锘??xml version="1.0" encoding="utf-8" standalone="yes"?>久久亚洲AV永久无码精品,jzzijzzij在线观看亚洲熟妇,亚洲avav天堂av在线网毛片http://www.tkk7.com/adapterofcoms/category/43830.htmlzh-cnSat, 06 Mar 2010 02:26:48 GMTSat, 06 Mar 2010 02:26:48 GMT60Singleton璁捐妯″紡,闇瑕佸弻閲嶆鏌ュ悧?http://www.tkk7.com/adapterofcoms/archive/2010/03/03/314440.htmladapterofcomsadapterofcomsWed, 03 Mar 2010 13:13:00 GMThttp://www.tkk7.com/adapterofcoms/archive/2010/03/03/314440.htmlhttp://www.tkk7.com/adapterofcoms/comments/314440.htmlhttp://www.tkk7.com/adapterofcoms/archive/2010/03/03/314440.html#Feedback0http://www.tkk7.com/adapterofcoms/comments/commentRss/314440.htmlhttp://www.tkk7.com/adapterofcoms/services/trackbacks/314440.htmlSingleton璁捐妯″紡,鍙岄噸媯(gè)鏌ユ牱鍒楀涓?

  • public class Singleton   
  • {   
  •     private static final Singleton singleton = null;   
  •   
  •     private Singleton()   
  •     {   
  •     }   
  •     public static Singleton getInstance()   
  •     {   
  •         if (singleton== null)   
  •         {   
  •             synchronized (Singleton.class)   
  •             {   
  •                 if (singleton== null)   
  •                 {   
  •                     singleton= new Singleton();   
  •                 }   
  •             }   
  •         }   
  •         return singleton;   
  •     }   
  • }  
  •  

    綆鍗曟牱鍒?:

    public class Singleton { 
     private final static Singleton instance=new Singleton();
     private Singleton(){}
     public static Singleton getInstance(){ 
      return instance; 
     }
    }

     

    鍙岄噸媯(gè)鏌ュ緢閫氱敤,浣嗘槸瀹冨紩浠ヤ負(fù)鍌茬殑鏄ц兘鐨勪紭鍖?鍦╣etInstance琚緢澶氬緢澶氭璋冪敤鐨勬儏鍐典笅).

    鍛靛懙,鎴戝氨鐩存帴璇寸粨璁轟簡(jiǎn):鍦ㄦц兘涓婃渶浼樼殑鏄?綆鍗曟牱鍒? [褰撶劧涔熸槸鍦╣etInstance琚緢澶氬緢澶氭璋冪敤鐨勬儏鍐典笅].

    綆鍗曟牱鍒?鏄?strong>闈炴儼鎬у姞杞?/strong>,鎵浠ユ湁浜鴻鍙嶉┏璇?濡傛灉鎴戜笉鐢ㄥ埌Singleton 鐨勫疄渚嬪矀涓嶆槸鐧藉崰浜?jiǎn)鍐呭?

    鎵浠ヤ綘閫夋嫨 綆鍗曟牱鍒? 榪樻槸 鍙岄噸媯(gè)鏌?/strong> 鏄鏍規(guī)嵁浣犵殑瀹為檯鎯呭喌鐨?濡傛灉鍦ㄧ▼搴忎腑瀵瑰崟鍒楃被寮曠敤鐨勯鐜囨槸寰堥珮鐨?閭d箞搴旇閫夋嫨 綆鍗曟牱鍒?,鍙嶄箣 鍙岄噸媯(gè)鏌?

     

     

     



    ]]>
    浣犺兘閫氳繃涓嬮潰鐨?閬搄ava闈㈣瘯棰樺悧?http://www.tkk7.com/adapterofcoms/archive/2010/03/03/314393.htmladapterofcomsadapterofcomsWed, 03 Mar 2010 03:28:00 GMThttp://www.tkk7.com/adapterofcoms/archive/2010/03/03/314393.htmlhttp://www.tkk7.com/adapterofcoms/comments/314393.htmlhttp://www.tkk7.com/adapterofcoms/archive/2010/03/03/314393.html#Feedback0http://www.tkk7.com/adapterofcoms/comments/commentRss/314393.htmlhttp://www.tkk7.com/adapterofcoms/services/trackbacks/314393.html1.java static inner class 鍜?non-static inner class鐨勫尯鍒?  

    2.璇峰啓鍑轟竴涓猻ingleton妯″紡鐨刢lass.

    浣犲鏋滃啓鍑轟笅闈㈢殑2縐嶆牱寮?鎴戜細(xì)闂綘:璇烽棶浣犲浣曞湪鍚屼竴涓猨vm涓茍涓斿湪鍚屼竴涓猚lassLoader涓緱鍒板畠鐨勫涓疄渚?(璇蜂笉瑕佸鎬?

