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Java鍩虹閮ㄥ垎......................................................................................................21銆佷竴涓�".java"婧愭枃浠朵腑鏄惁鍙互鍖呮嫭澶氫釜绫伙紙涓嶆槸鍐呴儴绫伙級锛熸湁浠�涔堥檺鍒讹紵.....22銆丣ava鏈夋病鏈塯oto?..........................................................................................23銆佽璇�&鍜�&&鐨勫尯鍒��......................................................................................24銆佸湪JAVA涓浣曡烦鍑哄綋鍓嶇殑澶氶噸宓屽寰幆锛�...................................................25銆乻witch璇彞鑳藉惁浣滅敤鍦╞yte涓婏紝鑳藉惁浣滅敤鍦╨ong涓婏紝鑳藉惁浣滅敤鍦⊿tring涓�?...26銆乻hort s1 =1; s1 = s1 + 1;鏈変粈涔堥敊? short s1 = 1; s1 += 1;鏈変粈涔堥敊?..................27銆乧har鍨嬪彉閲忎腑鑳戒笉鑳藉瓨璐竴涓腑鏂囨眽瀛�?涓轰粈涔�?............................................28銆佺敤鏈�鏈夋晥鐜囩殑鏂规硶绠楀嚭2涔樹互8绛夋柤鍑�?29銆佽璁捐涓�涓竴鐧句嚎鐨勮绠楀櫒..........................................................................210銆佷娇鐢╢inal鍏抽敭瀛椾慨楗颁竴涓彉閲忔椂锛屾槸寮曠敤涓嶈兘鍙橈紝杩樻槸寮曠敤鐨勫璞′笉鑳藉彉锛�211銆�"=="鍜宔quals鏂规硶绌剁珶鏈変粈涔堝尯鍒紵...........................................................212銆侀潤鎬佸彉閲忓拰瀹炰緥鍙橀噺鐨勫尯鍒紵.....................................................................213銆佹槸鍚﹀彲浠ヤ粠涓�涓猻tatic鏂规硶鍐呴儴鍙戝嚭瀵归潪static鏂规硶鐨勮皟鐢紵........................214銆両nteger涓巌nt鐨勫尯鍒�.....................................................................................215銆丮ath.round(11.5)绛夋柤澶氬皯?Math.round(-11.5)绛夋柤澶氬皯?...............................216銆佷笅闈㈢殑浠ｇ爜鏈変粈涔堜笉濡ヤ箣澶�?.......................................................................217銆佽璇村嚭浣滅敤鍩焢ublic锛宲rivate锛宲rotected锛屼互鍙婁笉鍐欐椂鐨勫尯鍒�.......................218銆丱verload鍜孫verride鐨勫尯鍒�侽verloaded鐨勬柟娉曟槸鍚﹀彲浠ユ敼鍙樿繑鍥炲�肩殑绫诲瀷?219銆佹瀯閫犲櫒Constructor鏄惁鍙override?..........................................................220銆佹帴鍙ｆ槸鍚﹀彲缁ф壙鎺ュ彛?鎶借薄绫绘槸鍚﹀彲瀹炵幇(implements)鎺ュ彛?鎶借薄绫绘槸鍚﹀彲缁ф壙鍏蜂綋绫�(concreteclass)?鎶借薄绫讳腑鏄惁鍙互鏈夐潤鎬佺殑main鏂规硶锛�.......................................................................221銆佸啓clone()鏂规硶鏃讹紝閫氬父閮芥湁涓�琛屼唬鐮侊紝鏄粈涔堬紵.........................................222銆侀潰鍚戝璞＄殑鐗瑰緛鏈夊摢浜涙柟闈�.........................................................................223銆乯ava涓疄鐜板鎬佺殑鏈哄埗鏄粈涔堬紵..................................................................224銆乤bstractclass鍜宨nterface鏈変粈涔堝尯鍒�?...........................................................225銆乤bstract鐨刴ethod鏄惁鍙悓鏃舵槸static,鏄惁鍙悓鏃舵槸native锛屾槸鍚﹀彲鍚屾椂鏄痵ynchronized?226銆佷粈涔堟槸鍐呴儴绫伙紵StaticNested Class 鍜� Inner Class鐨勪笉鍚屻��..........................227銆佸唴閮ㄧ被鍙互寮曠敤瀹冪殑鍖呭惈绫荤殑鎴愬憳鍚楋紵鏈夋病鏈変粈涔堥檺鍒讹紵...........................228銆丄nonymousInner Class (鍖垮悕鍐呴儴绫�)鏄惁鍙互extends(缁ф壙)鍏跺畠绫伙紝鏄惁鍙互implements(瀹炵幇)interface(鎺ュ彛)?...................................................................................................................229銆乻uper.getClass()鏂规硶璋冪敤.....................................................................230銆丼tring鏄渶鍩烘湰鐨勬暟鎹被鍨嬪悧?.....................................................................231銆丼tring s = "Hello";s = s + " world!";杩欎袱琛屼唬鐮佹墽琛屽悗锛屽師濮嬬殑String瀵硅薄涓殑鍐呭鍒板簳鍙樹簡娌℃湁锛熉� 聽 232銆佹槸鍚﹀彲浠ョ户鎵縎tring绫�?..............................................................................233銆丼tring s =new String("xyz");鍒涘缓浜嗗嚑涓猄tring Object?