对于下列Hello类,哪个叙述是正确的? class Hello{ Hello(int m){ } int Hello() { return 20; } hello() {} }A.Hello类有2个构造方法B.Hello类的int Hello()方法是错误的方法C.Hello类没有构造方法D.Hello无法通过编译,因为其中的hello方法的方法头是错误的(没有返回类型)。
对于下列Hello类,哪个叙述是正确的? class Hello{ Hello(int m){ } int Hello() { return 20; } hello() {} }
A.Hello类有2个构造方法
B.Hello类的int Hello()方法是错误的方法
C.Hello类没有构造方法
D.Hello无法通过编译,因为其中的hello方法的方法头是错误的(没有返回类型)。
参考答案和解析
Hello无法通过编译,因为其中的hello方法的方法头是错误的(没有类型)。
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