java api是提供给用户的编程接口。通过提供api查询，为你开发Java程序提供了方便-java api is to provide to the user programming interface. Api through the provision of inquiries, the development of Java for you to provide a convenient

java的api的查询对照表，包括java语言中使用到的各种包，类、接口、方法。-java' s api query table, including the use of java language to a variety of packages, classes, interfaces, methods.