    鏍峰垪1:

    public class Singleton {  
     private final static Singleton instance=new Singleton();
     private Singleton(){} 
     public static Singleton newInstance(){  
      return instance;  
     } 
    }

    鏍峰垪2:

    public class Singleton { 
     private static volatile int instanceCounter=0; 
     private Singleton(){
      if(instanceCounter>0)
       throw new RuntimeException("can't create multi instances!");
      instanceCounter++;
     }
     
     private final static Singleton instance=new Singleton();
     public static Singleton newInstance(){  
      return instance;  
     }

    3.java 鐨別xception 鍒哻hecked,unchecked.鍍廟untimeException,Error閮戒笉鐢ㄦ樉寮弔ry-catch,鐩存帴鍙互throw,

    浣嗘槸涓鑸殑exception鏄繀欏籧atch鐨?

    throw new Exception("..."),濡傛灉榪欏彞涓嶅湪try-catch浣撳唴,鎴栬呮柟娉曠殑澹版槑娌℃湁throws,閭d箞緙栬瘧鏄氫笉榪囩殑.

    ok,璇風(fēng)湅濡備笅鐨勪唬鐮?

    public class TestClass { 
     
     public void  testMethod()/*榪欓噷娌℃湁throws 鍝?*/{  

              ......
               throw new Exception("force throw the exception...");
              ......
     }
    }

    寰堟槑鏄句笂闈㈢殑鏂規(guī)硶濡傛灉榪欐牱鐨勮瘽鏄氫笉榪囩紪璇戠殑,浣嗘槸濡傛灉闈炲緱瑕佷綘鍦╰estMethod浣撲腑鍦ㄨ繍琛屾椂throw涓涓緢涓鑸殑Exception,璇烽棶浣犳湁鍔炴硶鍚? 

    榪?閬撻鍙笉鏄痵un鍑虹殑鑰冮鍝?涓嶄俊浣犳悳鎼?.....



