23intage;ᩭ#ᩖḄdᱥ ᨵR☢ 6vwC◤⌕+ Ḅ ᡠ¢£☢ḄmCᒹ¤ឋ "#¥_¦ §ᵨ_9¢¨©ὃ⇋cuz᪗|ᐵḄª⁚ᡃ_Ḅᳮ "#8⌕ᵨ2®¯dᱥḄᡠᨵ☢ ᪵±²Ḅᑁ³"´R+ ]#⌕ᗐ ᑜᑖ·⚪Ḅ¸¹ vw◤⌕º= "Cὃ⇋º=»¼`ᙠ½¾mḄ¿ 9¢ᙠ^ÁÂᙠḄmḄÃẠi£ᩭÅ Æ^ÁÂᙠḄmᡠḄᑁ³-Ḅᑁ³ p9¢ÇᐭÉÊËḄᑁ³ ᡈÍᦋÎᩭḄ§i〉ᔠᱯÑḄ◤⌕ "#»¼»¼#!m,ᐳÒ᱄mᦪÕḄ%ᑴ #mi×Ḅ¥ᐵ ØÙ+ÚSḄ9Ûᵨឋ9ÝឋR`R#ᢣVßḄàᵨáᡠᢣᔣḄᐹämåZU5àᵨáWbḄIᵨᙠæV¿p8ç ]#ᙠVßèé×Dç ᓽàᵨá᎔ìrᢣᔣímḄ½ 5àᵨáWbḄIᵨᑮì#ím½¾Ḅ îïᙠᵫVßèé×D:ð6ᙠVßè¿DçᐹäḄm ᪵ 8ᵨÍᦋñVßòṹ "9¢ôàᵨáõᑮᔜ¥8Ḅm½¾£ ÷]øù5àᵨIᵨḄᐹäúiᦋ ᓽ8ÍᦋVßòṹ"9¢ᦋVßè¿ᡠõḄᐹäòṹ ôVß9¢⌱üRè "#RឋRឋýþ+ÚSḄᮣ ឋឋ☢ṹḄUserDao
24ᵨuserDaoᢣᔣḄ ᵫdaofactory.getDaoᙠ#Ḅ$&'ᨵ$ᢣᔣḄUserJdbcDao) *ᨵ$ᢣᔣḄUserHibernateDao) *)᪵,ᵨ-ᦋ/ṹ012ᦋuserDaoᢣᔣḄᐹ45 *6789userDao.insertUser:;<ᵨḄᐹ4ṹ=>?ᦋᓽᨵ$<ᵨḄUserJdbcDaoḄinsertUser:;ᨵ$<ᵨḄUserHibernateDaoḄinsertUser:;BUserDaouserDao=daofactory.getDao();userDao.insertUser(user);CDBEᔛGHIᑮḄKLMNLO23ஹjava *QḄSᑴUVO☠Ḅ᱄5ᡈḄᵨ12ᢣᔣZ5ᡈᐹ4 *5Ḅ 7[\<ᵨḄ:;ᙠ]#^_`a0ᵨᡠᢣᔣḄᐹ4 Ḅ:;=0ᑁdefᙠ]#Ḅg Ḅ:;7,ᵨḄ5hḄ:;24ஹabstractclassinterfaceᨵUVijOkᨵabstract-⛲mḄclassᓽno 5abstract5,pqrḄ kᨵabstract:;Ḅ5stnabstractclass,abstractclass5Ḅ:;,so Ḅabstractclass5o :;stᙠᐹ4(Concrete)Z5 *ᡠ2,pᨵo ᪀⌼:;ᡈo ☟:;xḄZ5yᨵ *o ᱄5Ḅᡠᨵo :;gVZ5=stnabstract5h(interface)12zᡂo 5Ḅ|ᱯḄᡠᨵ:;~sto ḄḄ:;npublicabstract5hḄᡂᕒ5hnpublicstaticfinalo☢CὅḄ;ijB1.o 512ᨵ᪀⌼:;,pᨵ᪀⌼:;2.o 512ᨵᡂᕒyᨵᡂᕒ3.o 512ᒹko Ḅ:;Ḅᡠᨵ:;st~o Ḅ,pᨵo Ḅ:;
254.o 5Ḅo :;Ḅ5h12public,protected5hᯠeclipse,┯=,#Ḅo :;ppublic5hḄᓽnpublicabstract5h5.o 512ᒹk☟:;,pᒹk☟:;6.o 5~12ᒹk☟ᡂᕒo 5Ḅ☟ᡂᕒḄ5h12Ḅppublicstaticfinal5hᓽnpublicstaticfinal5h7.512 *Qpo 5☢ḼzzὅᙠᵨḄijBQḄᙠ¡¢£᪀¤¥:;¦ᢵ¨ᵨ©⌕ᵨ«¬ᙽ?®Ḅ¯±7o 5ᙠṹ *:☢¦ᢵ¨ᵨ12 *ṹḄ²ᵨ¬³:;¤¥¬´o 5ḄᐺhᵨᎷ¤·⚗¹ḄᡠᨵServlet5~⌕ᵨº»Ḅ:´¼#ᩗ▲ᑨÀஹÁÂÃÄᜐᳮÇÈgV012o ḄÉ5ÊᡠᨵḄServlet~)o É5ᙠo É5Ḅservice:;Ëᡂᩗ▲ᑨÀஹÁÂÃÄᜐᳮÇÈḄṹᙠᔜZ5ËᡂᔜÍḄÎÏÐÑṹÒṹB
26
