Java習題一、單選題（40題 DB2數(shù)據(jù)庫中和LotusIBM D. 下面那種技術(shù)可以與基于瀏覽器的WEB應(yīng)用共同協(xié)作，使得某些錯誤能夠直接在終端用戶的客戶端處理而無需在WEB服務(wù)器端處理？A. B. C. 一種技術(shù)是基于SGML的，并能滿足客戶的這一需求？ B. C. D.下面那種語言是解釋執(zhí)行的（ A. B. C. D.下面那個不是HTML中表格使用的用VBScript可以使html，VBScript B.Netscape C. D. shortA．-27——27-B．0——–5——215-．–1——231-longlongnumber=longnumber=longnumber=longnumber=floatf=doubled=doubled=doubled=下列哪些不是Java的關(guān)鍵字？下列那個是char-27~27-0~216-javaC．型的解釋語D．編譯型的語if(x>0){System.out.println("first");elseif(x>-3){System.out.println("second");}else{System.out.println("third");}當x在什么范圍內(nèi)，會輸出：second？x>x>-x<=-x<=0&&x>-while(int{System.out.println("iis}int{System.out.println(" is}intfor(intk=0;j+kj++,k++){System.out.println("jis"+j+"kis"+k);}intj=0;System.out.println("jis"+j++);if(j==3){continueloop;}}whileintSystem.out.println("valueis"+((x>4)?99.9A.輸出結(jié)果為B.輸出結(jié)果為9C.輸出結(jié)果為D.java“對象”是現(xiàn)實世界的實體或概念在計算機邏輯中的抽象表 A、EDI商 B、Internet商 C、Intranet商 D、WWW商 電子商務(wù)有許多分類，其中 toC是指 A、企業(yè)與企 B、企業(yè)與消費 C、消費者與消費 在一個由客戶端，協(xié)議、中間層（DMZ、域及企業(yè)內(nèi)部網(wǎng)構(gòu)成的電子商務(wù)系統(tǒng)中，一般情況下，協(xié)議會允許哪個/些協(xié)議通過？ HTMLJSP<@表達式內(nèi)容該框架中的數(shù)據(jù)庫只支持為AB類的一個無形式參數(shù)無返回值的方法method書寫方法頭，使得使用staticvoidmethod(publicvoidmethod(finalvoidmethod(voidmethod( 收集能夠在期望的時間釋放被javaclasspublicMyClass(int}}MyClassmyobj=newMyClassmyobj=newMyClass(Myclassmyobj=newMyClassmyobj=newvoidmyFun(intX=1){voidmyFun(int&X){voidmyFun(intX){voidmyFun(int*X){設(shè)Derived類為BaseBaseObj=newDerivedObj=newBaseObj=newDerivedObj=newpublicclassXextendsThreadimplementsRunnable{publicvoidrun(){System.out.println("thisis}publicstaticvoidmain(String{}}ABCDclassParentprivateStringpublic4publicclassChildextendsParentprivateStringpublicChild()publicStringgetValue(){returnpublicstaticvoidmain(StringParentp=new 12linelinelinelinelinepublicclassstaticintarr[]=newint[10];publicstaticvoidmain(Stringa[]){}}AC輸出零；D輸出空。MAX_LENGTHintpublic成員變量100，用簡短語句定義ApublicintBfinalintCfinalpublicintDpublicfinalint類Teacher和Student是類的子類p;Student//p,tandsareallnon-if(tinstanceof){s=(Student)t;最后一句語句的結(jié)果是A將構(gòu)造一個StudentBC表達式是錯誤的；DABCDABCDABCD欲構(gòu)造ArrayList類的一個實例，此類繼承了List接口，下列哪個方法是正確的？ArrayListmyList=newObject（；ListmyList=newArrayList（；ArrayListmyList=newList（；ListmyList=newList（；二 多選題（40題Strings="你好";inti=3;Strings="你好";inti=3if(i==s){Strings="你好";inti=3;Strings="你好";inti=3;Strings=null;int 哪個布局管理器使用的是組件的最佳尺寸（preferredsize） publicclassXimplementsRunable{publicvoid }publicclassXimplementsThread{publicvoid }publicclassXimplementsThread{publicint }publicclassXimplementsRunable{protectedvoid }publicclassXextendsThread{publicvoid }ABCDEF構(gòu)造BufferedInputStreamBufferedInputStream CDEjava.lang.Clonable是類java.lang.Runnable是接口Doublea=1.0是正確的java語句AdoubleBDoublea=newCbytea=DBytea= 定義一個類名為"MyClass.java"的類，并且該類可被一個工程中的所有類，那么該privateclassMyClassextendsclassMyClassextendspublicclasspublicclassMyClassextendspublicvoidadd(inta){}publicintadd(intpublicvoidadd(longpublicvoidadd(inta,intpublicvoidadd(floatpublicvoidexample(){try{unsa

}catch(SafeException{System.out.println("Test}finally{System.out.println("TestSystem.out.println("Test} Test Test Test TestJAVAAB DE int[]a[]=newpublicclasspublicstaticvoidmain(Stringargs[]){Outer:for(inti=0;i<3;j=0;j<3;j++){if(j>1)}}}A0andB0andC0andD0andE2andF2andG2andStringa[]=newString[5];for(intStringStringString[]a=newString[5];for(intA.importclassMyclass{}importjava.awt.*;classC./*Thisisacomment*/packageMyPackage;importjava.awt.