GivenafileGrizzlyBear.java:1.package animals.mammals;2.3.public class GrizzlyBear extends Bear{4.voidhunt(){5.Salmons=findSalmon();6.s.consume();7.}8.}and another file,Salmon.java:1.packageanimals.fish;2.3.public class Salmon extends Fish{4.voidconsume(){/*dostuff*/}5.}Assume both classes are defined in the correct directories for theft packages,and that the Mammal class correctly defines the findSalmon()method.Which two changes allow this code to compile correctly?()
A.add public to the start of line 4 in Salmon.java
B.add public to the start of line 4 in GrizzlyBear.java
C.add import animals.mammals.*;at line 2 in Salmon.java
D.add import animals.fish.*at line 2 in GrizzlyBear.java
E.add import animals.fish.Salmon.*;at line 2 in GrizzlyBear.java
F.add import animals.mammals.GrizzlyBear.*;at line 2 in Salmon.java
第1题:
下列选项中,列出用于定义类成员的访问控制权的一组保留字是______。
A.float,boolean,int,long
B.class,float,double,public
C.char,extends,float,double
D.public,private,protected
第2题:
定义类时需要 class 关键字,继承类时需要 extends 关键字,实现接口时需要 关键字______________ 。
第3题:
用于定义类成员的访问控制权的一组关键字是()
A.class, float, double, public
B.float, boolean, int, long
C.char, extends, float, double
D.public, private, protected
第4题:
下列选项中,列出用于定义类成员的访问控制权的一组保留字是()。
A.class.float.double.public
B.fioat.Boolean.int,long
C.char.extends.float.double
D.public.private.protected
第5题:
下列程序段执行结果是___________。 x = 1 print(type(x)) x = 1.0 print(type(x)) x = '1.0' print(type(x)
A.<class 'int'> <class 'float'> <class 'str'>
B.<class 'float'> <class 'int'> <class 'str'>
C.<class 'str'> <class 'float'> <class 'int'>
D.<class 'str'> <class 'int'> <class 'float'>