27publicabstractclassBaseServletextendsHttpServlet{publicfinalvoidservice(HttpServletRequestrequestzHttpServletResponseresponse)throwslOExcetion,ServletException{ÁÂÃÄ
28¼#ᩗ▲ᑨÀifᐹᨵᩗ▲Ótry{doService(request,response);catch(Excetpione){ÁÂÇȯÔ
29}protectedabstractvoiddoService(HttpServietRequestrequest,HttpServletResponseresponse)throwslOExcetion,ServletException;//ᩗ▲ᡂprotected,,,ᵨḄ)publicclassMyServlet1extendsBaseServlet
30protectedvoiddoService(HttpServletRequestrequest,HttpServletResponseresponse)throwslOExcetion,ServletExceptionÕServletᜐᳮḄᐹ4ÎÏÐÑṹ᱄5:;®Ḅ·Öṹ,×ᶇÙZ5Ú0ᵨ¬³:;¤¥¬´ᜓÜB)⍝⚪Ḅßàᐜ6â4ãäo 5ḄÉÕᭆæᯠçCὅḄ;è⁚ᨬçzὅḄᵨijCὅ;è⁚ijḄᩩᳮBᐜ65Ḅ᪀⌼:;ஹᡂᕒ:;ᒹìo :;☟:;ឋí6:☢⌲ïC'ðḼ6ñòὅḄóôḄ'ðᱯjᨬçᵨõᐺhḄZᩭ*Í÷øùḄᢈûüý
3125ஹabstractḄmethodᔲ1»$static,ᔲ1»$native,ᔲ1»$synchronized?abstractḄmethod,12staticḄÿ Ḅ⌕Ḅstaticᐵnative⊤⌕ᵨ !Ḅ"#$%Ḅ&ᙠḼḄ)⚪ᡠ,-./Ḅ/abstract0ᵨ2FileOutputSteam⌕45ᡭ7⍝,:;ḄᵨḄ<=>?ᐵḄapi2ᙠwindowsᵨc$%Ḅᡠ,@AjdkḄBCṹE,FFileOutputStreamḄopenḄGHIJprivatenativevoidopen(Stringname)throwsFileNotFoundException;KᡃM⌕ᵨjavaNᵨOPᑏḄc$%RᦪᡃMTUVNᵨḄᡃM◤⌕ᢥ᯿javaḄ⌕Zᑏ [c$%ḄRᦪ\ᡃMḄ][c$%Rᦪ^NᵨOPḄc$%Rᦪᵫ`ᡃMḄc$%RᦪᢥjavaḄ⌕ZᩭᑏḄᡃM][c$%RᦪbE,javacVjavadeḄcVfbGHgᡃM][cRᦪ?chḄjavaichḄ◤⌕ᑏᐹkḄCṹl◤⌕ᙠm☢opnativeoᐵ`synchronizedabstractᔠᵨḄ)⚪ᡃrs.tu ᙠᡃvwḄxyz{Fi|ᩭ}~ᑮ] ᡃrssynchronizedh=ᵨᙠ [ᐹkḄᨵHḄsynchronizedᡠᵨḄ┝cthis,TGthis26ஹᑁStaticNestedClasszInnerClassḄᑁbᙠ [ḄᑁGHḄᑁi/GH☟ᡂᕒ(☟ᡂᕒcḄᱯឋ [ᜐᡠ,◤⌕¢ᑮ [i£] ¤¥¦§¨⌕©-¢ᑮᑁḄ [iᑖ«¬ᑁ ®§¯] ¦T°®§
32¯ᡃ±E/²ᯠ☟ᡂᕒ´C$%Ḅᐰ¶·¸ᑁ¹ºᵨ`»¼ᑁcᵨḄᡠ,©“ᐰ¶·¸”¢ᙠᑁib¿THḄ¦²ᯠ¿THḄ¦bhἭÁÂᑁE,UVÃ)iḄᡂᕒ·¸ᑁE,GHᙠḄ☢.E,GHᙠḄkiIᡠJ
33publicclassOuter
34intout_x=0;publicvoidmethod(){Inner1inner1=newInner1();publicclassInner2//ᙠ !ᑁ#Ḅᑁ#publicmethod()outx3;
35Inner2inner2newInner2();publicclassInnerl//ᙠ !☢Ḅᑁ#}