    ]]>
    java nio鍦ㄥ綰跨▼鐜涓嬬殑鎭舵ⅵ涔嬬粓緇?/title><link>http://www.tkk7.com/adapterofcoms/archive/2010/03/02/314242.html</link><dc:creator>adapterofcoms</dc:creator><author>adapterofcoms</author><pubDate>Tue, 02 Mar 2010 02:12:00 GMT</pubDate><guid>http://www.tkk7.com/adapterofcoms/archive/2010/03/02/314242.html</guid><wfw:comment>http://www.tkk7.com/adapterofcoms/comments/314242.html</wfw:comment><comments>http://www.tkk7.com/adapterofcoms/archive/2010/03/02/314242.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/adapterofcoms/comments/commentRss/314242.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/adapterofcoms/services/trackbacks/314242.html</trackback:ping><description><![CDATA[<p>鏈変漢璇磈ava nio鍦ㄥ綰跨▼鐜涓嬬紪紼嬬畝鐩村氨鏄釜鎭舵ⅵ,鍏跺疄浣犲鏋滆兘鎶婃彙浣廽ava nio API鐨勮棰?浣犲氨鍙互灝嗕箣椹鵑┉. </p> <p>0. 涓涓?channal 瀵瑰簲涓涓猄electionKey in the same selector.<br /> e.g: <br /> SelectionKey sk=sc.register(selector, SelectionKey.OP_READ, handler);<br /> sk==sc.register(selector, SelectionKey.OP_WRITE, handler) true?<br /> selector.select() 姣忔榪斿洖鐨勫鍚屼竴channal鐨剆k鏄惁鐩稿悓? </p> <p>1.channel.register(...) may <strong>block</strong> if invoked concurrently with another registration[another.register(...)] or selection operation[selector.select(...)] involving *****<strong>the same selector</strong>*****.<br /> 榪欎釜鏄痳egister鏂規(guī)硶jdk src涓婄殑鍘熸枃,<br /> e.g:<br /> 濡傛灉涓涓猻election thread宸茬粡鍦╯elect鏂規(guī)硶涓婄瓑寰卛ng,閭d箞榪欎釜鏃跺欏鏋滄湁鍙︿竴鏉$嚎紼嬭皟鐢╟hannal.register鏂規(guī)硶鐨勮瘽,閭d箞瀹冨皢琚玝locking.<br /> <br /> 2.selectionKey.cancel() : The key will be <strong>removed</strong> from all of the selector's key sets <strong>during</strong> *****<strong>the next selection operation[selector.select(...)]</strong>*****.