给定接口的定义如下: interface A{ int method1(int i); int method2(int j); } 以下哪些类实现了A 接口,同时又不是抽象类。
A.
class B implements A{ int method1(){...} int method2(){...} }
B.
class B { int method1(int i){...} int method2(int j){...} }
C.
class B implements A{ int method1(int i){...} int method2(int j){...} }
D.
class B extends A{ int method1(int i){...} int method2(int j){...} }
E.
class B implements A{ int method2(int j){...} int method1(int i){...} }