A.BigDog(){super();this();}
B.BigDog(){Stringname="Fido";super();}
C.BigDog(){super();Stringname="Fido";}
D.privateBigDog(){super();}
第1题:
A.0
B.1
C.2
D.3
E.4
第2题:
A.0
B.1
C.2
D.3
E.4
第3题:
现有:classHorseRadish{//insertcodehereprotectedHorseRadish(intx){System.out.println("bokchoy");}}classWasabiextendsHorseRadish{publicstaticvoidmain(String[]args){Wasabiw-newWasabi();}}分别插入到第2行,哪两项允许代码编译并产生”bokchoy”输出结果()
A.protectedHorseRadish(){this(42);}
B.protectedHorseRadish(){}
C.//justacomment
D.protectedHorseRadish(){newHorseRadish(42);}
第4题:
现有:1.classHorseRadish{2.//insertcodehere3.protectedHorseRadish(intx){4.System.out.println("bokchoy");5.}6.}7.classWasabiextendsHorseRadish{8.publicstaticvoidmain(String[]args){9.Wasabiw=newWasabi();10.}11.}分别插入到第2行,哪两项允许代码编译并产生"bokchoy"输出结果?()
A.//justacomment
B.protectedHorseRadish(){}
C.protectedHorseRadish(){this(42);}
D.protectedHorseRadish(){newHorseRadish(42);}
第5题:
现有:1.abstractclassColor2{2.//insertcodehere3.}4.5.publicclassBlue2extendsColor2{6.publicStringgetRGB(){return"blue";}7.}和4个声明:publicabstractStringgetRGB();abstractStringgetRGB();privateabstractStringgetRGB();protectedabstractStringgetRGB();分别插入到第2行,有多少行可以编译?()
A.0
B.1
C.2
D.3