浜岃�呬箣闂存湁浠�涔堝尯鍒紵 234銆丼tring鍜孲tringBuffer鐨勫尯鍒�.......................................................................235銆佸浣曟妸涓�娈甸�楀彿鍒嗗壊鐨勫瓧绗︿覆杞崲鎴愪竴涓暟缁�?...........................................236銆佹暟缁勬湁娌℃湁length()杩欎釜鏂规硶?String鏈夋病鏈塴ength()杩欎釜鏂规硶锛�...................237銆佷笅闈㈣繖鏉¤鍙ヤ竴鍏卞垱寤轰簡澶氬皯涓璞★細Strings="a"+"b"+"c"+"d";.................238銆乼ry {}閲屾湁涓�涓猺eturn璇彞锛岄偅涔堢揣璺熷湪杩欎釜try鍚庣殑finally{}閲岀殑code浼氫笉浼氳鎵ц锛屼粈涔堟椂鍊欒鎵ц锛屽湪return鍓嶈繕鏄悗?.................................................................................................239銆佷笅闈㈢殑绋嬪簭浠ｇ爜杈撳嚭鐨勭粨鏋滄槸澶氬皯锛�...........................................................240銆乫inal,finally, 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鏈変粈涔堝尯鍒�?.....................................................................248銆佸悓姝ュ拰寮傛鏈変綍寮傚悓锛屽湪浠�涔堟儏鍐典笅鍒嗗埆浣跨敤浠栦滑锛熶妇渚嬭鏄庛��.................249.涓嬮潰涓や釜鏂规硶鍚屾鍚楋紵锛堣嚜宸卞彂鏄庯級...........................................................250銆佸绾跨▼鏈夊嚑绉嶅疄鐜版柟娉�?鍚屾鏈夊嚑绉嶅疄鐜版柟娉�?.............................................251銆佸惎鍔ㄤ竴涓嚎绋嬫槸鐢╮un()杩樻槸start()?............................................................252銆佸綋涓�涓嚎绋嬭繘鍏ヤ竴涓璞＄殑涓�涓猻ynchronized鏂规硶鍚庯紝鍏跺畠绾跨▼鏄惁鍙繘鍏ユ瀵硅薄鐨勫叾瀹冩柟娉�?聽 253銆佺嚎绋嬬殑鍩烘湰姒傚康銆佺嚎绋嬬殑鍩烘湰鐘舵�佷互鍙婄姸鎬佷箣闂寸殑鍏崇郴...............................254銆佺畝杩皊ynchronized鍜宩ava.util.concurrent.locks.Lock鐨勫紓鍚岋紵.......................255銆佽璁�4涓嚎绋嬶紝鍏朵腑涓や釜绾跨▼姣忔瀵筳澧炲姞1锛屽彟澶栦袱涓嚎绋嬪j姣忔鍑忓皯1銆傚啓鍑虹▼搴忋�偮� 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f4銆佸湪JAVA涓浣曡烦鍑哄綋鍓嶇殑澶氶噸宓屽寰幆锛熷湪Java涓紝瑕佹兂璺冲嚭澶氶噸寰幆锛屽彲浠ュ湪澶栭潰鐨勫惊鐜鍙ュ墠瀹氫箟涓�涓爣鍙凤紝鐒跺悗鍦ㄩ噷灞傚惊鐜綋鐨勪唬鐮佷腑浣跨敤甯︽湁鏍囧彿鐨刡reak璇彞锛屽嵆鍙烦鍑哄灞傚惊鐜�備緥濡傦紝ok:for(int i=0;i<10;i++)聽聽 {聽聽聽聽 for(int j=0;j<10;j++)聽聽聽聽聽聽 {聽聽聽聽聽聽聽 System.out.println(鈥渋=鈥� + i + 鈥�,j=鈥� + j);聽聽聽聽聽聽聽 if(j == 5) break ok;聽聽聽聽 }}鍙﹀锛屾垜涓汉閫氬父骞朵笉浣跨敤鏍囧彿杩欑鏂瑰紡锛岃�屾槸璁╁灞傜殑寰幆鏉′欢琛ㄨ揪寮忕殑缁撴灉鍙互鍙楀埌閲屽眰寰幆浣撲唬鐮佺殑鎺у埗锛屼緥濡傦紝瑕佸湪浜岀淮鏁扮粍涓煡鎵惧埌鏌愪釜鏁板瓧銆俰nt arr[][] ={{1,2,3},{4,5,6,7},{9}};boolean found = false;for(int i=0;i78锛�"def" ---> 62锛�"xyz" ---> 65鍦╤ashSet涓殑瀛樺偍椤哄簭涓嶆槸62,65,78銆侺inkedHashSet鎸夋彃鍏ョ殑椤哄簭瀛樺偍锛岄偅琚瓨鍌ㄥ璞＄殑hashcode鏂规硶杩樻湁浠�涔堜綔鐢ㄥ憿锛熷鍛樻兂鎯�!hashset闆嗗悎姣旇緝涓や釜瀵硅薄鏄惁鐩哥瓑锛岄鍏堢湅hashcode鏂规硶鏄惁鐩哥瓑锛岀劧鍚庣湅equals鏂规硶鏄惁鐩哥瓑銆俷ew涓や釜Student鎻掑叆鍒癏ashSet涓紝鐪婬ashSet鐨剆ize锛屽疄鐜癶ashcode鍜宔quals鏂规硶鍚庡啀鐪媠ize銆� 鍚屼竴涓璞″彲浠ュ湪Vector涓姞鍏ュ娆°�傚線闆嗗悎閲岄潰鍔犲厓绱狅紝鐩稿綋浜庨泦鍚堥噷鐢ㄤ竴鏍圭怀瀛愯繛鎺ュ埌浜嗙洰鏍囧璞°�傚線HashSet涓嵈鍔犱笉浜嗗娆＄殑銆� 64銆佽鍑篈rrayList,Vector, LinkedList鐨勫瓨鍌ㄦ�ц兘鍜岀壒鎬rrayList鍜孷ector閮芥槸浣跨敤鏁扮粍鏂瑰紡瀛樺偍鏁版嵁锛屾鏁扮粍鍏冪礌鏁板ぇ浜庡疄闄呭瓨鍌ㄧ殑鏁版嵁浠ヤ究澧炲姞鍜屾彃鍏ュ厓绱狅紝瀹冧滑閮藉厑璁哥洿鎺ユ寜搴忓彿绱㈠紩鍏冪礌锛屼絾鏄彃鍏ュ厓绱犺娑夊強鏁扮粍鍏冪礌绉诲姩绛夊唴瀛樻搷浣滐紝鎵�浠ョ储寮曟暟鎹揩鑰屾彃鍏ユ暟鎹參锛孷ector鐢变簬浣跨敤浜唖ynchronized鏂规硶锛堢嚎绋嬪畨鍏級锛岄�氬父鎬ц兘涓婅緝ArrayList宸紝鑰孡inkedList浣跨敤鍙屽悜閾捐〃瀹炵幇瀛樺偍锛屾寜搴忓彿绱㈠紩鏁版嵁闇�瑕佽繘琛屽墠鍚戞垨鍚庡悜閬嶅巻锛屼絾鏄彃鍏ユ暟鎹椂鍙渶瑕佽褰曟湰椤圭殑鍓嶅悗椤瑰嵆鍙紝鎵�浠ユ彃鍏ラ�熷害杈冨揩銆� LinkedList涔熸槸绾跨▼涓嶅畨鍏ㄧ殑锛孡inkedList鎻愪緵浜嗕竴浜涙柟娉曪紝浣垮緱LinkedList鍙互琚綋浣滃爢鏍堝拰闃熷垪鏉ヤ娇鐢ㄣ��65銆佸幓鎺変竴涓猇ector闆嗗悎涓噸澶嶇殑鍏冪礌Vector