java程序员面试题

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1、java程序员面试题第一部分:选择题　　QUESTIONNO:1　　1、publicclassTest{　　publicstaticvoidchangeStr(Stringstr){　　str="welcome";九塾教育http://rooms9.com　　}　　publicstaticvoidmain(String[]args){　　Stringstr="1234";　　changeStr(str);　　System.out.println(str);　　}　　}　　Pleasewritetheoutp

2、utresult:　　QUESTIONNO:2　　1.publicclassTest{　　2.staticbooleanfoo(charc){　　3.System.out.print(c);九塾教育http://rooms9.com　　4.returntrue;　　5.}　　6.publicstaticvoidmain(String[]argv){　　7.inti=0;　　8.for(foo('A');foo('B')&&(i<2);foo('C')){　　9.i++;beconsistentwithint

3、hesamedisk.Alternateunifiedcorerequirementsplacedontheterminalstripterminals,onlineidentityandensurethecoppercoreisnotexposed.6.4.6enclosurewithinthesametothecablecoreprovidesbindingintoacircle,harnesstiespacingisgenerally100mm;branchofficesshallbebindingo

4、nbothends,eachcore　　10.foo('D');　　12.}　　13.}九塾教育http://rooms9.com　　14.}　　Whatistheresult?　　A.ABDCBDCB　　B.ABCDABCD　　C.Compilationfails.　　D.Anexceptionisthrownatruntime.QUESTIONNO:3　　1.classA{　　2.protectedintmethod1(inta,intb){return0;}　　3.}　　Whichtwoarevali

5、dinaclassthatextendsclassA?(Choosetwo)　　A.publicintmethod1(inta,intb){return0;}　　B.privateintmethod1(inta,intb){return0;}　　C.privateintmethod1(inta,longb){return0;}　　D.publicshortmethod1(inta,intb){return0;}　　E.staticprotectedintmethod1(inta,intb){return0;

6、}　　QUESTIONNO:4　　1.publicclassOuter{　　2.publicvoidsomeOuterMethod(){　　3.//Line3　　4.}beconsistentwithinthesamedisk.Alternateunifiedcorerequirementsplacedontheterminalstripterminals,onlineidentityandensurethecoppercoreisnotexposed.6.4.6enclosurewithinthesame

7、tothecablecoreprovidesbindingintoacircle,harnesstiespacingisgenerally100mm;branchofficesshallbebindingonbothends,eachcore　　5.publicclassInner{}　　6.publicstaticvoidmain(String[]argv){　　7.Outero=newOuter();　　8.//Line8　　9.}九塾教育http://rooms9.com　　10.}　　Whichin

8、stantiatesaninstanceofInner?　　A.newInner();//Atline3　　B.newInner();//Atline8　　C.newo.Inner();//Atline8　　D.newOuter.Inner();//Atline8//newOuter().newInner()　　QUESTIONNO:5　　Whichmethodisusedbyaservlettoplaceits