练习08 Java接口练习题.doc

[]?A:publicinterfaceA{inta();}B:{}C:interfaceC{inta;}D:privateinterfaceD{}E:abstractinterfaceE{}F:以上定义均不合法。答:?A:interfaceA{intm=0;}B:{}C:{}D:{}E:,{}F:以上定义都不是。答:?A:finalinterfacePlaying{intn=0;}B:interfacePlaying{privatefinalintMAX=100;}C:{}D:{}E:publicinterfacePlaying();F:以上定义都不是非法的。答::下列哪些定义在接口中的属性是合法的?A:intn=0;B:finalintn=0;C:privateintm=0;D:intm;E:staticintm=0;F:finalstaticint=0;G:abstractint=0;H:A-G定义都不合法。I:A-G定义都合法。答:?A:staticvoidmain();B:finalstaticvoidmain();C:voidmain(){}D:privatevoidmain();E:publicabstractvoidmain();F:以上定义都不是。答:?A:privatevoidadd(inta,intb);B:publicvoidadd(inta,intb);C:publicvoidadd(inta,intb){}D:publicabstractvoidadd(inta,intb);E:staticvoidadd(inta,intb){}F:以上定义都不是非法的。答:?有接口定义:.;interfaceInfo{publicvoidshow();}A:.;..*;classAextendsInfo{}B:.;..*;classAimplementsInfo{}C:.;..*;classAimplementsInfo{}D:.;..*;classAimplementsInfo{voidshow(){}