<br /> may <strong>block</strong> briefly if invoked concurrently with a cancellation[cancel()] or selection operation[select(...)] involving ***<strong>the same selector</strong>***.<br /> 榪欎釜涔熸槸cancel鏂規(guī)硶jdk src涓婄殑鍘熸枃,<br /> e.g:<br /> 浣犲厛灝嗕竴涓猻electionKey.cancel(),鐒跺悗闅忓嵆鍐峜hannel.register to <strong>the same selector</strong>,<br /> 鍦╟ancel鍜宺egister涔嬮棿,濡傛灉娌℃湁綰跨▼(鍖呮嫭褰撳墠綰跨▼)榪涜select鎿嶄綔鐨勮瘽,<br /> 閭d箞 throws java.nio.channels.CancelledKeyException.<br /> 鎵浠?nbsp;cancel-->select-->re-register.  </p> <p>3.if <strong>don't remove</strong> the current selectedKey from selector.selectedKeys()[Set] 灝嗗鑷?selector.select(...) <strong>not</strong> <strong>block</strong> [may be cpu 100%,specially when client cut the current channel(connection)].<br /> e.g:<br /> Iterator<SelectionKey> it=selector.selectedKeys().iterator();<br /> ...for/while it.hasNext()...<br /> it.remove();<strong><------*****must do it. or Keys' Set.clear() finally;</strong> </p> <p>if remove the current selectedKey from selector.selectedKeys()[Set] <strong>but don't</strong> <strong>sk.interestOps(sk.interestOps()& (~sk.readyOps()))</strong>;灝嗗鑷?selector.select(...) <strong>not block</strong> [select() not block several times, or excepted exception] </p> <p>4.op_write should not be registered to the selector.   [may be cpu100%] </p> <p>5. if involving  wakeup() <strong>before</strong> select() [wakeup called several times >=1],the <strong>next</strong> select() <strong>not block</strong> [not block just once]. </p> <p>灝界浠ュ墠鏈変簺浜哄垎鏋愪簡(jiǎn)nio鐨剋akeup鎬ц兘鍙?qiáng)not block in linux鐨刡ug,浣嗘槸java nio渚濈劧鏄珮鏁堢殑,閭d簺c/c++鐨勭墰浜轟滑鍘葷湅鐪媕re/bin鐩綍涓嬬殑nio.dll/nio.so鍚?java nio鏄熀浜巗elect妯″瀷(榪欎釜鏄痗/c++涓父鐢ㄧ綉緇滅紪紼嬫ā鍨嬩箣涓)鐨?</p> <p>鍩轟簬java nio鐨勬湇鍔″櫒:mina,girzzly[glassfish],jetty(鍩轟簬girzzly),tomcat6[鍙互閰嶇疆Http11NioProtocol]...</p> <p>鍏朵腑浠庢湰浜哄girzzly,tomcat6鐨勬簮鐮佸垎鏋愭潵鐪?