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在下列程序的划线处应填入的语句是( )。 class Person { private int a: } public class Man extends Person{ public int b; public static void main(String arg []){ Person p=newPerson(); Man t=new Man(); int i; _________________ } }
A.i=w;
B.i=b;
C.i=P.a;
D.i=t.b;
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更多 “ 在下列程序的划线处应填入的语句是( )。 class Person { private int a: } public class Man extends Person{ public int b; public static void main(String arg []){ Person p=newPerson(); Man t=new Man(); int i; _________________ } }A.i=w;B.i=b;C.i=P.a;D.i=t.b; ” 相关考题
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Which the two demonstrate an “is a” relationship?()A、 public interface Person {} Public class Employee extends Person {}B、 public interface Shape {} public interface Rectangle extends Shape {}C、 public interface Color {} public class Shape { private Color color; }D、 public class Species {} public class Animal { private Species species; }E、 interface Component {} Class Container implements Component {private Component [] children;
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Which two demonstrate an “is a” relationship?() A、 public interface Person { } public class Employee extends Person { }B、 public interface Shape { } public class Employee extends Shape { }C、 public interface Color { } public class Employee extends Color { }D、 public class Species { } public class Animal (private Species species;)E、 interface Component { } Class Container implements Component ( Private Component[ ]children; )
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多选题Which three demonstrate an “is a” relationship?()Apublic class X { } public class Y extends X { }Bpublic interface Shape { } public interface Rectangle extends Shape{ }Cpublic interface Color { } public class Shape { private Color color; }Dpublic interface Species { } public class Animal { private Species species; }Epublic class Person { } public class Employee { public Employee(Person person) { }Finterface Component { } class Container implements Component { private Component[] children; }
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