JAVA基础面试题.doc

1?,?interface Aint x = 0;class Bint x =1;class Cextends B implements A public void pX()System.out.println(x);public static void main(String args) new C().pX();public static final, xA.x super.x2JSPforwardredirect?1forward, url, , 2redirect, , url, , 3JSPINCLUDEINCLUDE1 jsp2 jsp, url(jsp,servlet.), (html)45A. B. C. D. A D6struts.xmlstruts-defaultstrutsjson-defalutstruts-default-pluginActionresultjsonjson-defalutjson-defaultstruts-defalut7 javajava javaclass 8abccbaString str = abc;String resStr = new StringBuilder(Str).reverse().toString();System.out.println(abc+resStr);9finalfinal10=equals()equalsString a = new String(some);String b = new String(some);if(a.equals(b)11javajavajava(JVM)1) javajavajavaJVM2) 12static13Integerintjava intintegerjavaintint0integernullintintegernull Exception14Math.ceil,Math.floorMath.round?ceilMath.ceil(11.3)= 12;Math.ceil(-11.3)=-11;floorMath.floor(11.3)=11;Math.floor(-11.2)=-12;round0.5Math.round(11.3)=Math.round(11.3+0.5)=12;15overrideoverloadoverloadoverrideprivate16has ais ais ahas ais ais ais-ahas-aCPUCPU17jdkfinalfinaljdkSystem,String,StringBufferpublic static final String x = something;String,.,.mainstatic.String.mainString18javapublic class BubbleSort /Here we must declare existance of the thrid variablestatic int array;public static void main(String args)array = new int1,5,2,3,4,6,8,7,9,10;output();System.out.println(n);for(int i = array.length - 1;i1;i-)for(int j = 0;ji;j+)if(arrayjarrayi) int temp = arrayj;arrayj = arrayi;arrayi = temp;output();/Shows the results of the output arraypublic static void output()for(int i = 0;iarray.length;i+) System.out.print(arrayi+ );19CSS:diaplay:nonevisibility:hiddenoverflow:hiddenjspdivvisibilityoverflowwidthheight20getpostgetpostjspgetpost1getposttomcatserver.xml2getpostgetpost21StringStringBufferStringStringBufferStringStringBufferStringBufferStringBuffer buffer = new StringBuffer();buffer.append(daphne);StringBufferString22jquery/jquery/1id2class3tabName23UnionUnion all UnionUnion all unionunion allunion allunionunion allunion24JSP,:_blank_self,_top25includeincludeincludejspincludeincludeinclude26ConstructoroverrideCo