36ᙠk☢GHḄᑁḄÃ)ÄE,public,protecte,ÅÆḄprivateÇ4 Ä]bÈÉiGHḄᡂᕒ·¸ᨵ4 Ã)Ä ᪵-MËG][ᑁḄGHcᐸÍᔲE~Ïc`] ᡃM.E,ᙠ☢»¼ᑁḄ2c»¼ᑁḄ2cÐ G⌕ᐜ»¼Ḅ2cᯠÒᵨ][Ḅ2c^»¼ᑁḄ2cCṹIJOuterouter=newOuter();Outer.Inner1inner1=outer.newInnner1();ᙠᑁGHḄᑁm☢/ᨵÃ)ÄÓ⛲ÕbÈÉiGHḄ¶·¸ ᪵l] ᑁḄm☢E,ᵨfinalᡈabstractÓ⛲Õ] ᑁcᐸÍE~ḄᐸÍT×ᵨ] ᑁl] ᑁ»¼Ḅ2cE,Ø⌴ÚᐸÍÃ)] ᑁÛÜᐜGHÒᵨᓽᑁḄGHCṹÛÜgᙠᵨm]iḄ¶·¸ÛÜᐜGHÒᵨḄ⍝ᳮ. ᪵Ḅ] ᑁE,Ã)kiḄ¶·¸l¶·¸mÛÜßfinalÓ⛲Õc`]àá⁚⌕ᙠeclipseᑏCṹãã᪷å{Fæᐹ¬Ḅᔜ┯éêëbE,ìíᑮᙠkᑁ¨E,îᵨI$ᩭ»¼ ïðᑁᓽGHñ VòᡈḄḄШ»¼Ḅ2cT◤ GHðóJ
37publicclassOuter
38publicvoidstart()newThread(newRunable(){publicvoidrun(){};}).start();}
39ᨬÒᙠGHḄᑁm☢E,ßstaticᐵõö|ᡂ StaticNestedClass,-÷ᐹᨵᑁḄᱯឋᡠᨵ|øHù-ᑁStaticNestedClassú¹ᙠûtÐḄt zü/}ᨵýOᙠ"#×ᵨÐḄ$ᨵ àþO-E,GHᡂpublicஹprotectedஹÅÆḄஹprivateÇÿ ᡂpublicḄ ᙠ☢ᵨStaticNestedClassḄ“ .ᑁ ”ᙠ☢◤⌕#$ Ḅ%&'()*+,-#$StaticNestedClass,&Ꮇ0Inner1ᙠOuter2ḄStaticNestedClass,34*+5ᵨ678#$Inner9Outer.Innerinner=newOuter.Inner();ᵫ;staticNestedClass<=; Ḅ%&'(ᡠ+staticNestedClass?@ ḄAstaticᡂᕒCDEᙠ 2?@StaticNestedClassF*+,-5ᵨStaticNestedClassḄH◤⌕IJ ḄHKᙠStaticNestedClass2L*+,-ᵨ ḄstaticḄᡂᕒCD◤⌕IJ ḄHᙠ☟OP2Ḅᑁ L1StaticNestedClass,FᙠR☢IstaticᐵTH☟OP2ḄStaticNestedClassUOP2Ḅᑁ ḄVᵨOWXYZ[◀K*+,-?@ 2ḄstaticḄᡂᕒCD]*+?@☟OP2Ḅ^ CD_1`^ CDRabIfinalc⛲eᜓg9✌ᐜ᪷klḄᓺ(nol'ᑁ ḄpqO☢Ḅᱯs9&ᙠtᙢO*+*+?@ ḄᡂᕒCD☟ᡂᕒ1ᜧḄᱯsᯠxynz{|⁚O☢Ḅ~& OWḄ7P☟ᑁ +ᑁ
4027ஹᑁ *+ᵨ[ḄᒹḄᡂᕒᔩᨵᨵ4▲ᑴᐰ*+1☟ᑁ 3ᨵ4▲ᑴl☟ᝅEᑁ Ḅz ᱯ&3ᙠ 6*+?@ ḄᡂᕒCD?@ 2Ḅ☟ᡂᕒ&6☢Ḅṹ9
41classOuterstaticintx;staticclassInnervoidtest()syso(x);
42⚪FL⌕⁐¡᥅£@ὅḄ¥¦§ᯠ¨©ª«lnḄ1☟ᑁ ?@ Ḅᡂᕒ_lzJᩭ)⚔®¯⌕ᐜ°Ḽ¨©²¨©³´ᯠxynᱯµ²¨©ᔛ·28ஹAnonymousInnerClass¸ᑁ ¹1ᔲ*+extends¸»¼¹ᐸ[1ᔲ*+implements¸%¾¹interface¸-¿¹?*+»¼ᐸÁᡈ%¾ᐸÁ-¿Ã1*+1ab29ஹsuper.getClassOPÄᵨ6☢ÅÆḄÇoÈ1ÉÊ
43importjava.util.Date;publicclassTestextendsDate{publicstaticvoidmain(String[]args)newTest().test();
