• 2022-07-24
    下面关于类的声明,正确的是
    A: public void HH{…}
    B: public void HH(){…}
    C: public class void number{}
    D: public class Car{…}
  • D

    内容

    • 0

      下列哪个类声明是正确的( ) A: public void A1{…} B: public class Move(){…} C: public class void number{…} D: public class Car{…}

    • 1

      下面关于类的声明,正确的是_____ A: public class Student{…} B: public void ST{…} C: public void th(){…} D: public class void num{ }

    • 2

      以下对类A的声明正确的是( )。 A: class A{ int a; public: A next; ... }; B: classs A{ int a; public: void A(); }; C: class A{ int a; A( ); void fun(); } D: class A{ int a; A* next; public: A( ); void fun(); ... };

    • 3

      下列关于Test类的定义代码中,正确的是______。 A: class Test implements Runnable { public void run() {} public void someMethod() {} } B: class Test implements Runnable { public void run(); } C: class Test implements Runnable { public void someMethod(); } D: class Test implements Runnable { public void someMethod() {} }

    • 4

      下列程序运行结果是( ) public class Demo { public static void main(String[] args) { Demo demo = new Demo(); demo.show(new Car() { public void run() { System.out.println("demo run"); } }); } public void show(Car c) { c.run(); } }abstract class Car { public void run() { System.out.println("car run..."); } }