newVector = new Vector();For (int i=0;io1.age?1:age1 ){聽聽聽聽聽聽聽聽聽聽 regex= "" + seperators[0] + "|" + seperators[1];聽聽聽聽聽聽聽 }else{聽聽聽聽聽聽聽聽聽聽 regex= "" + seperators[0];聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽 words =results.split(regex);聽聽聽 }聽聽聽聽聽聽 public StringnextWord(){聽聽聽聽聽聽聽 if(pos ==words.length)聽聽聽聽聽聽聽聽聽聽 returnnull;聽聽聽聽聽聽聽 returnwords[pos++];聽聽聽 } } 2銆佺紪鍐欎竴涓▼搴忥紝灏哾:\java鐩綍涓嬬殑鎵�鏈�.java鏂囦欢澶嶅埗鍒癲:\jad鐩綍涓嬶紝骞跺皢鍘熸潵鏂囦欢鐨勬墿灞曞悕浠�.java鏀逛负.jad銆傦紙澶у姝ｅ湪鍋氫笂闈㈣繖閬撻锛岀綉涓婅繜鍒扮殑鏈嬪弸涔熻鍋氬仛杩欓亾棰橈紝鎵惧伐浣滃繀椤昏兘缂栧啓杩欎簺绠�鍗曢棶棰樼殑浠ｇ爜锛侊級绛旓細listFiles鏂规硶鎺ュ彈涓�涓狥ileFilter瀵硅薄锛岃繖涓狥ileFilter瀵硅薄灏辨槸杩囪檻鐨勭瓥鐣ュ璞★紝涓嶅悓鐨勪汉鎻愪緵涓嶅悓鐨凢ileFilter瀹炵幇锛屽嵆鎻愪緵浜嗕笉鍚岀殑杩囨护绛栫暐銆俰mport java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.FilenameFilter;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream; public class Jad2Java {聽聽聽聽 public static voidmain(String[] args) throws Exception {聽聽聽聽聽聽聽 File srcDir =new File("java");聽聽聽聽聽聽聽 if(!(srcDir.exists()&& srcDir.isDirectory()))聽聽聽聽聽聽聽聽聽聽聽聽聽聽 thrownew Exception("鐩綍涓嶅瓨鍦�");聽聽聽聽聽聽聽 File[] files= srcDir.listFiles(聽聽聽聽聽聽聽聽聽聽 newFilenameFilter(){聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 publicboolean accept(File dir, String name) {聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 returnname.endsWith(".java");聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽 );聽聽聽聽聽聽聽聽聽聽聽聽聽 System.out.println(files.length);聽聽聽聽聽聽聽 File destDir= new File("jad");聽聽聽聽聽聽聽 if(!destDir.exists())destDir.mkdir();聽聽聽聽聽聽聽 for(File f:files){聽聽聽聽聽聽聽聽聽聽 FileInputStream聽 fis = new FileInputStream(f);聽聽聽聽聽聽聽聽聽聽 StringdestFileName = f.getName().replaceAll("\\.java$", ".jad");聽聽聽聽聽聽聽聽聽聽 FileOutputStreamfos = new FileOutputStream(new File(destDir,destFileName));聽聽聽聽聽聽聽聽聽聽 copy(fis,fos);聽聽聽聽聽聽聽聽聽聽 fis.close();聽聽聽聽聽聽聽聽聽聽 fos.close();聽聽聽聽聽聽聽 }聽聽聽 }聽聽聽聽聽聽 private static voidcopy(InputStream ips,OutputStream ops) throws Exception{聽聽聽聽聽聽聽 int len = 0;聽聽聽聽聽聽聽 byte[] buf =new byte[1024];聽聽聽聽聽聽聽 while((len =ips.read(buf)) != -1){聽聽聽聽聽聽聽聽聽聽 ops.write(buf,0,len);聽聽聽聽聽聽聽 }聽聽聽聽 }} 鐢辨湰棰樻�荤粨鐨勬�濇兂鍙婄瓥鐣ユā寮忕殑瑙ｆ瀽锛�1.class jad2java{聽聽聽 1. 寰楀埌鏌愪釜鐩綍涓嬬殑鎵�鏈夌殑java鏂囦欢闆嗗悎聽聽聽聽聽聽聽 1.1 寰楀埌鐩綍 File srcDir = newFile("d:\\java");聽聽聽聽聽聽聽 1.2 寰楀埌鐩綍涓嬬殑鎵�鏈塲ava鏂囦欢锛欶ile[] files =srcDir.listFiles(new MyFileFilter());聽聽聽聽聽聽聽 1.3 鍙兂寰楀埌.java鐨勬枃浠讹細 class MyFileFilterimplememyts FileFilter{聽聽聽聽聽聽聽聽聽聽 publicboolean accept(File pathname){聽聽聽聽聽聽聽聽聽聽聽聽聽聽 returnpathname.getName().endsWith(".java")聽聽聽聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽聽聽聽 2.灏嗘瘡涓枃浠跺鍒跺埌鍙﹀涓�涓洰褰曪紝骞舵敼鎵╁睍鍚嵚� 聽聽聽聽聽聽 2.1 寰楀埌鐩爣鐩綍锛屽鏋滅洰鏍囩洰褰曚笉瀛樺湪锛屽垯鍒涘缓涔嬄� 聽聽聽聽聽聽 2.2 鏍规嵁婧愭枃浠跺悕寰楀埌鐩爣鏂囦欢鍚嶏紝娉ㄦ剰瑕佺敤姝ｅ垯琛ㄨ揪寮忥紝娉ㄦ剰.