java核心知识点整理.pdf

java核心知识点整理.pdf
1.目录1.2.目录.........................................................................................................................................................1JVM...................................................................面试....................................................................................192.1.线程......................................................................................................................................................202.2.JVM内存区域.....................................................................................................................................212.2.1.程序计数器(线程私有)................................................................................................................222.2.2.虚拟机栈(线程私有)....................................................................................................................222.2.3.本地方法区(线程私有)................................................................................................................232.2.4.堆(Heap-线程共享)-运行时数据区......................................................................................232.2.5.方法区/永久代(线程共享).....................................................................................................232.3.JVM运行时内存.................................................................................................................................242.3.1.新生代..........................................................................................................................................242.3.1.1.2.3.1.2.2.3.1.3.2.3.1.4.Eden区....................................................................................................................................................24ServivorFrom...........................................................................................................................................24ServivorTo...........................................