44publicvoidtest(){Systern.out.printIn(super.getClass().getName());)XÌÈ1TestÍ;ᾯÏញÑÒḄ⚪ÓᙠztqqÔᨵtÕÖׯ@Øt@⚪ᡃÚÛÜᨵÝ)ẆßKz6àᑮâᜩ]äl☢ᑮKååᙠtestOP2,-ÄᵨgetClass.getNameOPæçḄ1Testᵫ;getClassᙠObject2ᡂKfinal,è⌚ê`OPᡠ+ᙠ
45testOP2ÄᵨgetClass().getName()OPᐸ%)1ᙠÄᵨë᱄»¼ḄgetClassOPíᦔ;Äᵨsuper.getClass().getName()OPᡠ+super.getClass().getName()OPæçḄLV`1TestàÛᑮ᱄ḄV`ᵨ6ṹ9getClass().getSuperClass().getName();30ஹString1ᨬðñḄᦪkᔩðñᦪkᒹóbyteஹintஹcharஹlongஹfloatஹdoubleஹbooleanshort0java.lang.String1finalḄ&ôõ*+»¼tஹcᦋtK£÷ᦔ᳛⁚ḕúûᡃüV`ᵨStringBuffer31ஹStrings=,,Hello,,;s=s+nworld!”;ýṹýxÿ ḄStringḄᑁᑮᨵᨵStringᡂ(immutable)ᡠḄᡠᨵ ᙠ !ṹs#ᐜᢣᔣ'(Stringᑁ “Hello”ᯠ+ᡃ-s./+1234sᡠᢣᔣḄ3( ᔲ67ᦋᕖ:ᫀ ᨵ <sᢣᔣ#ᩭ3(>ᢣᔣ?'(Stringᑁ"Hellworld!”,#ᩭ3(@AᙠBᑁACD s (EᵨGHᢣᔣIJK☢ḄMNᡃ-O᧕QR?'(STVWXYZ[./ᔜ]ᔜ᪵Ḅ_ᦋᡈὅM⚜cḄ_ᦋ34dᵨStringᩭ!⊤YZ[ḄfgEhOᜧḄᑁAj├StringlmC+nHᦋᡠBo'(pḄYZ[ ◤⌕'(Stringᩭ⊤s <tuὃ⇋dᵨStringBufferᐕy_ᦋ> o(pḄYZ[ ⌕7ᡂ'(zḄ{| }]Ḅ~ᣚᓝᑖ᧕p<ᡃ-@⍝V⌕dᵨᑁpḄYZ[o new'(Stringᡃ-⌕ᙠ᪀⌼ᘤ'(sḄStringEᵨG./ ᓄ
46t ᪵publicclassDemo{privateStrings;...publicDemo{s="InitialValue";}...}>s=newString("InitialValue");+ὅo gᵨ᪀⌼ᘤ7ᡂzឋn|ᑁAj├ᜧ{|ᨵStringᦋᡠBᑁpḄYZ[D⌕'(Stringᩭ⊤sMᵨK☢Ḅ᪀⌼ᘤl(¡-ḄString¢£ឋs ᢣᔣp'(K☢ḄST@¤B ᪵'(¥¦BYZ[XGVᑁpJava§-!⊤p'(String>ᵨᐵ©Ynewᵨ᪀⌼ᘤª gl'(zḄ«Tᑁ ᔲp¬B4⌕Stringᡂ Ḅᵨ⌶¯°Ḅᐸ¦DString,OJava᪗³´Ḅ Ḅᙠj6'(µ¶Ḅ<ᡃ-ᨵ<◤⌕ᩭ¸⌴'ºᐵḄ ☢ᔣ»¼Ḅ½¾ᨵ'¿ÀÁÂḄ DÃḄᡠÄÅ{6ÆÇgᨵÈÉÇ⚪ᯠᨵ'¿ËÁÂo(pḄÌ ⌕'(ᩭ!⊤ng⌼ᡂឋnKḄÇ⚪ᡠJava᪗³´@ÎÏ'(᱐ÑᓽStringBuffer032ஹ ᔲÔÕStringString finalᦑÔÕ33ஹStrings=newStringC'xyz");×!!lÙ(StringObject?ÚὅCÛᨵ4ÜÝ}(ᡈ'("xyz”t'( (ßᙠYZ[XGàáÜXG“xyz”âR¾ãä àáÜḄ3'(NewStringoᑏ'äl'(zḄ'æ3(XG“xyz”ḄᑁᩭlR'(zStringVçᵨJxyz" æ!⊤gl“xyz”èéêëìàáÜí34ஹStringîStringBufferḄÜÝ