鐨勮浆涔夈�偮� 聽聽聽聽聽聽 2.3 鏍规嵁琛ㄧず鐩綍鐨凢ile鍜岀洰鏍囨枃浠跺悕鐨勫瓧绗︿覆锛屽緱鍒拌〃绀虹洰鏍囨枃浠剁殑File銆偮� 聽聽聽聽聽聽聽聽聽 //瑕佸湪纭洏涓噯纭湴鍒涘缓鍑轰竴涓枃浠讹紝闇�瑕佺煡閬撴枃浠跺悕鍜屾枃浠剁殑鐩綍銆偮� 聽聽聽聽聽聽 2.4 灏嗘簮鏂囦欢鐨勬祦鎷疯礉鎴愮洰鏍囨枃浠舵祦锛屾嫹璐濇柟娉曠嫭绔嬫垚涓轰竴涓柟娉曪紝鏂规硶鐨勫弬鏁伴噰鐢ㄦ娊璞℃祦鐨勫舰寮忋�偮� 聽聽聽聽聽聽聽聽聽 //鏂规硶鎺ュ彈鐨勫弬鏁扮被鍨嬪敖閲忛潰鍚戠埗绫伙紝瓒婃娊璞¤秺濂斤紝杩欐牱閫傚簲闈㈡洿瀹藉箍銆� } 鍒嗘瀽listFiles鏂规硶鍐呴儴鐨勭瓥鐣ユā寮忓疄鐜板師鐞咶ile[] listFiles(FileFilter filter){聽聽聽 File[] files =listFiles();聽聽聽 //ArraylistacceptedFilesList = new ArrayList();聽聽聽 File[] acceptedFiles= new File[files.length];聽聽聽 int pos = 0;聽聽聽 for(File file:files){聽聽聽聽聽聽聽 booleanaccepted = filter.accept(file);聽聽聽聽聽聽聽 if(accepted){聽聽聽聽聽聽聽聽聽聽 //acceptedFilesList.add(file);聽聽聽聽聽聽聽聽聽聽 acceptedFiles[pos++]= file;聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽聽聽 }聽聽聽聽聽聽 Arrays.copyOf(acceptedFiles,pos);聽聽聽 //return(File[])accpetedFilesList.toArray();聽聽聽 }3銆佺紪鍐欎竴涓埅鍙栧瓧绗︿覆鐨勫嚱鏁帮紝杈撳叆涓轰竴涓瓧绗︿覆鍜屽瓧鑺傛暟锛岃緭鍑轰负鎸夊瓧鑺傛埅鍙栫殑瀛楃涓诧紝浣嗚淇濊瘉姹夊瓧涓嶈鎴彇鍗婁釜锛屽鈥滄垜ABC鈥濓紝4锛屽簲璇ユ埅鍙栤�滄垜AB鈥濓紝杈撳叆鈥滄垜ABC姹塂EF鈥濓紝6锛屽簲璇ヨ緭鍑衡�滄垜ABC鈥濓紝鑰屼笉鏄�滄垜ABC+姹夌殑鍗婁釜鈥濄�傜瓟锛毬� 聽聽棣栧厛瑕佷簡瑙ｄ腑鏂囧瓧绗︽湁澶氱缂栫爜鍙婂悇绉嶇紪鐮佺殑鐗瑰緛銆偮� 聽鍋囪n涓鸿鎴彇鐨勫瓧鑺傛暟銆偮� 聽聽 public static voidmain(String[] args) throws Exception{聽聽聽聽聽聽聽 String str ="鎴慳鐖变腑鍗巃bc鎴戠埍浼犳櫤def';聽聽聽聽聽聽聽 String str ="鎴慉BC姹�";聽聽聽聽聽聽聽 int num =trimGBK(str.getBytes("GBK"),5);聽聽聽聽聽聽聽 System.out.println(str.substring(0,num));聽聽聽 }聽聽聽聽聽聽 public staticint聽 trimGBK(byte[] buf,int n){聽聽聽聽聽聽聽 int num = 0;聽聽聽聽聽聽聽 booleanbChineseFirstHalf = false;聽聽聽聽聽聽聽 for(inti=0;i=鈥�0鈥�&& ch<=鈥�9鈥�)聽聽 {聽聽聽聽 digitCount++聽聽 }聽聽 elseif((ch>=鈥檃鈥�&& ch<=鈥檢鈥�) || (ch>=鈥橝鈥� && ch<=鈥橺鈥�))聽聽 {聽聽聽聽 engishCount++;聽聽 }聽聽 else聽聽 {聽聽聽聽 chineseCount++;聽聽 }}System.out.println(鈥︹�︹�︹�︹��); 5銆佽鏄庣敓娲讳腑閬囧埌鐨勪簩鍙夋爲锛岀敤java瀹炵幇浜屽弶鏍戣繖鏄粍鍚堣璁℃ā寮忋�傛垜鏈夊緢澶氫釜(鍋囪10涓囦釜)鏁版嵁瑕佷繚瀛樿捣鏉ワ紝浠ュ悗杩橀渶瑕佷粠淇濆瓨鐨勮繖浜涙暟鎹腑妫�绱㈡槸鍚﹀瓨鍦ㄦ煇涓暟鎹紝锛堟垜鎯宠鍑轰簩鍙夋爲鐨勫ソ澶勶紝璇ユ�庝箞璇村憿锛熼偅灏辨槸璇村埆浜虹殑缂虹偣锛夛紝鍋囧瀛樺湪鏁扮粍涓紝閭ｄ箞锛岀宸ц鎵剧殑鏁板瓧浣嶄簬99999閭ｄ釜鍦版柟锛岄偅鏌ユ壘鐨勯�熷害灏嗗緢鎱紝鍥犱负瑕佷粠绗�1涓緷娆″線鍚庡彇锛屽彇鍑烘潵鍚庤繘琛屾瘮杈冦�傚钩琛′簩鍙夋爲锛堟瀯寤哄钩琛′簩鍙夋爲闇�瑕佸厛鎺掑簭锛屾垜浠繖閲屽氨涓嶄綔鑰冭檻浜嗭級鍙互寰堝ソ鍦拌В鍐宠繖涓棶棰橈紝浣嗕簩鍙夋爲鐨勯亶鍘嗭紙鍓嶅簭锛屼腑搴忥紝鍚庡簭锛夋晥鐜囪姣旀暟缁勪綆寰堝锛屽師鐞嗗涓嬪浘锛氫唬鐮佸涓嬶細package com.huawei.interview; publicclass Node {聽聽 public int value;聽聽 public Node left;聽聽 public Node right;聽聽聽 public void store(intvalue)聽聽 {聽聽聽 if(valuethis.value)聽聽聽 {聽聽聽聽聽 if(right ==null)聽聽聽聽聽 {聽聽聽聽聽聽聽 right = new Node();聽聽聽聽聽聽聽 right.value=value;聽聽聽聽聽 }聽聽聽聽聽 else聽聽聽聽聽 {聽聽聽聽聽聽聽 right.store(value);聽聽聽聽聽 }聽聽聽聽聽聽聽聽 }聽聽 }聽聽聽 public boolean find(intvalue)聽聽 {聽聽聽聽 System.out.println("happen" +this.value);聽聽聽 if(value ==this.value)聽聽聽 {聽聽聽聽聽 return true;聽聽聽 }聽聽聽 else if(value>this.value)聽聽聽 {聽聽聽聽聽 if(right ==null)returnfalse;聽聽聽聽聽 return right.find(value);聽聽聽 }else聽聽聽 {聽聽聽聽聽 if(left ==null)returnfalse;聽聽聽聽聽 return left.find(value);聽聽聽 }聽聽 }聽聽聽 public聽 void preList()聽聽 {聽聽聽 System.out.print(this.value+ ",");聽聽聽 if(left!=null)left.preList();聽聽聽 if(right!=null) right.preList();聽聽 }聽聽聽 public void middleList()聽聽 {聽聽聽 if(left!