惠普Java类笔试题

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1、JAVA部分Lwhicharerun-timeexceptions()a,d,f,g,hA.ArithmeticExceptionB.ClassNotFoundExceptionC.OutOfMemoryErrorD.ClassCastExceptionE.InterruptedExceptionF.IIlegalArgumentExceptionG.IndexOutOfBoundsExceptionbestfriendwhoisaH.NullPointException2.WhichMancla

2、ssproperlyrepresentstherelationshipMManhasaDog”dA.classManextendsDog{}B.classManimplements)}C.classMan{privateBestFrienddog;}D.classMan{privateDogbestFriend;}E.classMan{privateDog;}EclassMan{privateBestFriend;}3Given:b,c,finterfaceJumper)publicvoidjum

3、p();JclassAnimal{}..classDogextendsAnimal{Tailtail;)classBeagleextendsDogimplementsJumper}publicvoidjump(){}}..classCatimplementsJumper(publicvoidjump(){))Whicharetrue()MultiplechoicesA.Catis-aAminalB.Catis-aJumperC.Dogis-aAnimalD.Dogis-aJumperE.Catha

4、s-aAnimalEBeaglehas-aTailH.Beaglehas-aJumper4Given:a，b，c,d，einterfaceA{publicintgetValue();}classBimplementsA{publicintgetValue(){return1;})classCextendsB{15:insertcodeinhere)Whichthreecodefrgments,insertedindividaullyatline15,makeuse(多选)Arpublicvoida

5、dd(Cc){c.getValue();}B:publicvoidadd(Bb){b.getValue();}C:publicvoidadd(Aa){a.getValue();}D:publicvoidadd(Aa,Bb){a.getValue();}E:publicvoidadd(Ccl,Cc2){cl.getValue();}5•丢失6.GivenB[2P]Stringtest="Thisistest";String[]tokens=test.split(”¥s");System.out.pr

6、intln(tokens.length);whtaistheresult()A.OB.lC.4D.CompilationfailsE.Anexceptionisthrownatruntime7.Given:CclassWow{publicstaticvoidgo(shortn){System.out.print(nshort");}publicstaticvoidgo(Shortn){Sysfem.out.print("SHORT'');}publicstaticvoidgo(Longn){Sys

7、tem.out.printC'LONG");}publicstaticvoidmain(String[]args){Shortn=6;intm=7;go(n);go(m);//这一句编译出错}Whichisthresult?()[2P]A.shortLONGB.SHORTLONGWhichthreecodefrgments,insertedindividaullyatline15,makeuse(多选)Arpublicvoidadd(Cc){c.getValue();}B:publicvoidad

8、d(Bb){b.getValue();}C:publicvoidadd(Aa){a.getValue();}D:publicvoidadd(Aa,Bb){a.getValue();}E:publicvoidadd(Ccl,Cc2){cl.getValue();}5•丢失6.GivenB[2P]Stringtest="Thisistest";String[]tokens=test.split(”¥s");System.out.println(tokens.length);whtais