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Gavin.lee 2009-12-01 22:53 鍙戣〃璇勮
]]>java.lang.Thread 鐨勫嚑涓姸鎬侊紙鏈夊姪涓庤瀵焜ava dump錛岄氳繃鐘舵佸垎鏋愮▼搴忔ц兘錛?/title><link>http://www.tkk7.com/jzone/articles/303980.html</link><dc:creator>Gavin.lee</dc:creator><author>Gavin.lee</author><pubDate>Fri, 27 Nov 2009 14:11:00 GMT</pubDate><guid>http://www.tkk7.com/jzone/articles/303980.html</guid><description><![CDATA[<strong><span style="color: green">1.NEW</span></strong> <br /> 鑷充粖灝氭湭鍚姩鐨勭嚎紼嬬殑鐘舵併?<br /> <br /> <strong><span style="color: green">2.RUNNABLE</span></strong> <br /> 鍙繍琛岀嚎紼嬬殑綰跨▼鐘舵併傚浜庡彲榪愯鐘舵佺殑鏌愪竴綰跨▼姝ｅ湪 Java 铏氭嫙鏈轟腑榪愯錛屼絾瀹冨彲鑳芥鍦ㄧ瓑寰呮搷浣滅郴緇熶腑鐨勫叾浠栬祫婧愶紝姣斿澶勭悊鍣ㄣ?<br /> <br /> <strong><span style="color: green">3.BLOCKED</span></strong> <br /> 鍙楅樆濉炲茍涓旀鍦ㄧ瓑寰呯洃瑙嗗櫒閿佺殑鏌愪竴綰跨▼鐨勭嚎紼嬬姸鎬併傚浜庡彈闃誨鐘舵佺殑鏌愪竴綰跨▼姝ｅ湪絳夊緟鐩戣鍣ㄩ攣錛屼互渚胯繘鍏ヤ竴涓悓姝ョ殑鍧?鏂規(guī)硶錛屾垨鑰呭湪璋冪敤 Object.wait 涔嬪悗鍐嶆榪涘叆鍚屾鐨勫潡/鏂規(guī)硶銆?<br /> <br /> <strong><span style="color: green">4.WAITING</span></strong> <br /> 鏌愪竴絳夊緟綰跨▼鐨勭嚎紼嬬姸鎬併傛煇涓綰跨▼鍥犱負(fù)璋冪敤涓嬪垪鏂規(guī)硶涔嬩竴鑰屽浜庣瓑寰呯姸鎬侊細(xì) <br /> <ul> <li>涓嶅甫瓚呮椂鍊肩殑 Object.wait <li>涓嶅甫瓚呮椂鍊肩殑 Thread.join </li> </ul> <br /> LockSupport.park <br /> 澶勪簬絳夊緟鐘舵佺殑綰跨▼姝ｇ瓑寰呭彟涓涓嚎紼嬶紝浠ユ墽琛岀壒瀹氭搷浣溿?渚嬪錛屽凡緇忓湪鏌愪竴瀵硅薄涓婅皟鐢ㄤ簡(jiǎn) Object.wait() 鐨勭嚎紼嬫絳夊緟鍙︿竴涓嚎紼嬶紝浠ヤ究鍦ㄨ瀵硅薄涓婅皟鐢?Object.notify() 鎴?Object.notifyAll()銆傚凡緇忚皟鐢ㄤ簡(jiǎn) Thread.join() 鐨勭嚎紼嬫鍦ㄧ瓑寰呮寚瀹氱嚎紼嬬粓姝€?<br /> <br /> <strong><span style="color: green">5.TIMED_WAITING</span></strong>鍏鋒湁鎸囧畾絳夊緟鏃墮棿鐨勬煇涓絳夊緟綰跨▼鐨勭嚎紼嬬姸鎬併傛煇涓綰跨▼鍥犱負(fù)璋冪敤浠ヤ笅甯︽湁鎸囧畾姝ｇ瓑寰呮椂闂寸殑鏂規(guī)硶涔嬩竴鑰屽浜庡畾鏃剁瓑寰呯姸鎬侊細(xì) <br /> <ul> <li>Thread.sleep <li>甯︽湁瓚呮椂鍊肩殑 Object.wait <li>甯︽湁瓚呮椂鍊肩殑 Thread.join <li>LockSupport.parkNanos <li>LockSupport.parkUntil </li> </ul> <br /> <strong><span style="color: green">6.TERMINATED</span></strong> <br /> 宸茬粓姝㈢嚎紼嬬殑綰跨▼鐘舵併傜嚎紼嬪凡緇忕粨鏉熸墽琛屻?<br /> <br /> <strong>娉ㄦ剰錛氬湪緇欏畾鏃墮棿鐐逛笂錛屼竴涓嚎紼嬪彧鑳藉浜庝竴縐嶇姸鎬併傝繖浜涚姸鎬佹槸铏氭嫙鏈虹姸鎬侊紝瀹冧滑騫舵病鏈夊弽鏄犳墍鏈夋搷浣滅郴緇熺嚎紼嬬姸鎬併?/strong> <br /> <br /> 涓轟簡(jiǎn)灞曠幇綰跨▼鍦ㄨ繍琛屾椂鐨勭姸鎬佸強(qiáng)鍏惰漿鎹紝鎴戠敾浜?jiǎn)涓嬮潰杩欎釜鍥惧Q?<br /> <strong><span style="color: green"><img alt="" src="http://www.tkk7.com/images/blogjava_net/jzone/200911/thread-state.jpg" border="0" /></span></strong><br /> <img src ="http://www.tkk7.com/jzone/aggbug/303980.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/jzone/" target="_blank">Gavin.lee</a> 2009-11-27 22:11 <a href="http://www.tkk7.com/jzone/articles/303980.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>澶氱嚎紼嬪疄鐢ㄦ搷浣滄柟娉曞ぇ鍏?/title><link>http://www.tkk7.com/jzone/articles/287381.html</link><dc:creator>Gavin.lee</dc:creator><author>Gavin.lee</author><pubDate>Sun, 19 Jul 2009 15:41:00 GMT</pubDate><guid>http://www.tkk7.com/jzone/articles/287381.html</guid><description><![CDATA[     鎽樿:  綰跨▼鎺у埗鍩烘湰鏂規(guī)硶   鏂?nbsp;   娉?nbsp;                        &...  <a href='http://www.tkk7.com/jzone/articles/287381.html'>闃呰鍏ㄦ枃</a><img src ="http://www.tkk7.com/jzone/aggbug/287381.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/jzone/" target="_blank">Gavin.lee</a> 2009-07-19 23:41 <a href="http://www.tkk7.com/jzone/articles/287381.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>綰跨▼鐞嗚鍩虹http://www.tkk7.com/jzone/articles/287371.htmlGavin.leeGavin.leeSun, 19 Jul 2009 13:10:00 GMThttp://www.tkk7.com/jzone/articles/287371.html 榪涚▼錛氬疄闄呮槸闈?rùn)鎬佹枃浠訛紝鎵浠ヨ榪涚▼鏄釜闈?rùn)鎬佹蹇碉紝瀹為檯榪愯鐨勯兘鏄嚎紼嬨?br />
澶氱嚎紼嬶細(xì)鍦ㄥ悓涓涓簲鐢ㄧ▼搴忎腑鏈夊涓『搴忔祦鍚屾椂鎵ц
澶氳繘紼嬶細(xì)鍦ㄦ搷浣滅郴緇熶腑鑳藉悓鏃惰繍琛屽涓換鍔★紙紼嬪簭)