=null)left.preList();聽聽聽 System.out.print(this.value+ ",");聽聽聽 if(right!=null)right.preList();聽聽聽聽聽 }聽聽 public void afterList()聽聽 {聽聽聽 if(left!=null)left.preList();聽聽聽 if(right!=null)right.preList();聽聽聽 System.out.print(this.value+ ",");聽聽聽聽聽 }聽聽聽 public static voidmain(String [] args)聽聽 {聽聽聽 int [] data =new int[20];聽聽聽 for(inti=0;ithis.value)聽聽聽 {聽聽聽聽聽 if(right != null)聽聽聽聽聽聽聽 right.add(value);聽聽聽聽聽 else聽聽聽聽聽 {聽聽聽聽聽聽聽 Node node = new Node(value);聽聽聽聽聽聽聽聽聽聽聽聽聽 right = node;聽聽聽聽聽 }聽聽聽 }聽聽聽 else{聽聽聽聽聽 if(left != null)聽聽聽聽聽聽聽 left.add(value);聽聽聽聽聽 else聽聽聽聽聽 {聽聽聽聽聽聽聽 Node node = new Node(value);聽聽聽聽聽聽聽聽聽聽聽聽聽 left = node;聽聽聽聽聽 }聽聽聽聽聽聽聽聽 }聽聽 }聽聽聽 public boolean find(int value){聽聽聽 if(value == this.value) return true;聽聽聽 else if(value > this.value){聽聽聽聽聽 if(right == null) return false;聽聽聽聽聽 else return right.find(value);聽聽聽 }else{聽聽聽聽聽 if(left == null) return false;聽聽聽聽聽 else return left.find(value);聽聽聽聽聽聽聽聽 }聽聽 }聽聽聽 public void display(){聽聽聽 System.out.println(value);聽聽聽 if(left != null) left.display();聽聽聽 if(right != null) right.display();聽聽聽聽聽 }聽聽聽 /*public Iterator iterator(){聽聽聽聽聽 }*/聽聽聽 public static void main(String[] args){聽聽聽 int[] values = new int[8];聽聽聽 for(int i=0;i<8;i++){聽聽聽聽聽 int num = (int)(Math.random() * 15);聽聽聽聽聽 //System.out.println(num);聽聽聽聽聽 //if(Arrays.binarySearch(values,num)<0)聽聽聽聽聽 if(!contains(values,num))聽聽聽聽聽聽聽 values[i] = num;聽聽聽聽聽 else聽聽聽聽聽聽聽 i--;聽聽聽 }聽聽聽聽聽聽 System.out.println(Arrays.toString(values));聽聽聽聽聽聽 Node root = new Node(values[0]);聽聽聽 for(int i=1;iuser2.value)聽聽聽聽聽聽聽聽聽聽 {聽聽聽聽聽聽聽聽聽聽聽聽 return 1;聽聽聽聽聽聽聽聽聽聽 }else聽聽聽聽聽聽聽聽聽聽 {聽聽聽聽聽聽聽聽聽聽聽聽 returnuser1.name.compareTo(user2.name);聽聽聽聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 }聽聽聽 );聽聽聽 Iterator iterator =results.keySet().iterator();聽聽聽 while(iterator.hasNext())聽聽聽 {聽聽聽聽聽 String name = (String)iterator.next();聽聽聽聽聽 Integer value =(Integer)results.get(name);聽聽聽聽聽 if(value > 1)聽聽聽聽聽 {聽聽聽聽聽聽聽聽聽聽聽聽聽 sortedResults.add(newUser(name,value));聽聽聽聽聽聽聽聽聽聽聽 }聽聽聽 }聽聽聽聽聽聽 printResults(sortedResults);聽聽 }聽聽 private static voidprintResults(TreeSet sortedResults)聽聽 {聽聽聽 Iterator iterator聽 = sortedResults.iterator();聽聽聽 while(iterator.hasNext())聽聽聽 {聽聽聽聽聽 User user = (User)iterator.next();聽聽聽聽聽 System.out.println(user.name +":" + user.value);聽聽聽 }聽聽聽 }聽聽 public static voiddealLine(String line,Map map)聽聽 {聽聽聽 if(!"".equals(line.trim()))聽聽聽 {聽聽聽聽聽 String [] results =line.split(",");聽聽聽聽聽 if(results.length == 3)聽聽聽聽聽 {聽聽聽聽聽聽聽 String name = results[1];聽聽聽聽聽聽聽 Integer value =(Integer)map.get(name);聽聽聽聽聽聽聽 if(value ==null)value = 0;聽聽聽聽聽聽聽 map.put(name,value + 1);聽聽聽聽聽 }聽聽聽 }聽聽 } }7銆佸啓涓�涓猄ingleton鍑烘潵銆傜涓�绉嶏細楗辨眽妯″紡public classSingleTon {聽聽 private SingleTon(){聽聽聽 }聽聽 //瀹炰緥鍖栨斁鍦ㄩ潤鎬佷唬鐮佸潡閲屽彲鎻愰珮绋嬪簭鐨勬墽琛屾晥鐜囷紝浣嗕篃鍙兘鏇村崰鐢ㄧ┖闂绰� 聽聽 private