[6.1：Java：小案例](1%EF%BC%9AJava%E5%B0%8F%E6%A1%88%E4%BE%8B.md) [6.2：Java：this 关键字](2%EF%BC%9AJava%EF%BC%9Athis%E5%85%B3%E9%94%AE%E5%AD%97.md) [6.3：Java：super 关键字](3%EF%BC%9AJava%EF%BC%9Asuper%E5%85%B3%E9%94%AE%E5%AD%97.md) [6.4：Java：static 关键字](4%EF%BC%9AJava%EF%BC%9Astatic%EF%BC%9A%E5%85%B3%E9%94%AE%E5%AD%97.md) [6.5：Java：final关键字](5%EF%BC%9AJava%EF%BC%9Afinal%E5%85%B3%E9%94%AE%E5%AD%97.md) [6.6：Java：instanceof 运算符](6%EF%BC%9AJava%EF%BC%9Ainstanceof%E8%BF%90%E7%AE%97%E7%AC%A6.md) [6.7：Java：面向对象之封装](2%EF%BC%9AJava%EF%BC%9A%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E4%B9%8B%E5%B0%81%E8%A3%85.md) [6.8：Java：面向对象之继承](3%EF%BC%9AJava%EF%BC%9A%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E4%B9%8B%E7%BB%A7%E6%89%BF.md) [6.9：Java：面向对象之多态](4%EF%BC%9AJava%EF%BC%9A%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E4%B9%8B%E5%A4%9A%E6%80%81.md)