本文主要浅述了在软件开发背景下,JAVA语言的一些基本的知识和理论框架,从JAVA语言的在软件开发下的基础和JAVA语言在软件开发下的面向对象的程序结构两方面进行了阐述。从JAVA语言的起源、编程思想和基本原则以及JAVA语言的特点三方面详细的对JAVA基础进行了论述。从类、继承、封装、对象的建立与使用多态性、接口和线程对第二部分面向对象的程序结构部分进行了说明。从而用通俗的语言为读者介绍了JAVA语言。-This paper described a light background in software development, some basic knowledge and theoretical framework for JAVA language program structure in software development　under the foundation and JAVA language JAVA language in an object-oriented software development under two aspects are described . Three aspects of the detailed basis for JAVA are discussed　the origin, ideology and basic principles of programming languages ​ ​ as well as the characteristics of JAVA JAVA language. From classes, inheritance, encapsulation, polymorphism object establishment and use, the interface and the thread of the second part of the structure of object-oriented part of the program has been described. Thus simple language for readers of JAVA language.