final static SingleTon instance =new SingleTon();聽聽 public static SingleTon getInstance(){聽聽聽 return instance;聽聽 }} 绗簩绉嶏細楗ユ眽妯″紡public classSingleTon {聽聽 private SingleTon(){}聽聽聽 private static instance = null;//newSingleTon();聽聽聽 public static synchronized SingleTongetInstance(){聽聽聽 if(instance == null)聽聽聽聽聽 instance = new SingleTon();聽聽聽 return instance;聽聽 }} 绗笁绉嶏細鐢ㄦ灇涓韭� 聽 public enum SingleTon{聽聽聽 ONE;聽聽聽 } 绗笁锛氭洿瀹為檯鐨勫簲鐢紙鍦ㄤ粈涔堟儏鍐电敤鍗曚緥锛塸ublic classSequenceGenerator{聽聽 //涓嬮潰鏄绫昏嚜韬殑涓氬姟鍔熻兘浠ｇ爜聽聽 private int count = 0;聽聽 public synchronized int getSequence(){聽聽聽 ++count;聽聽 }聽聽聽 //涓嬮潰鏄妸璇ョ被鍙樻垚鍗曚緥鐨勪唬鐮伮� 聽 private SequenceGenerator(){}聽聽 private final static instance = newSequenceGenerator();聽聽 public static SingleTon getInstance(){聽聽聽 return instance;聽聽 }聽聽 } 绗洓锛毬� 聽 public class MemoryDao聽聽 {聽聽 private HashMap map = new HashMap();聽聽聽 publicvoid add(Student stu1){聽聽聽聽聽聽 map.put(SequenceGenerator.getInstance().getSequence(),stu1);聽聽 }聽聽 //鎶奙emoryDao鍙樻垚鍗曚緥聽 }聽聽聽 Singleton妯″紡涓昏浣滅敤鏄繚璇佸湪Java搴旂敤绋嬪簭涓紝涓�涓被Class鍙湁涓�涓疄渚嬪瓨鍦ㄣ�備竴鑸琒ingleton妯″紡閫氬父鏈夊嚑绉嶇褰㈠紡:绗竴绉嶅舰寮�: 瀹氫箟涓�涓被锛屽畠鐨勬瀯閫犲嚱鏁颁负private鐨勶紝瀹冩湁涓�涓猻tatic鐨刾rivate鐨勮绫诲彉閲忥紝鍦ㄧ被鍒濆鍖栨椂瀹炰緥璇濓紝閫氳繃涓�涓猵ublic鐨刧etInstance鏂规硶鑾峰彇瀵瑰畠鐨勫紩鐢�,缁ц�岃皟鐢ㄥ叾涓殑鏂规硶銆俻ublic class Singleton {private Singleton(){}聽聽 //鍦ㄨ嚜宸卞唴閮ㄥ畾涔夎嚜宸变竴涓疄渚嬶紝鏄笉鏄緢濂囨�紵聽聽 //娉ㄦ剰杩欐槸private鍙緵鍐呴儴璋冪敤聽聽 private staticSingleton instance = new Singleton();聽聽 //杩欓噷鎻愪緵浜嗕竴涓緵澶栭儴璁块棶鏈琧lass鐨勯潤鎬佹柟娉曪紝鍙互鐩存帴璁块棶銆�銆�聽聽 public staticSingleton getInstance() {聽聽 return instance;聽聽 }聽 }聽绗簩绉嶅舰寮�:public class Singleton {private static Singleton instance = null;public static synchronized Singleton getInstance() {//杩欎釜鏂规硶姣斾笂闈㈡湁鎵�鏀硅繘锛屼笉鐢ㄦ瘡娆￠兘杩涜鐢熸垚瀵硅薄锛屽彧鏄涓�娆°��銆�銆�//浣跨敤鏃剁敓鎴愬疄渚嬶紝鎻愰珮浜嗘晥鐜囷紒if (instance==null)instance锛漬ew Singleton();聽聽聽聽聽聽聽 return instance;聽 }}鍏朵粬褰㈠紡:瀹氫箟涓�涓被锛屽畠鐨勬瀯閫犲嚱鏁颁负private鐨勶紝鎵�鏈夋柟娉曚负static鐨勩�備竴鑸涓虹涓�绉嶅舰寮忚鏇村姞瀹夊叏浜�8銆侀�掑綊绠楁硶棰�1涓�涓暣鏁帮紝澶т簬0锛屼笉鐢ㄥ惊鐜拰鏈湴鍙橀噺锛屾寜鐓锛�2n锛�4n锛�8n鐨勯『搴忛�掑锛屽綋鍊煎ぇ浜�5000鏃讹紝鎶婂�兼寜鐓ф寚瀹氶『搴忚緭鍑烘潵銆備緥锛歯=1237鍒欒緭鍑轰负锛�1237锛�2474锛�4948锛�9896锛�9896锛�4948锛�2474锛�1237锛屾彁绀猴細鍐欑▼搴忔椂锛屽厛鑷磋阿鎸夐�掑鏂瑰紡鐨勪唬鐮侊紝鍐欏ソ閫掑鐨勪互鍚庯紝鍐嶅鍔犺�冭檻閫掑噺閮ㄥ垎銆偮� 聽 public static void doubleNum(int n)聽聽 {聽聽聽 System.out.println(n);聽聽聽 if(n<=5000)聽聽聽聽聽 doubleNum(n*2);聽聽聽 System.out.println(n);聽聽聽聽 }Gaibaota(N) = Gaibaota(N-1) + n聽 9銆侀�掑綊绠楁硶棰�2绗�1涓汉10锛岀2涓瘮绗�1涓汉澶�2宀侊紝渚濇閫掓帹锛岃鐢ㄩ�掑綊鏂瑰紡璁＄畻鍑虹8涓汉澶氬ぇ锛焢ackage cn.itcast; import java.util.Date; publicclass A1 {聽聽 public static voidmain(String [] args)聽聽 {聽聽聽 System.out.println(computeAge(8));聽聽 }聽聽聽 public static int computeAge(intn)聽聽 {聽聽聽 if(n==1)return 10;聽聽聽 returncomputeAge(n-1) + 2;聽聽 }}聽聽 public static voidtoBinary(int n,StringBuffer result)聽聽 {聽聽聽聽 if(n/2 != 0)聽聽聽聽聽 toBinary(n/2,result);聽聽聽 result.append(n%2);聽聽聽聽 }10銆佹帓搴忛兘鏈夊摢鍑犵鏂规硶锛熻鍒椾妇銆傜敤JAVA瀹炵幇涓�涓揩閫熸帓搴忋�� 鏈汉鍙爺绌惰繃鍐掓场鎺掑簭銆侀�夋嫨鎺掑簭鍜屽揩閫熸帓搴忥紝涓嬮潰鏄揩閫熸帓搴忕殑浠ｇ爜锛歱ublic class QuickSort {/*** 蹇�熸帓搴�* @param