已知类的继承关系如下:class Employee;class Manage...yee;则以下语句能通过编译的有哪些?
Employee e=new Manager();
举一反三
- 已知类的继承关系如下: class Employee; class Manager extends Employee; class Director extends Employee; 则以下语句能通过编译的有哪些?
- 已知类的继承关系 class Employee; class Manager extends Employee; class Director extands Employee; class Director extands Employee; 下语句能通过编译的有哪些?
- 已知类的继承关系如下: class A class B extends A class C extends A 则以下语句能通过编译的是( )。
- 已知:class Employee;class Manager extends Employee;class Director extends Employee;则以下语句能通过编译的有哪些? A: Employee e = new Manager(); B: Director d = new Manager(); C: Director d = new Employee(); D: Manager m = new Director()
- 已知类的继承关系如下:classEmployee;classManage...yee;则以下语句能通过编译的有哪些?
内容
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已知类的继承关系如下: classEmployee; classManagerextendsEmployeer; classDirectorextendsEmployee; 则以下语句能通过编译的有哪些?
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class A class B extends A class C extends A 则以下语句能通过编译的是( )
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以下能表示C类继承A类和B类的正确语句是( )。知识点:多继承 A: class C:A,B B: class C:A B C: class C(A,B) D: def class C(A,B)
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已知类的继承关系如下: classEmployee; classManagerextendsEmployee; classDirectorextendsEmployee; 下语句能通过编译的有哪些? A: Employeee=newManager(); B: Directord=newManager(); C: Directord=newEmployee(); D: Managerm=newDirector();
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已知类的继承关系如下: classEmployee; classManagerextendsEmployeer; classDirectorextendsEmployee; 下语句能通过编译的有哪些? A: Employeee=newManager(); B: Directord=newManager(); C: Directord=newEmployee(); D: Managerm=newDirector();