瀹冧滑閮借繕娌℃湁鐪熸鍙戞尌鍑簄io寮傛澶勭悊璇鋒眰鐨勪紭鐐?瀹冧滑鐨勮鍐欒繕閮芥槸blocking鐨勮櫧鐒朵嬌鐢ㄤ簡(jiǎn)selectorPool,姝ゅtomcat6瑕佸墺紱誨嚭socket閫氫俊榪樿鑺辮垂涓瀹氱殑鍔熷か.鑰?strong>mina</strong>鍗存槸<strong>鍚?font class="" style="font-family: " color="#ff0000">涓?/font>絎﹀叾瀹?/strong>,榪樻湁<strong>bug</strong>鍝?</p> <img src ="http://www.tkk7.com/adapterofcoms/aggbug/314242.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/adapterofcoms/" target="_blank">adapterofcoms</a> 2010-03-02 10:12 <a href="http://www.tkk7.com/adapterofcoms/archive/2010/03/02/314242.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>java蹇?榪樻槸 c蹇玔c++蹇玗,浼兼槸鑰岄潪鐨勮皥http://www.tkk7.com/adapterofcoms/archive/2010/02/01/311552.htmladapterofcomsadapterofcomsMon, 01 Feb 2010 12:45:00 GMThttp://www.tkk7.com/adapterofcoms/archive/2010/02/01/311552.htmlhttp://www.tkk7.com/adapterofcoms/comments/311552.htmlhttp://www.tkk7.com/adapterofcoms/archive/2010/02/01/311552.html#Feedback0http://www.tkk7.com/adapterofcoms/comments/commentRss/311552.htmlhttp://www.tkk7.com/adapterofcoms/services/trackbacks/311552.html     棣栧厛璇存槑涓涓嬭繖涓?#8221;蹇?#8221;鐨勫惈涔?鎴戞兂浠ュ墠閭d簺璁ㄨ榪欎釜璇濋鐨勪漢褰撶劧璁や負(fù)榪欎釜蹇槸鎸囩▼搴忕殑榪愯閫熷害,鑷充簬”杞歡寮鍙戦熷害”鎭愭曟兂涔熸病鎯?鎴栬璁や負(fù)杞歡寮鍙戦熷害鍜岃繖涓瘽棰樻壇涓嶄笂涓鐐瑰叧緋?閭d箞榪欎釜闂鍦ㄧ綉涓婃悳鎼?鎼滅殑涓澶у爢,閭d簺c/c++闃佃惀鐨勫垪浜?jiǎn)寰堝渚嬪瓙鏉ヨ鏄巆/c++蹇? java闃佃惀鐨勪篃鏄姝?榪樻彁渚涗竴浜涙満鏋勭殑鏁版嵁鏉ヨ鏄巎ava騫朵笉鎱?鍙槸浠嶇劧娌℃湁璁╁ぇ瀹墮兘淇℃湇鐨勭悊鐢辨垨鑰呯粨鏋?浠庤繖浜涜璁轟腑鎴戜滑搴旇寰楀埌涓浜涘惎紺?閭e氨鏄璁鴻繖涓瘽棰樼殑鍓嶆彁鏄璁虹殑浜哄繀欏繪棦瀵筳ava鏈夊緢娣辯殑浜?jiǎn)瑙q樿瀵筩/c++鏈夊緢娣卞叆鐨勬帴瑙?鍚﹀垯閮芥槸鍋忛潰鐨?
        鍙﹀浠庣綉涓婄殑緇撴灉鐪嬪ぇ瀹墮兘璋堝埌浜?jiǎn)涓涓叡鍚岀偣,緙栬瘧鐨勬柟寮忔垨鏈哄埗鏄閫熷害鏄湁褰卞搷鐨?鍦ㄨ繖閲屾彁鍒頒簡(jiǎn)java鐨勫姩鎬佺紪璇戠殑闂JIT(just in time).寰堟槑鏄懼緢澶歝/c++紼嬪簭鍛樹粬涓嶄簡(jiǎn)瑙ava鐨勮繍琛屾満鍒?java鐨勫姩鎬佺紪璇戞槸榪欐牱鎻忚堪鐨?棣栧厛鍐欏畬涓涓猦elloworld.java鐨勬簮鏂囦歡浜ょ敱java compiler寰楀埌helloworld .class鏂囦歡,java.exe浼?xì)鍚姩Java Virtual Machine,騫跺姞杞借繖涓猚lass鏂囦歡閫氳繃JIT緙栬瘧涓烘湰鏈虹殑鏈哄櫒浠g爜.鐗瑰埆瑕佸己璋冪殑鏄繖涓猚lass鏂囦歡,瀹冩槸緙栬瘧鍘熺悊涓墍璋撶殑涓棿浠g爜,瀹冨茍涓嶆槸鐩爣浠g爜.