47JAVAïðÎÏ}(:StringîStringBuffer,-òAî12YZ[ᓽᒹô(YZḄYZᦪö (StringÎÏᦪᦋḄYZ[> (StringBufferÎÏḄYZ[./_ᦋ÷⍝YZᦪö⌕ᦋḄ<÷dᵨStringBufferoᐺ¢ᙢ÷dᵨStringBuffersᩭú᪀⌼YZᦪö?String¦¾equalsüýnewString("abc").equals(newString("abc”)ḄSVtrue,>StringBufferᨵ¦¾equalsüýᡠnewStringBuffer(tcabc,,).equals(newStringBuffer("abc”)ḄSVfalseoëḼ⌕ÿ ᐹḄᩭᡃ⌕1ᑮ100Ḅᡠᨵᦪᩭᡂ
48StringBuffersbf=newStringBuffer();for(inti=0;i49Stringstr=newString();for(inti=0;i<100;i++)str=str+i;)ᙠ/0ὅ234567Ḅ8ᦪ9ᡂ10000,ᯠ;ᵨendTime-beginTimeᩭ=>0ὅ@Ḅ4ABCᨬ;E⌕//StringBuilderFStringBufferḄ23String⌚H(equalsIJKhashCodeIJ+StringBufferLᨵ⌚HequalsIJKhashCodeIJ,ᡠNOStringBuffer)*PQRJavaSᔠUV4WXYZ⚪35ஹ^ _⌹aᑖᒘḄdeᣚᡂ ᦪghijjdkapi,ᡃ!kᑏXᩭmᡃnNᡃḄopq1.ᵨsᑣ⊤vw, ṹᜧᭆ$qString[]result=orgStr.split(“J);2.ᵨStingTokenizer, ṹ$qStringTokenizertokener=StringTokenizer(orgStr,'',");
50String[]result=newString[tokener.countTokens()];Inti=0;while(tokener.hasNext(){result[i++]=toker.nextToken();}36ஹᦪᨵLᨵlengthzIJgStringᨵLᨵlengthzIJgᦪLᨵlengthzIJᨵlengthḄ{ឋStringᨵᨵ lengthzIJ37ஹ,☢zᩩ~ ᐳ&'()*qStrings=nan+,,b,,+nc,,+,,dn;q), ṹqStringsi="a";Strings2=sl+"b";Strings3="a"+"b";System.out.println(s2=="ab");
51System.out.println(s3=="ab"); ᩩ~ᡭᓺḄh$false,ᩩ~ᡭᓺḄh$true,zjavacnN)dḄ⊤vwR@ᓄi⌕ᑮ@R@Jᜐᳮ+ᙠ4ᣵᐸVḄaOᐸᡂ zḄh⚪¡VḄ @ ṹ¢ᘤᙠ4ᓄ;¤¥¦( “abed”ḄdᡠN☢Ḅ ṹ5¨%&'( String)*ᑏ,0@ ṹStrings="a"+"b"+"c"+"d";System.out.println(s=="abed");ᨬ©ᡭᓺḄh5¨$true38ஹtry{}ªᨵ return~«¬®ᙠztry;Ḅfinally{}ªḄcodeWiW¢@¯¬4¢@ᙠreturn±E;g²³´Ḅᫀᙠreturn¶±·¸¹ºᙢᡃḄᫀᙠreturnVA@¼½,☢¾¿ ṹḄ@hq
52
53publicclassTest{/*ਭ@paramargsadd.byzxx,Dec92008f
54*/publicstaticvoidmain(String[]args)//TODOAuto-generatedmethodstubSystem.out.printin(newTest().test());;}staticinttest()intx1Â
55tryreturnx;finally++x;}
56@h1@h1,$¯¬ᕖgÄÅᦪÆᵨÅᦪÇÈᑮhḄɾÊ=ÄÅᦪËᜓ ÍΤÅᦪ⌕ÏÐh4ᐜhÒᙠΪᯠ;ÓO¾¿ÔÕÏÐᑮÄÅᦪᡠÖÏÐ×Åᦪᡃi@(´ÄÅᦪØÙ@ᔳzL¯¬hnÛhᙠzܶ±ÒRΪḄ39ஹ,☢Ḅ¾¿ ṹÝXḄhg
57
