java程序设计与开发课件

第1章Java语言概述·······························(1)1.1Java语言及其产生····························(1)1.2Java的特点································(1)1.3Java的体系结构·····························(3)1.3.1Java的体系结构····························(3)1.3.2Java虚拟机······························(3)1.3.3垃圾回收机制·····························(3)1.