涔熸鍥犱負(fù)鏈変簡(jiǎn)榪欎釜涓棿浠g爜鎵嶄嬌鍔ㄦ佺紪璇戝緱浠ュ疄鐜?鑰宑/c++鏄洿鎺ュ埌浜岃繘鍒剁殑鏈哄櫒浠g爜,涔熶笉闇瑕佷腑闂翠唬鐮佸嬈′竴涓?涓嶈繃涓嶈璁や負(fù)java鐨刢lass鏂囦歡鏄浣欑殑鍝?瀹冪殑鐪熸鐩殑灝辨槸鏁翠釜java璇█鐨勬壙璇簑rite once, run anywhere,涔熷氨鏄涓嶇浣犳槸鍦╳indows os騫沖彴榪樻槸鍦╨inux os騫沖彴,class閮芥槸涓鏍風(fēng)殑,鍙槸Java Virtual Machine鏄笉涓鏍風(fēng)殑,鎵浠ユ湁涓嶅悓os鐗堟湰鐨刯dk(瑕佹兂榪愯java涓鑸彧瑕丣ava Runtime Environments灝卞浜?.鍚岀悊.NET涔熸槸榪欐牱鐨?鎵璋撶殑.net framework灝辨槸鎵挎媴浜?jiǎn)JVM鐨勮鑹?璇村埌榪欐湁蹇呰鎻愰啋涓涓嬪悇浣峧ava涓轟粈涔堣鎼炰釜JVM,.NET闅鵑亾鏄粎浠呬負(fù)浜?jiǎn)鍜宩ava绔炰簤鎵嶆悶.net framework鍚?鍛靛懙,鍘熷洜涔熻寰堝,浣嗕竴瀹氫細(xì)鏈夎蔣浠跺紑鍙戝懆鏈?浜哄姏鎴愭湰,榪欏緢閲嶈鍝?鍛靛懙,蹇鎵埌杞歡寮鍙戦熷害涓婃潵浜?
        鍦ㄨ繖閲屾垜瑕佹彁閱掑悇浣嶇殑鏄叧浜庣紪璇戝櫒鐨?鐢╦ava瀹屽叏鍙互鍐欏嚭涓涓猚/c++緙栬瘧鍣?褰撶劧鏇村彲浠ュ啓鍑轟竴涓猨ava緙栬瘧鍣?涓嶈濂囨摝,濡傛灉浣犳噦緙栬瘧鍘熺悊鐨勮瘽,浣犱竴瀹氫細(xì)璧炲悓鎴戠殑瑙傜偣鐨? 楦″拰楦¤泲鐨勯棶棰?!!
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        涓嬮潰鐨勮繖鍙ヨ瘽鏄憳涔嬪瓱宀╁啓鐨?#8220;Java鏇夸唬C璇█鐨勫彲鑳芥?#8221;,浠栧湪鏂囦腑璇村埌:"Java鍦ㄦ剰璇嗗艦鎬佷笂鏄闈㈠悜浼佷笟搴旂敤杞歡鐨勫紑鍙戯紝鎵浠ョ壒鍒己璋冩灦鏋勶紝寮鴻皟璁捐妯″紡錛屽己璋冩爣鍑嗭紝寮鴻皟瑙勮鐭╃煩錛屽己璋冮珮濮挎侊紝寮鴻皟涓縐嶅崕璐電殑瀹環(huán)姘旇川銆傚湪C 涓紝浣犲悆楗氨鏄悆楗紝鎹ц搗紕楁潵鍠濋厭錛屾斁涓嬬瀛愰獋濞橈紝鐢╁紑鑶瀛愭姄鑲夛紝鎾歌搗琚栧瓙鎶規(guī)補(bǔ)銆傝屽湪Java涓紝浣犵粡甯鎬負(fù)浜?jiǎn)瑕侐q叉煇浠朵簨錛屽厛new涓涓璞★紝鐒跺悗浠ヨ繖涓璞′負(fù)鍙傛暟new鍙︿竴涓璞★紝濡傛榪欒埇閲嶅n閬嶏紝寰楀埌鐪熸闇瑕佺殑瀵硅薄錛屾渶鍚庡氨鏄負(fù)浜?jiǎn)璋冪敤閭d釜瀵硅薄鐨勪竴涓柟娉曪紝灝卞ソ姣斿悆楗椂鐒氶媧楅潰錛屾急鍙e噣鎵嬶紝鎴樻垬鍏㈠參錛屾瘯鎭瘯鏁傚湪C涓紝閬囧埌闂瑕佸儚浜″懡寰掞紝鍍忔祦姘撶増紼嬪挰閲戯紝綆′綘涓変竷浜屽崄涓錛屽啿涓婂幓灝辨槸涓夋澘鏂э紝榪樻曞妶涓嶆浣犱斧鐨勩傚湪Java閲岋紝閬囧埌闂瑕佸儚瀹嬭鍏紝瑕佸紶姒滄獎(jiǎng)鏂囷紝瑕佸悕姝h█欏猴紝瑕佺ぜ浠箣閭︼紝瑕佹妸鏋跺瓙鎷夊紑浜?jiǎn)锛屾妸璋卞効鎽啳懗浜?jiǎn)銆侸ava鐨勫彛鍙鋒槸錛屼笉綆″妶涓嶅妶鐨勬錛屽厛鎶婁綘灝忓瓙鎰熷姩浜?jiǎn)鍐嶈銆傝繖濂楃箒鐞愮殑涓滆タ錛屽浜庡熀紜杞歡寮鍙戞潵璇達(dá)紝鏃笉蹇呰錛屼篃寰堥毦涔?fàn)鎯傞渶瑕佽鏄庣殑鏄紝榪欎笉鏄疛ava璇█鐨勯棶棰橈紝鍏跺疄Java鏈韓涓嶅繀濡傛澶嶆潅銆佸姝ゅ反媧涘厠銆?閽堝榪欏彞璇濇垜鎯寵鐨勬槸鍏朵腑鐨刯ava,java涔嬫墍浠ュ儚浠栬鐨勯偅鏍鋒墍璋撶殑綣佺悙,榪欐伆鎭頒綋鐜頒簡(jiǎn)java榪欑璇█鎵瑕佽〃杈劇殑杞歡宸ョ▼鎬濇兂,java鏄潰鍚戝璞$殑,闈㈠悜瀵硅薄鐨勫師鍒欎箣涓鏄潰鍚戞帴鍙g紪紼?鎵浠ヤ負(fù)浜?jiǎn)瑕侐q叉煇浠朵簨榪樹笉鍍忓瓱宀╀笂闈㈣鐨勯偅鏍?搴旇榪欐牱,鍏堝畾涔変竴涓帴鍙g被,鍐嶅啓涓涓疄鐜扮被,鍐嶅啓涓涓伐鍘傜被鐢ㄦ潵浜х敓鍓嶉潰鐨勬帴鍙g被鐨勫疄渚?鑰屼笉鏄畝鍗曠殑new,浣犳槸涓嶆槸宸茬粡瑙夊緱鏇寸箒浜?鍛靛懙,榪樻湁鎵璋撴洿綣佺殑鍛?鎴戜笉鐢ㄥ伐鍘傜被浜?鎴戠敤浜?jiǎn)涓娊璞$殑宸ュ巶绫?緇欏畠瀹氫箟涓涓駭鐢熻繖涓伐鍘傜被鐨勫疄渚嬬殑闈?rùn)鎬佹柟娉?寰楀埌榪欎釜宸ュ巶綾葷殑瀹炰緥鍐嶇敤瀹冩潵浜х敓鍓嶉潰鐨勬帴鍙g被鐨勫疄渚?