```java Lock lock = new ReentrantLock(); public int getNext(){ lock.loc...

JSON Object enclosed within braces, { } – Example: { "name": "html", "ye...

Reflection A way for a program/application to learn about itself, change...

Proxy 代理角色：代理對象內(nèi)部含有目標(biāo)對象的引用，從而可以在任何時候操作目標(biāo)對象羹令；代理對象提供一個與目標(biāo)對象相同的接口，以便可以在任何時候替...

JVM 通過在實(shí)際的計(jì)算機(jī)上仿真模擬各種計(jì)算機(jī)功能來實(shí)現(xiàn)的老充。由一套字節(jié)碼指令集、一組寄存器螟左、一個棧啡浊、一個垃圾回收堆和一個存儲方法域等組成觅够。JVM...

File An abstract representation of file and directory pathnames. public ...

Generic Note that type parameters can represent only reference types, no...

Collection 是一個接口 The JDK does not provide any direct implementations of ...

Annotation attached with class, interface, methods, fields annotation的內(nèi)容...