IP屬地:北京
http://www.runoob.com/java/java-abstraction.html 在面向?qū)ο蟮母拍钪?,所有的?duì)象都是通過類來描繪...
http://www.runoob.com/java/java-polymorphism.html 多態(tài)是同一個(gè)行為具有多個(gè)不同表現(xiàn)形式或形態(tài)的...
http://www.runoob.com/java/java-override-overload.html 重寫(Override) 重寫是子...
http://www.runoob.com/java/java-inheritance.html 概念: 繼承就是創(chuàng)建分等級(jí)層次的類,讓子類繼承...