涓哄暐榪欎箞鍋氬晩?鍥犱負(fù)java絎﹀悎浜?jiǎn)闈㈠悜浼佷笟搴旂敤枋Y浠剁殑寮鍙戣姹?鍥犱負(fù)浼佷笟闇姹傚彉鍖栧緢蹇?鎵浠ヨ鎺ュ彛,瑕侀氳繃宸ュ巶妯″紡鏉reate瀹?濡傛灉榪欐牱,褰撻渶姹傚彉鍖栧悗鎴戝彧闇淇敼鎴栨坊鍔犳柊鐨勫疄鐜扮被,鍐嶄慨鏀逛竴涓嬪伐鍘傜被鐨刢reate鏂規(guī)硶,鑰屽璇ユ帴鍙e紩鐢ㄧ殑澶栭儴鎴栧灞備唬鐮佸垯涓嶉渶浣滀換浣曟敼鍔?浣犵湅鎺ュ彛寮曠敤,瀹炵幇,鍒涘緩鍚勯儴鍒嗛兘鍒嗙殑娓呮竻妤氭,浠ュ悗浠g爜緇存姢鑷劧瀹規(guī)槗,鍙堣兘閫傚簲闇姹傜殑鍙樺寲.鍙﹀瀵逛簬紼嬪簭鍛樿岃█鍙笉瑕佷互涓哄啓鐨勪唬鐮佸浜?jiǎn)鍝?鎭版伆鐩稿弽,浣犲埄鐢ㄨ璁″伐鍏風(fēng)敾鍑犱釜綾誨浘瀹冨氨浼?xì)甯綘鑷姩鐢熸垚鎺ュ?宸ュ巶綾諱簡(jiǎn),浣犲彧闇鍦↖DE涓啓瀹炵幇綾誨氨ok浜?
        鏈哄櫒鎸囦護(hù)灝變笉璇翠簡(jiǎn),姹囩紪鍒癱,c鍒癱++,c++鍒癹ava,鑴氭湰璇█(lua,php,python,ruby)…浠庡乏鍒板彸紼嬪簭榪愯閫熷害鏄掑噺鐨?鑰岃蔣浠跺紑鍙戦熷害鏄掑鐨?鎬諱箣紼嬪簭鍛樺啓鐨勬洿灝?鏇村揩,浣嗙紪璇戝櫒鍋氱殑鏇村(闄勫姞鎻掑叆鐨勬満鍣ㄦ寚浠や篃浼?xì)鏇村?, 璁捐鍜屽紑鍙戝伐鍏稩DE涔熶細(xì)鍋氱殑鏇村,闄勫姞鐨勬爣鍑嗗簱,鏍囧噯妯℃澘搴撶瓑絳夊皝瑁呯殑鏇村,榪樻湁娑夊強(qiáng)鏂規(guī)柟闈㈤潰鐨勫紑婧愮殑搴撶畝鐩翠笉璁″叾鏁?濂藉儚紼嬪簭鍛樿交鏉句簡(jiǎn),鍏跺疄鏇寸瘡浜?鏁翠釜杞歡涓氬紼嬪簭鍛樼殑瑕佹眰鏇撮珮浜?浣嗗張涓嶄竴瀹?鍥犱負(fù)澶ч噺鐨勬鏋舵彁渚涗簡(jiǎn)寮鍙戠殑渚挎惡鎬?浣垮緱紼嬪簭鍛樺彧闇鍒拌揪浼?xì)搴旂敤鐨勬按邈^,鑰屼笉蹇呯煡鍏舵墍浠ョ劧.鎵浠ュぇ閮ㄥ垎紼嬪簭鍛樺張寤変環(huán)璧鋒潵浜? 杞歡钃濋鍑虹幇浜?浜哄姏鎴愭湰渚垮疁浜?榪欏張鏄蔣浠惰妯″紑鍙戞墍鏈熸湜鐨勭粨鏋?鏃╂湡MDA鐨勬灦鏋勭悊璁鴻呯媯鍚筂DA鐨勪唬鐮佽嚜鍔ㄧ敓鎴愯兘鍔涗細(xì)璁╄蔣浠惰摑棰嗗け涓?
        鍏跺疄鍦ㄨ繖涓?#8221;java蹇繕鏄痗蹇?#8221;璇濋涓渶”鍐?#8221;鐨勬槸java,鍥犱負(fù)鏈夊お澶氱殑浜?璇佹嵁鏉ヨjava鏄浣曠殑姣攃鎱?濡備綍鐨勮楀唴瀛?涔嬫墍浠ヨ繖鏍鋒槸鍥犱負(fù)鏈夊お澶氱殑浜轟笉浜?jiǎn)瑙ava,鐢氳嚦鏈夊お澶氱殑java紼嬪簭鍛橀兘涓嶄簡(jiǎn)瑙ava,浼?xì)鍐檍ava紼嬪簭涓庡java鐨勭悊瑙f槸涓ょ爜浜?
        Eclipse鏄竴涓敤鏉ュ紑鍙慾ava杞歡鐨処DE,鏄疘BM寮婧愮殑,鎮(zhèn)插搥鐨勪簨鎯呮潵浜?鏈夊緢澶歫ava紼嬪簭鍛橀兘涓嶇煡鍒癳clipse鏄敤java鍐欐垚鐨?浠栦滑涓鐪嬪埌eclipse.exe浠栦滑灝辯珛椹惁瀹氫簡(jiǎn)瀹冩槸鐢╦ava鍐欑殑,鎵浠ユ湁榪欑鎯蟲硶鐨勪漢璇蜂綘鎶婃湰鏈虹殑JRE(JDK)鍒犻櫎,鐪嬩綘鐨別clipse榪樿兘鍚﹀惎鍔? 濡傛灉浣犺繕鏈夌枒闂?閭d綘涓瀹氫笉鐭ラ亾JNI(java native interface),JVM鍙槸c/c++鍐欐垚鍝?鍛靛懙,璇村埌榪欐槸涓嶆槸鏈夌偣”鍚屾牴鐢?#8221;鐨勫懗閬?鐜板湪鍗磋”鐩鎬簤浣曞お蹇?#8221;.璇蜂嬌鐢ㄥ弽姹囩紪宸ュ叿鐪嬬湅eclipse.exe閮藉共浜?jiǎn)浜涗粈涔?鏈濂戒篃鐪嬬湅JDK涓殑java.exe鍙堝共浜?jiǎn)浜涗粈涔?鍏跺疄瀹冧滑鐨勫姛鑳藉ぇ鍚屽皬寮?瀹冧滑閮戒細(xì)鍔犺澆jvm.dll/jvm.so(鍦↗RE鐨刡in鐩綍涓?,鍒涘緩JVM瀹炰緥,閫氳繃JNI鍔犺澆main銆class,騫惰皟鐢ㄥ畠鐨刴ain鏂規(guī)硶.浣嗘槸鐤戦棶涔熸潵浜?涓嶇鏄痡ava,c/c++紼嬪簭鍛樺彲鑳介兘涓嶇浉淇clipse榪欑鐢╦ava鍐欑殑紿楀彛紼嬪簭鎬庝箞浼?xì)杩愯鐨勫姝や箣蹇?瀹屽叏鍙互鍜寁b,Delphi,c/c++鍐欑殑紿楀彛紼嬪簭濯茬編.鍥犱負(fù)鍦ㄤ粬浠殑鍗拌薄涓璲ava鐨凣UI紼嬪簭鎱㈢殑瑕佹,鍏跺疄涔熸鍥犱負(fù)java鐨凣UI鎱㈢粰java涓涓嬫墸涓婁簡(jiǎn)榪欓《鎱㈠附瀛?
