java工程师考试.doc

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1、.第一题：(过程可以写在后面)学校的毕业话剧演出由四个小美女来出演小红帽、美羊羊、女巫和公主的角色。没人在排练时的角色与演出时的角色不同。排练时出演小红帽的人会撒谎，通过如下消息，请判断四人在演出和排练时分别出演什么角色。梅：“排练时，兰的角色是演出时竹的角色。”兰：“菊排练时扮演的是美羊羊。”竹：“演出时我演公主。”菊：“兰演出时扮演的是美羊羊。”第二题：解数独题(数独是九宫格(即3格宽x3格高))正方形状，每一格又细分为一个九宫格，在没一个小九宫格中，分别填上1~9个数字，让每一个大九宫格没一列，没一行的数字都不重复。

2、8174694833852756966511831、Whichlinecontainsaconstructorinthisclassdefinition?精选word范本！.publicclassCounter{//(1)intcurrent,step;publicCounter(intstartVaue,intstepValue){//(2)set(startValue);setStepValue(steValue);}publicintget(){returncurrent;}//(3)publicvoidset(in

3、tvalue){current==value;}//(4)publicvoidsetStepValue(intstepValue){step==stepValue;}//(5)}1)Codemarkedwith(1)isaconstructor2)Codemarkedwith(2)isaconstructor3)Codemarkedwith(3)isaconstructor4)Codemarkedwith(4)isaconstructor5)Codemarkedwith(5)isaconstructor2、Aninstan

4、cemember...1)isalsocalledastaticmember2)isalwaysavariable3)isneveramethod4)belongstoasingleinstance,nottotheclassasawhole5)alwaysrepresentsanoperation3、Giventhefollowingclass,whichstatementscanbeinsertedatpositionIwithoutcausingthecodetofailcompilation?publicclass

5、Q6db8{inta;intb=0;staticintc;publicvoidm(){精选word范本！.intd;inte=0;//Position1}}1)a++2)b++3)c++4)d++5)e++7、Whatiswrongwiththefollowingcode?ClassMyExceptionextendsException{}Publicclassqb4ab{Publicvoidfoo(){Try{Bar();}finally{Baz();}catch(MyExceptione){}Publicvoidbar

6、()throwsMyException{ThrownewException();}Publicvoidbaz()throwsRuntimeException{ThrownewRuntimeException();}}4、)Sincethemethodfoo()doesnotcatchtheexceptiongeneratedbythemethodbaz(),itmustdeclaretheRuntimeExceptioninitsthrowsclause.精选word范本！.4、)Athetryblockcannotbef

7、ollowedbybothacatchandafinallyblock.5、)Anemptycatchblockisnotallowed.6、)Acatchblockcannotfollowafinallyblock.7、)Afinallyblockmustalwaysfollowoneormorecatchblocks.5、WhatwillhappenwhenyouattempttocompileandrunthefollowingprogrambypassingtheTestclasstotheJavainterpre

8、ter?ClassTest{Publicstaticvoidmain{System.out.print(“hello”);}}Selecttheonerightanswer.6.theprogramdoesnotcompilebecausemain()isnotdefinedcorrectly.7.Th