58publicclasssmallTpublicstaticvoidmain(Stringargs[])smallTtnewsmallT();
59intbt.get();System.out.printin(b);publicintget()tryreturn1
60}finallyreturn2;)))ÏÐḄh2ᡃnNÞÉ,☢ ¾¿ᩭßàᡃáâzᫀã,☢Ḅ@hVnNäYtryVḄreturn~ÆᵨḄÅ
61ᦪᐜfinallyVÆᵨḄÅᦪ@²×return~ᐜ@finally~;@ᡠNÏÐḄh2ReturnÇiåÅᦪæÏÐ+return~@;OÏÐhÒçRÅᦪ᪘Vé4ÅᦪÇiæÏÐê⌕@finally~;ëìsíîÏÐᙠ/áᫀ4nNᵨ,☢Ḅ¾¿ᩭßàᑖ᪆q
62
63publicclassTest
64/***@paramargsaddbyzxx,Dec9,2008*/publicstaticvoidmain(String[]args)//TODOAuto-generatedmethodstubSystem.out.printin(newTest().test());;
65inttest()tryreturnfund();finally
66returnfunc2();intfund()System.out.printin("fund");return1;
67intfunc2()System.out.printin(,,func2");return2;})-------@h------------fundfunc22ñqfinallyVḄ ṹ=returnKbreak~;@
6840ஹfinal,finally,finalizeḄ23finalᵨò{ឋIJKUᑖ3⊤ó{ឋinô,IJin⌚HUinØõᑁ÷U⌕øZù÷ôù÷ôú¥¦ᡂfinalUû, _ ṹ……finallyCᜐᳮ~᪀Ḅ ÷ᑖ⊤óþ@finalizeObjectUḄ IJᙠᚗ ᦈᘤḄᵨᦈḄ⌚ᚗ ᦈḄᐸ ᦈ ᐵ"ᦻ$%JVM'()*ᵨ41ஹ,-./01-.ᨵ3-45-.⊤789,:8;<=>Ḅ?@.A,-.⊤7CDEḄF.GH;<⍗ᑮḄ-.K0L.M,┯OJavaPQᘤ⌕STUVWX=o⚪Kr⊤789,@.'YZḄjk43ஹJava;Ḅ-.ᜐᳮEᑴḄᓫᳮ`ᵨ-.Kᢣjava89,?PQᡠYZḄ?@.jkᡈ┯O/>Z;Ḅ$g>Z;Ḅ$
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70z⍝⚪þ⌕ὃûḄÿṹᑮᜧᑏṹḄᑮ☢Ḅ ⌕!"#5$ᐹ&Ḅ '⌕()*#+,- ./0$ 12.34ᯠ6 7ᐰᵨᐸ;ᦻ=>ᩭᑏ-ᨬAḄBᙠᑏ #D1ᵨEᦻᔳᨵHIJᨵKLᡠN 1-PQ-RuntimeExceptionḄRSᙠjdkdocETRuntimeExceptionS12.ᑮᐸᡠᨵḄRSᑡ⊤W1-ᑮ3ᡠᨵḄ ᡃIZᨵᓺ\Ḅ ᨵ]NullPointerExceptionஹArraylndexOutOfBoundsExceptionஹClassCastException45ஹJAVA_`abc ᜐᳮᐵgh]throws,throw,try,catch,finallyᑖj⊤+,klmᙠtryᙽE2.o# ᔩm46ஹjavaEᨵ0qr2.Bs$tumᵨ+,ᐵghv⛲xyrmstopzsuspend()r{a |~ᵨm
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72java5.ᨵq:q:
73newThread(){}.start();6⊤ᵨThreadRS\ḄrunrnewThread{}⊤$ThreadḄ=RSḄB\RSrunrḄṹ]newThread(){publicvoidrun(){)}.start();q:
74newThread(newRunnable(){}).start();6⊤ ᵨThread\ḄRunnable\ḄrunrnewRunnable(){)⊤——$RunnableḄ=RSḄB\runnableḄRSrunrḄṹ]newThread(newRunnable(){publicvoidrun(){))).start();
75java5ᨵtutuḄ:ExecutorServicepool=Executors.newFixedThreadPool(3)for(inti=0;i76Executors.newSingleThreadExecutor().execute(newRunable(){publicvoidrun(){}});ᨵqBsrᑖj~ᵨnewThreadznewThread(runnable)qᵨthreadḄrunrᡠ.ᡃQ~ᵨThreadRSᓽnewSubThread()oqᵨrunnableḄrunrᨵqBsrᑖj-¡¢ThreadS£BsRunnable¤ᵨsynchronizedᐵghv⛲xyr¥~ᵨstop(),-¦{P §ᐰP¨©◀ᵫtu¬Ḅᡠᨵ┝ ¯°\ᜐ±q ²³´D,ᐸ¶tu(ᙠDq´·TzvᦋPQ¹º»·T# ¼Ḅ½⚪ᡠᙠsuspendr¿᧕ÁÂÃ┝ᵨsuspendḄÄÆ᪗tu¨Èᩭ'ᓾÊᯠᢝᨵᙠ6̬ÍḄ┝ ÎÄᐸ¶Ïatu (н┝ ḄÑÒ◀ÓÔ"ᢞ×"ḄtuឮÙÚcÏatuᩭ*PQÛឮÙÆ᪗tuxÄÜÝÞ~ᵨÏa$┝ ḄÑÒ1¨⌼ᡂÃ┝ᡠ. ~ᵨsuspend¯ᙠáâḄThreadSEãᐭ$᪗åᢣ#tuçè-ᢞ×é᪗åᢣ#tuᢞ×êᵨwaitëᐸ
77bᐭìí´é᪗åᢣ#tu4ឮÙᑣᵨ$notifyïðñètu47ஹsleep zwait ᨵ+,òjmóôḄ"ᫀ]sleep-tuSóThread Ḅrö÷ÎtuᨚÈcᢣ Äúûcü¨ûᐸ¶tu'-ýþ´ÿᯠᢝᑮឮᵨsleep┝waitObjectḄᵨwait ┝!ᐭ#$Ḅ#$┝%&'ᨵ┐*+notify,ᡈnotifyAll .!ᐭ┝%&/ᜓ12┝!ᐭ3457sleep89ᙠ4Ḅ <=+cpu,cpu>4ᐸ@ ᙠsleepᢣ%ḄBCcpu.DᑮEF GHIJK4MNO !ᐭPQR┝sleepS┝ᓽUNO Uᵨsleep=+Pcpu,Wᐸ@XQR┝ᢱZPḄ [\2ᑮ4waitᢣᙠ]F^_!ᐭPQR┝Ḅ ᑁ=aᨚ=+QR┝cdᐸ@9ᙠ#$┝Ḅ ec2ᑮQR┝S34'ᨵᐸ@ ᵨPnotify,notifyS┝'fgᵨCwaitḄ ec>hi12┝ḄjkPWlG2ᑮ┝mn┝oᙠpqrspqotMnotify☢Ḅvṹoᨵxy◤⌕E|vṹ4}.┝ecᙠnotfiy~]F#$]|vṹᦔM7ᵨwaitḄ 8◀wait5 ec2ᑮ┝HIᔣK34waitḄ]%⌕ᔠvṹᩭ.2a
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84packagecom.huawei.interview;publicclassMultiThread{/***Qparamargs
85*/publicstaticvoidmain(String[]args){//TODOAuto-generatedmethodstubnewThread(newThreadl()).start();try(Thread.sleep(10);}catch(InterruptedExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();
86newThread(newThread2()).start();privatestaticclassThreadlimplementsRunnable
