file:day11【final、权限、内部类】.pptx file:day10【接口、多态】.pptx file:day09【继承、super、this、抽象类】.pptx file:day08【String类、static、Arrays类、Math类】讲义.docx file:day07【Scanner类、Random类、ArrayList类】.pptx file:day06【类与对象、封装、构造方法】.pptx file:day05【数组】-讲义.docx file:day04【IDEA、方法】-作业.java file:day02 【数据类型转换、运算符、方法入门】.pptx file:day01【前言、入门程序、常量、变量】.pptx file:day11-code.zip file:day11_20_发红包案例_手气红包随机分发.avi file:day11_17_接口作为方法的参数和或返回值.avi file:day11_15_类作为成员变量类型.avi file:day11_12_局部内部类的final问题.avi file:06-笔记本电脑案例分析.png file:05-对象的上下转型.png file:04-使用多态的好处.png file:02-接口的内容小结.txt file:01-生活中接口的举例.png file:day10_24_笔记本USB接口案例_实现.avi file:day10_22_用instanceof关键字进行类型判断.avi file:day10_21_对象的向下转型.avi file:day10_18_多态中成员方法的使用特点.avi