        鍦ㄨ繖涓笘鐣屼笂JVM(jdk,jre)涓嶆槸sun鍏徃鐨勪笓鏈夌墿,IBM涔熸湁鍝?鍙槸鎴戜滑甯哥敤鐨勬槸sun鎻愪緵鐨?寰堝彲鎯滃畠鏀寔GUI鐨刟wt, swing鍖呭湪鏈鍒濈殑璁捐涓婅繃浜庢娊璞?浣垮緱閫熷害涓嶅敖濡備漢鎰?褰撶劧鐜板湪涓鐩存湁鏀硅.鑰孖BM瀹冩彁渚涗簡(jiǎn)swt鍖呮潵鏀寔java鐨凣UI緙栫▼,eclipse鏄熀浜巗wt鐨?eclipse plugin鎻掍歡緙栫▼鍑虹幇浜?eclipse鐨勬彃浠朵綋緋誨拰鍦℅UI鏂歸潰鐨勭Н绱拰妗嗘灦宸茬粡寰堟垚鐔熶簡(jiǎn),涔熷緢澶?鍙儨鐭ラ亾鐨勪漢寰堝皯,鍘粀ww.eclipse.org鐪嬬湅鍚?Myeclipse涔熸槸鍚岀悊鍝?瀹冧笉浠呴泦鎴愪簡(jiǎn)eclipse,榪樺唴緗簡(jiǎn)jdk.鏈変漢璇磈ava鍋氫笉浜?jiǎn)绯痪l熻蔣浠?鏄晩,鎴戝墠闈㈠氨璇磋繃浜? 姣忕璇█鏈夊畠鎿呴暱鐨勯鍩?
        浣嗘槸鏈夊繀瑕佹彁涓涓嬪祵鍏ュ紡緙栫▼,涓嶈浠ヤ負(fù)宓屽叆寮忚蔣浠墮兘鏄郴緇熻蔣浠?java鍦ㄨ繖涓競(jìng)鍦轟腑鐨勪喚棰濆彲鏄緢楂樼殑鍝?瑕佷笉Microsoft鎬庝箞浼?xì)鐪季U㈠憿.J2ME,J2EE,J2SE鏄痵un閽堝涓嶅悓鐨勫簲鐢ㄩ鍩熸彁鍑虹殑錛撳瑙勮寖鍜孉PI,鍏朵腑J2SE灝辨槸鎸噅dk,J2ME鏄笓闂ㄧ敤浜庡井鍨嬭澶囧紑鍙戠殑,瀹冩槸J2SE鐨勪竴涓緢灝忕殑瀛愰泦,杞婚噺浜?jiǎn)寰堝?J2EE鏄竴濂楅潰鍚戜紒涓氬簲鐢ㄧ殑瑙勮寖,浠2SE涓哄熀紜.鍛靛懙,鐪嬬湅java鐨勫彂灞曞彶鍚?瀹冨ぉ鐢熷氨鏄負(fù)鐢?shù)瑙嗐佹帶鍒剁儰闈㈠寘鏈虹瓑瀹剁敤鐢?shù)鍣?娑堣垂鎬х數(shù)瀛愪駭鍝?鐨勪氦浜掓搷浣滆屽紑鍙戠殑.
        鏈鍚庢彁涓涓婮NI,瀹冩槸java鍙墿灞曡兘鍔涚殑backbone,銆JNI鏄互c/c++鐨勮璦褰㈠紡鎻愪緵鐨勬帴鍙?c/c++閫氳繃瀹冨彲浠ュ拰JVM閫氫俊,涔熷氨鏄彲浠ュ拰java浜や簰浜?jiǎn)鍝?鎴戝墠闈篃璇翠簡(jiǎn)JVM鏈韓灝辨槸鐢╟/c++鍐欐垚鐨?閮藉湪jvm.dll/jvm.so涓?
        鍐嶈java鐨勮楀唴瀛?榪欎釜濡傛灉鍦ㄨ嫑鍒葷殑紜歡鏉′歡涓嬬‘瀹炴槸涓棶棰?涓嶈繃鐜板湪鐨勮秼鍔挎槸紜歡涓鐩村湪闄嶄環(huán),紜歡鐨勬ц兘鍦ㄦ彁鍗?浠ュ墠鐨刢/c++紼嬪簭鍛樺湪紜歡鏉′歡鐨勯檺鍒朵笅涓轟簡(jiǎn)杈懼埌鎬ц兘涓婄殑鏈浼?鍐欑殑浠g爜鏄笉澶彲璇葷殑,榪欐槸涓庤蔣浠跺伐紼嬬悊璁虹浉榪濊儗鐨?鎴戜滑鐜板湪涓轟簡(jiǎn)紼嬪簭浠ュ悗鐨勫彲緇存姢,闄嶄綆緇存姢鎴愭湰,鎴戜滑鍙互鐗虹壊涓瀹氱殑鎬ц兘涔熻緇存姢紼嬪簭鐨勫彲璇繪?涓嶄粎濡傛鎴戜滑涓轟簡(jiǎn)欏圭洰鐨勫紑鍙戝懆鏈熻兘鍦ㄨ瀹氱殑鏃墮棿鍐呰揪鍒版渶澶х殑瀹屾垚搴?鍦ㄩ夋嫨鎶鏈?妗嗘灦鐨勬椂鍊欐垜浠鍏堣冭檻鐨勬槸寮鍙戦熷害,鍏舵鎵嶆槸榪愯閫熷害.鍦ㄦц兘璋冧紭鏂歸潰鎴戜滑鏉ョ湅鐪?lt;<c鍜屾寚閽?gt;>鎬庝箞璇村惂, ”鏀硅繘綆楁硶鑳滀簬浼樺寲浠g爜”page403,榪欓噷鐨勭畻娉曞畬鍏ㄥ彲浠ュ歡灞曚負(fù)璁捐,鎵浠ヤ笉瑕佽糠淇℃煇縐嶈璦鎴栨妧鏈殑蹇參鎬ц兘,濡傛灉璁捐鏈韓灝卞緢緋熺硶,閭d箞鍐嶄紭鐨勬妧鏈?鍐嶅揩鐨勮璦涔熸棤嫻庝簬浜?銆”瀹為檯涓?鍦ㄥぇ澶氭暟鎯呭喌涓?鑻ヨ鎻愰珮緋葷粺鐨勮繍琛屾ц兘,澧炲姞RAM姣旀彁楂楥PU鐨勯熷害鎵浜х敓鐨勬晥鏋滄洿濂?”鎽樹箣<<windows 鏍稿績(jī)緙栫▼>>涓殑絎? 3绔燱indows鐨勫唴瀛樼粨鏋勭殑page305.鎴戞兂java鐨勮璁¤呬笉浼?xì)鍌荤殑杩灅q欎釜閮戒笉鐭ラ亾鍚?
        鎬ц兘浼樺寲鏃犻潪鏄唴瀛樺拰CPU,絀洪棿鍜屾椂闂寸殑鍗氬紙.
        鏄ㄥぉ鍙堝惉鍒拌繖鏍蜂竴鍙ヨ瘽”http姣攖cp鎱?#8221;……鍝綅鏈夌┖鐨勪粊鍏勪篃鏉ヨ皥璋堢綉緇滃惂, 鍛靛懙!



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