*;classJAVA goto publicclassargv[]){inti;intinner:for(j=1;j<3;j++){ifcontinueSystem.out.println("Valuefori="+i+"Valueforj="}}}Valuefori=1valueforValuefori=2valueforValuefori=2valueforValuefori=3valueforclasspublicvoidamethod(inti){}publicclassScopeextendspublicstaticvoidmain(String//MethodHere(選擇項插入位}voidamethod(inti)throwsExceptionvoidamethod(longi)throwsExceptionvoidamethod(longpublicvoidamethod(inti)throwsExceptionpublicclassMyClass1publicstaticvoidmain(Stringargv[]){/*修飾符位置XX*/classMyInner}ABCDpublicstaticvoidmain(Stringargs[]){Floatf=newFloat(4.2f);Floatfloatfl=4.2f;}ABCD EFG重載類haiEFG重載類hai publicvoidhai(intBhai(inta,int publichai(intDinthai(intc,intint inthai(String覆蓋（重寫）方法voidhai(inta,intbpublicvoidhai(inta,intprotectedvoidhai(inta,intpublichai(intinthai(intc,intintinthai(Stringpublicstaticvoidmain(Stringargs[]){try{}catch}} ABCDEF從ready到從running到從running到從waiting到從waiting到從ready到switch(s)default:System.out.println("Best} Acharc='\'Bcharc=Ccharc=Dcharc=Echarc=如果定義Strings=”example inti= s+=3; s=s+"abcd";當一個高優(yōu)先級線程準備好（runnable狀態(tài)stop方法被調(diào) inti[][]=new inti[10][10]=newinti[][]=newint[]i[]=newint[][]i=new下面那些是正確的為50AcharBStringCStringDStringEObjectpublicclass //此處允許添加的classimportpackagepublicstaticfinalint/*thisisatestprogram語句Strings=null;下面選項那些不會拋出NullPointerException異常s!=null&&s!=null&s==null||s==null| 101000000000000000000000000000004的結(jié)果0000101000000000000000000000101000000000000000000000000000004的結(jié)果1111101000000000000000000000101000000000000000000000000000004的結(jié)果0000101000000000000000000000101000000000000000000000000000004的結(jié)果1111101000000000000000000000下面哪些不是java下面有關(guān)java三 程序解析題（10題javaExamplecatdogsheepCclasspublicstaticvoidmain(Stringargs[]){Stringa=args[1];Stringb=args[2];Stringc}} 一個異常發(fā)publicstaticvoidmain(Stringargs[]){Strings;System.out.println("s=} 輸出s= publicclassQ1implementsRunnable{publicvoidrun(StringThread:"+s);}publicstaticvoidmain(String[]args){Q1a=newQ1();Threadt=newThread(a);}}輸出"BeforestartofThreadpackagepublicclassTest{//doclasspackagetestpackage;publicclassTest{//doimportclass{//dopublicclassTest{//doimportjava.awt.*;publicclassTest{//doclassParentprivateStringpublic}publicclassChildextendsParentprivateStringpublicChild()publicStringgetValue(){returnname;publicstaticvoidmain(Stringarg[])Parentp=new}}A第3B第6C第7D第8publicclassStringwebSite="h publicStringgetSite(){return}}編譯器會報錯誤：':'expectedforthestatementinline缺少main方法getSite()方法中的returnwebSite有問intm,publicTest()publicTest(inta){m=a;publicstaticvoidmain(Stringarg[])Testintj=0;t1=newt2=new}}BlineClineDline publicvoidprintValue(inti,intj){//...publicvoidprintValue(inti){//...}publicclassTeacher publicvoidprintValue(){//...publicvoidprintValue(inti)publicstaticvoidmain(Stringt=new}BlineClineDline給定下面的JavaStringBuffersb=newStrings=newsb.insert(1,編譯器在line1編譯器在line2編譯器在line3編譯器在line4編譯器在line5編譯器在line6編譯器在line7intm,publicTest()publicTest(inta){m=a;publicstaticvoidmain(Stringarg[])Testintj=0;t1=newt2=new}}linelinelineline四 程序填空題（10題classpublicstaticvoidmain(Stringargs[]){inti=0,j=5;st:for(;;j--break}}}}答案：i=0j=-j值classpublicstaticvoidmain(Stringargs[]){intx=4,j=0;casecase2:j++;case3:j++;case4:j++;case5:j++;}}}下面代碼運行后得到baz值classpublicstaticvoidmain(Stringargs[]){Stringbar=newString("blue");Stringbaz=newString("green");Stringvar=newString("red");Stringc=baz;}}publicclassTest1publicstaticvoidmain(String[]{for(inti=-2;i<2;i++){if(i==0)continue;}}}i=-publicclassTestvoidprintValue(intdo{}while(--m>10}publicstaticvoidmain(String{intTestt=newTest();}}答案publicclasspublicstaticvoidargs[]){Strings1=”HenryStringsaaAlt;String”Jv;Stringst; ;}}答案JavaimportpublicclassSortArray