现有:1.interfaceAnimal{2.voideat();3.}4.5.//insertcodehere6.7.publicclassHouseCatimplementsFeline{8.publicvoideat(){}9.}和以下三个接口声明:interfaceFelineextendsAnimal{}interfaceFelineextendsAnimal{voideat();}interfaceFelineextendsAnimal{voideat(){}}分别插入到第5行,有多少行可以编译?()A.0B.1C.2D.3
现有:1.interfaceAnimal{2.voideat();3.}4.5.//insertcodehere6.7.publicclassHouseCatimplementsFeline{8.publicvoideat(){}9.}和以下三个接口声明:interfaceFelineextendsAnimal{}interfaceFelineextendsAnimal{voideat();}interfaceFelineextendsAnimal{voideat(){}}分别插入到第5行,有多少行可以编译?()
A.0
B.1
C.2
D.3
相关考题:
现有:1.interfaceAnimal{2.voideat();3.}4.5.//insertcodehere6.7.publicclassHouseCatextendsFeline{8.publicvoideat(){}9.}和五个声明:abstractclassFelineimplementsAnimal{}abstractclassFelineimplementsAnimal{voideat();}abstractclassFelineimplementsAnimal{publicvoideat();}abstractclassFelineimplementsAnimal{publicvoideat(){}}abstractclassFelineimplementsAnimal{abstractpublicvoideat();}分别插入到第5行,有几个可以通过编译?()A.0B.1C.2D.3
1.interfaceAnimal{2.voideat();3.}4.5.//insertcodehere6.7.publicclassHouseCatimplementsFeline{8.publicvoideat(){}9.}和以下三个接口声明:interfaceFelineextendsAnimal{}interfaceFelineextendsAnimal{voideat();}interfaceFelineextendsAnimal{voideat(){}}分别插入到第5行,有多少行可以编译?()A.0B.1C.2D.3
现有:1.interfaceAnimalf2.voideat();3.}4.5.//insertcodehere6.7.publicclassHouseCatimplementsFeline{8.publicvoideat(){}9.}和以下三个接口声明:interfaceFelineextendsAnimal()interfaceFelineextendsAnimal{voideat();}interfaceFelineextendsAnimal{voideat(){}}分别插入到第5行,有多少行可以编译?
8、3. 薪酬并不是实现有效激励的最有效手段。