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java 中 AAA a = new BBB() AAA 和 BBB 不一样 是什么情况呢？

  •  1      
  •   6god · Sep 15, 2015 · 1872 views
    This topic created in 3919 days ago, the information mentioned may be changed or developed.
  • BBB
  • aaa
  • Java
  • new
    4 replies
    breeswish
        1
    breeswish  
       Sep 15, 2015
    AAA 可以是 BBB 的基类
    caiyue1993
        2
    caiyue1993  
       Sep 16, 2015
    AAA 可以是接口，而 BBB 是其具体的实现
    yongzhong
        3
    yongzhong  
       Sep 16, 2015
    java 多态
    Ouyangan
        4
    Ouyangan  
       Sep 16, 2015
    AAA -动物 --> BBB-小狗
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