87@Overridepublicvoidrun(){//TODOAuto-generatedmethodstub//ᵫ)*+ḄThread,-.☢Ḅ/hread2ᑁ#run ⌕ᵨ1234567ᘤ,ᡃ:*+;<ᵨthis,ᙠThread2+☢Ḅthis-*=ThreadlḄthis;12=34ᡃ:ᵨMultiThread.class*=>⁚ṹ34,ABCDE+Fᵨ*=GHI,ᢣᔣḄL12=34synchronized(MultiThread.class){System.out.printin("enterthreadl...");
88System.out.printin("threadliswaiting");try(//MN┝ᨵQR S,T2R SUVWᯠYZ67ᘤḄ\,]^YZ_synchronizedᐵb>cdḄeṹ\,f]R S^ᙠsynchronizedᐵb>cdḄeṹᑁ#gᵨ67ᘤ34Ḅwait *+,hᵨwait MN┝MultiThread.class.wait();}catch(InterruptedExceptione){//TODOAuto-generatedcatchblock
89e.printStackTrace();Systern.out.printIn("threadlisgoingon...");Systern.out.printin("threadlisbeingover1");}
90}privatestaticclassThread2implementsRunnable@Overridepublicvoidrun(){//TODOAuto-generatedmethodstub
91synchronized(MultiThread.class){System.out.printin("enterthread2...");System.out.printin("thread2notifyotherthreadcanreleasewaitstatus..");//ᵫ)notify i;MN┝,ᓽhthread2gᵨ.☢Ḅsleep kl_10mn,othreadlpᯠ;qs,thread2tᨵMN┝,ᡠvThreadlw;ᑮ┝
92MultiThread.class.notify();Systern.out.printin(*'thread2issleepingtenmillisecondtry(Thread.sleep(10);}catch(InterruptedExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}
93System.out.printin("thread2isgoingon...");System.out.printin("thread2isbeingover!");
9448ஹQRRᨵQᙠKᑖpUᵨ@Mᦪ¡¢ᙠ Bᐳ¤9ᙠᑏḄᦪ¡ce¦X§]F ¨ᑮᡈὅ9ᙠ¨Ḅᦪ¡e¦^_X§]F ᑏCPªE|ᦪ¡8ᐳ¤ᦪ¡«¬!4QR®N¯ᵨ ᙠGᵨP]F◤⌕°±x²Bᩭ4ḄS³´µ= #$Ḅ¶D8¯·UᵨR¸ ᙠxyK¹ᵨR⌶»JJ¼ᨵᦔ᳛49.K☢¿FQRᔩ,a*7
95classTestsynchronizedstaticvoidsayHello3()
96synchronizedvoidgetX(){}50ஹy ᨵÁÂÃÄQRᨵÁÂÃÄy ᨵ¿ÂÃÄᑖpHÅThreadiÃÄRunnableÆÇQRḄÃÄ☢ᨵ¿Âᑖpsynchronized,waitinotifywait:U]F ᜐ#$5S³ᡠᢝᨵḄḄlockosleep:U]F9ᙠ34Ḅ ᜐṑḨ5]F☟ᵨ⌕ᣓᣍInterruptedExceptionÐnotify:ᖔ⏨]Fᜐ#$5Ḅ ÓÔḄᙠᵨḄS¦ÖᑗḄᖔ⏨Ø]F#$5Ḅ ÙᵫJVMÖ%ᖔ⏨ÛF Ù³ᢥÝᐜßAUnotity():ᖔ⏨ᡠᨵᜐᐭ#$5Ḅ ÓÔSàᡠᨵᖔ⏨ ]FḄ┝Ù=ájk