strDate* @param left* @param right*/public void quickSort(String[] strDate,int left,int right){String middle,tempDate;int i,j;i=left;j=right;middle=strDate[(i+j)/2];do{while(strDate[i].compareTo(middle)<0&& i0&& j>left)j--; //鎵惧嚭鍙宠竟姣斾腑闂村�煎皬鐨勬暟if(i<=j){ //灏嗗乏杈瑰ぇ鐨勬暟鍜屽彸杈瑰皬鐨勬暟杩涜鏇挎崲tempDate=strDate[i];strDate[i]=strDate[j];strDate[j]=tempDate;i++;j--;}}while(i<=j); //褰撲袱鑰呬氦閿欐椂鍋滄if(ileft){quickSort(strDate,left,j);}}/**聽 * @param args聽 */public static void main(String[] args){String[] strVoid=newString[]{"11","66","22","0","55","22","0","32"};QuickSort sort=new QuickSort();sort.quickSort(strVoid,0,strVoid.length-1);for(int i=0;i锛堜竴鍗冮浂涓�鎷句竴鍏冩暣锛夎緭鍑恒�傚幓闆剁殑浠ｇ爜锛毬� 聽 returnsb.reverse().toString().replaceAll("闆禰鎷句桨浠焆","闆�").replaceAll("闆�+涓�","涓�").replaceAll("闆�+鍏�","鍏�").replaceAll("闆�+","闆�"); public class RenMingBi {聽聽聽聽 /**聽聽聽聽 * @param args add by zxx ,Nov 29, 2008聽聽聽聽 */聽聽聽 private static 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锛堜竴涓姹傛潵浜嗙殑鎵ц娴佺▼杩涜鍒嗘瀽锛宻truts2鏄嚜鍔ㄦ敮鎸佸垎妯″潡寮�鍙戯紝骞跺彲浠ヤ笉鍚屾ā鍧楄缃笉鍚岀殑url鍓嶇紑锛岃繖鏄�氳繃package鐨刵amespace鏉ュ疄鐜扮殑锛泂truts2鏄敮鎸佸绉嶇被鍨嬬殑瑙嗗浘锛泂truts2鐨勮鍥惧湴鍧�鍙互鏄姩鎬佺殑锛屽嵆瑙嗗浘鐨勫悕绉版槸鏀寔鍙橀噺鏂瑰紡鐨勶紝涓句緥锛岃鍧涘彂甯栧け璐ュ悗鍥炴潵杩樿浼犻�抌oardid銆傝鍥惧唴瀹规樉绀烘柟闈細瀹冪殑鏍囩鐢╫gnl锛岃el寮哄ぇ寰堝锛屽湪鍥介檯鍖栨柟闈㈡敮鎸佸垎妯″潡绠＄悊锛屼袱涓ā鍧楃敤鍒板悓鏍风殑key锛屽搴斾笉鍚岀殑娑堟伅锛涳級聽聽聽聽涓嶴truts1涓嶅悓锛孲truts2瀵圭敤鎴风殑姣忎竴娆¤姹傞兘浼氬垱寤轰竴涓狝ction锛屾墍浠truts2涓殑Action鏄嚎绋嬪畨鍏ㄧ殑銆� 缁欐垜鍗拌薄鏈�娣卞埢鐨勬槸锛歴truts閰嶇疆鏂囦欢涓殑redirect瑙嗗浘鐨剈rl涓嶈兘鎺ュ彈鍙傛暟锛岃�宻truts2閰嶇疆鏂囦欢涓殑redirect瑙嗗浘鍙互鎺ュ彈鍙傛暟銆偮� 9銆乭ibernate涓殑update()鍜宻aveOrUpdate()鐨勫尯鍒紝session鐨刲oad()鍜実et()鐨勫尯鍒��10銆佺畝杩� Hibernate鍜� JDBC鐨勪紭缂虹偣?濡備綍涔﹀啓涓�涓� one to many閰嶇疆鏂囦欢.11銆乮Batis涓嶩ibernate鏈変粈涔堜笉鍚�?鐩稿悓鐐癸細灞忚斀jdbc api鐨勫簳灞傝闂粏鑺傦紝浣跨敤鎴戜滑涓嶇敤涓巎dbc api鎵撲氦閬擄紝灏卞彲浠ヨ闂暟鎹�俲dbc api缂栫▼娴佺▼鍥哄畾锛岃繕灏唖ql璇彞涓巎ava浠ｇ爜娣锋潅鍦ㄤ簡涓�璧凤紝缁忓父闇�瑕佹嫾鍑憇ql璇彞锛岀粏鑺傚緢绻佺悙銆俰batis鐨勫ソ澶勶細灞忚斀jdbc api鐨勫簳灞傝闂粏鑺傦紱灏唖ql璇彞涓巎ava浠ｇ爜杩涜鍒嗙;鎻愪緵浜嗗皢缁撴灉闆嗚嚜鍔ㄥ皝瑁呯О涓哄疄浣撳璞″拰瀵硅薄鐨勯泦鍚堢殑鍔熻兘锛宷ueryForList杩斿洖瀵硅薄闆嗗悎锛岀敤queryForObject杩斿洖鍗曚釜瀵硅薄锛涙彁渚涗簡鑷姩灏嗗疄浣撳璞＄殑灞炴�т紶閫掔粰sql璇彞鐨勫弬鏁般�� 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=map.get(id)聽聽聽聽聽聽聽 if(user ==null)聽聽聽聽聽聽聽 {聽聽聽聽聽聽聽聽聽聽 user =session.get(id);聽聽聽聽聽聽聽聽聽聽 map.put(id,user);聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽 return user;聽聽聽 }} Dao{聽聽聽 Cache cache = null聽聽聽 setCache(Cachecache)聽聽聽 {聽聽聽聽聽聽聽 this.cache =cache聽聽聽 }聽聽聽聽聽聽 User getUser(int id)聽聽聽 {聽聽聽聽聽聽聽 if(cache!=null)聽聽聽聽聽聽聽 {聽聽聽聽聽聽聽聽聽聽 Useruser = cache.get(id);聽聽聽聽聽聽聽聽聽聽 if(user==null)聽聽聽聽聽聽聽聽聽聽 {聽聽聽聽聽聽聽聽聽聽聽聽聽聽 user= session.get(id);聽聽聽聽聽聽聽聽聽聽聽聽聽聽 cache.put(id,user);聽聽聽聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽聽聽聽 returnuser;聽聽聽聽聽聽聽 }聽聽聽聽聽聽聽聽聽聽聽聽聽 returnsession.get(id);聽聽聽 }}锛�2锛塇ibernate鐨凷ession灏辨槸涓�绉嶇紦瀛橈紝鎴戜滑閫氬父灏嗕箣绉颁负Hibernate鐨勪竴绾х紦瀛橈紝褰撴兂浣跨敤session浠庢暟鎹簱涓煡璇㈠嚭涓�涓璞℃椂锛孲ession涔熸槸鍏堜粠鑷繁鍐呴儴鏌ョ湅鏄惁瀛樺湪杩欎釜瀵硅薄锛屽瓨鍦ㄥ垯鐩存帴杩斿洖锛屼笉瀛樺湪鎵嶅幓璁块棶鏁版嵁搴擄紝骞跺皢鏌ヨ鐨勭粨鏋滀繚瀛樺湪鑷繁鍐呴儴銆傜敱浜嶴ession浠ｈ〃涓�娆′細璇濊繃绋嬶紝涓�涓猄ession涓庝竴涓暟鎹簱杩炴帴鐩稿叧杩烇紝鎵�浠ession鏈�濂戒笉瑕侀暱鏃堕棿淇濇寔鎵撳紑锛岄�氬父浠呯敤浜庝竴涓簨鍔″綋涓紝鍦ㄤ簨鍔＄粨鏉熸椂灏卞簲鍏抽棴銆傚苟涓擲ession鏄嚎绋嬩笉瀹夊叏鐨勶紝琚涓嚎绋嬪叡浜椂瀹规槗鍑虹幇闂銆傞�氬父鍙湁閭ｇ鍏ㄥ眬鎰忎箟涓婄殑缂撳瓨鎵嶆槸鐪熸鐨勭紦瀛樺簲鐢紝鎵嶆湁杈冨ぇ鐨勭紦瀛樹环鍊硷紝鍥犳锛孒ibernate鐨凷ession杩欎竴绾х紦瀛樼殑缂撳瓨浣滅敤骞朵笉鏄庢樉锛屽簲鐢ㄤ环鍊间笉澶с�侶ibernate鐨勪簩绾х紦瀛樺氨鏄涓篐ibernate閰嶇疆涓�绉嶅叏灞�缂撳瓨锛岃澶氫釜绾跨▼鍜屽涓簨鍔￠兘鍙互鍏变韩杩欎釜缂撳瓨銆傛垜浠笇鏈涚殑鏄竴涓汉浣跨敤杩囷紝鍏朵粬浜轰篃鍙互浣跨敤锛宻ession娌℃湁杩欑鏁堟灉銆傦紙3锛変簩绾х紦瀛樻槸鐙珛浜嶩ibernate鐨勮蒋浠堕儴浠讹紝灞炰簬绗笁鏂圭殑浜у搧锛屽涓巶鍟嗗拰缁勭粐閮芥彁渚涙湁缂撳瓨浜у搧锛屼緥濡傦紝EHCache鍜孫SCache绛夌瓑銆傚湪Hibernate涓娇鐢ㄤ簩绾х紦瀛橈紝棣栧厛灏辫鍦╤ibernate.cfg.xml閰嶇疆鏂囦欢涓厤缃娇鐢ㄥ摢涓巶瀹剁殑缂撳瓨浜у搧锛屾帴鐫�闇�瑕侀厤缃缂撳瓨浜у搧鑷繁鐨勯厤缃枃浠讹紝鏈�鍚庤閰嶇疆Hibernate涓殑鍝簺瀹炰綋瀵硅薄瑕佺撼鍏ュ埌浜岀骇缂撳瓨鐨勭鐞嗕腑銆傛槑鐧戒簡浜岀骇缂撳瓨鍘熺悊鍜屾湁浜嗚繖涓�濊矾鍚庯紝寰堝鏄撻厤缃捣Hibernate鐨勪簩绾х紦瀛樸�傛墿灞曠煡璇嗭細涓�涓猄essionFactory鍙互鍏宠仈涓�涓簩绾х紦瀛橈紝涔熷嵆涓�涓簩绾х紦瀛樺彧鑳借礋璐ｇ紦瀛樹竴涓暟鎹簱涓殑鏁版嵁锛屽綋浣跨敤Hibernate鐨勪簩绾х紦瀛樺悗锛屾敞鎰忎笉瑕佹湁鍏朵粬鐨勫簲鐢ㄦ垨SessionFactory鏉ユ洿鏀瑰綋鍓嶆暟鎹簱涓殑鏁版嵁锛岃繖鏍风紦瀛樼殑鏁版嵁灏变細涓庢暟鎹簱涓殑瀹為檯鏁版嵁涓嶄竴鑷淬�� 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The Java Servlet and JavaServer Pagesspecifications are developed by Sun under theJavaCommunity Process.Apache Tomcat is developed in an open andparticipatory environment and released under theApacheSoftware License. Apache Tomcat is intended to be a collaboration ofthe best-of-breed developers from around the world. We invite you toparticipate in this open development project. To learn more about gettinginvolved,click here.ApacheTomcat powers numerous large-scale, mission-critical web applications across adiverse range of industries and organizations. Some of these users and theirstories are listed on thePoweredBy wiki page.3銆佺編璧勮蒋浠跺叕鍙窲AVA宸ョ▼甯堢數璇濋潰璇曢鐩�1. Talk about overriding, overloading.2. Talk about JAVA design patterns you known.3. Talk about the difference between LinkList, ArrayList and Victor.4. Talk about the difference between an Abstract class and an Interface.5. Class a = new Class(); Class b = new Class(); if(a == b) returns true or false, why?6. Why we use StringBuffer when concatenating strings?7. Try to explain Singleton to us? Is it thread safe? If no, how to make itthread safe?8. Try to explain Ioc?9. How to set many-to-many relationship in Hibernate?10. Talk about the difference between INNER JOIN and LFET JOIN.11. Why we use index in database? How many indexes is the maximum in one tableas your suggestion?12. When 鈥楩inal鈥� is used in class, method and property, what dose it mean?13. Do you have any experience on XML? Talk about any XML tool youused ,e.g. JAXB, JAXG.14. Do you have any experience on Linux?15. In OOD what is the reason when you create a Sequence diagram?Administrator 10:34:201锛屽爢鍜屾爤鐨勫尯鍒紝鏈変竴涓�64k鐨勫瓧绗︿覆锛屾槸鏀惧埌鍫嗕笂锛岃繕鏄斁鍒版爤涓婏紝涓轰粈涔堬紵2锛屼粈涔堟椂鍊欑敤鍒版帴鍙ｏ紝浠�涔堟椂鍊欑敤鍒版娊璞＄被锛屼簩鑰呭尯鍒�3锛屾湁涓�涓�100涓囩殑鏁扮粍锛岄噷杈规湁涓や釜甯傞噸澶嶇殑锛屽浣曡璁＄畻娉曟壘鍒般��4锛岃璁℃暟鎹簱鏃讹紝n缁达紝濡備綍璁捐銆備緥濡俒鐪佷唤][鍩庡競][缃戝惂]锛岃繖鏄笁缁村叧绯伙紝瀹冪殑琛ㄤ篃搴旇鏈変笁涓紝缃戝惂鏈夊閿紩鐢ㄥ煄甯傦紝鍩庡競鏈夊閿簲鐢ㄧ渷浠斤紝杩欎釜瑙勫緥灏辨槸涓嬪眰鐨勮鏈変竴澶栭敭鍘诲紩鐢ㄤ笂灞傘��

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