xin)JNI{(dio)Õrʹ
4.oB(ti)׃Main(sh)
Main(sh)пֱʹstatic׃ֱʹ÷oB(ti)׃ʹ÷oB(ti)׃Ҫnewʹ
oB(ti){(dio)÷oB(ti)ķ׃(ѽ(jng)ڵĖ|߀ڵĖ|);oB(ti)ֱ{(dio)oB(ti)׃ҽoxֵڷoB(ti)жxoB(ti)׃;
5.L(qun)(ⲿ)
(1)publicԱL(all)
(2)privateֻܱԼLġ
(3)protectedͬһL
(4)default(ĬJ(rn))ͬһеLr]мJ(rn)friendly
6.Java^еĘ(gu)췽
(1)Ę(gu)^б{(dio)Ę(gu)췽
(2)ԼĘ(gu)췽ʹsuper(argument_list){(dio)ûĘ(gu)췽
2.1ʹthis(argument_list){(dio)ñ☋(gu)췽
2.2{(dio)super회(gu)췽ĵһ
(3)Ę(gu)췽Л]@ʾ{(dio)ûĘ(gu)췽tϵy(tng)ĬJ(rn){(dio)ûğo(sh)(gu)췽
(4)(gu)췽мț]@ʾ{(dio)û(gu)췽֛]Пo(sh)Ę(gu)췽tge
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