綰跨▼涓庤繘紼嬬殑鍖哄埆錛氭瘡涓繘紼嬮兘闇瑕佹搷浣滅郴緇熶負(fù)鍏跺垎閰嶇嫭绔嬬殑鍐呭瓨鍦板潃絀洪棿錛岃屽悓涓榪涚▼涓殑鎵鏈夌嚎紼嬪湪鍚屼竴鍧楀湴鍧絀洪棿涓伐浣滐紝榪欎簺綰跨▼鍙互鍏變韓鍚屼竴鍧楀唴瀛樺拰緋葷粺璧勬簮銆?br />
璇峰厛鐞嗚В涓嬮潰榪欏彞璇濓細(xì)涓涓繘紼嬫槸涓涓榪愯鐨勫簲鐢ㄧ▼搴忕殑瀹炰緥 銆傚畠鐢變袱涓儴鍒嗙粍鎴愶細(xì)涓涓槸鎿嶄綔緋葷粺鐢ㄦ潵綆＄悊榪欎釜榪涚▼鐨勫唴鏍稿璞°傚彟涓涓槸榪欎釜榪涚▼鎷ユ湁鐨勫湴鍧絀洪棿銆備粠鎵ц瑙掑害鏂歸潰鐪嬶紝涓涓繘紼嬬敱涓涓垨澶氫釜綰跨▼緇勬垚銆備竴涓嚎紼嬫槸涓涓墽琛屽崟鍏冿紝瀹冩帶鍒禖PU鎵ц榪涚▼涓煇涓孌典唬鐮佹銆備竴涓嚎紼嬪彲浠ヨ闂繖涓繘紼嬩腑鎵鏈夌殑鍦板潃絀洪棿鍜岃祫婧愩備竴涓繘紼嬫渶灝戝寘鎷竴涓嚎紼嬫潵鎵ц浠ｇ爜錛岃繖涓嚎紼嬪張鍙仛涓葷嚎紼嬨?銆綰跨▼闄や簡(jiǎn)鑳藉璁塊棶榪涚▼鐨勮祫婧愬錛屾瘡涓嚎紼嬭繕鎷ユ湁鑷繁鐨勬爤


鍒涘緩綰跨▼鏈変袱縐嶆柟寮忥紝濡備笅錛?
1銆?鎵╁睍java.lang.Thread綾伙紝閲嶈澆run
2銆?瀹炵幇Runnable鎺ュ彛錛岄噸鍐檙un
Thread綾諱唬琛ㄧ嚎紼嬬被錛屽畠鐨勪袱涓渶涓昏鐨勬柟娉曟槸錛?
run()鈥斺斿寘鍚嚎紼嬭繍琛屾椂鎵鎵ц鐨勪唬鐮侊紙綰跨▼浣擄級(jí)
start()鈥斺旂敤浜庡惎鍔ㄧ嚎紼?


涓涓嚎紼嬪彧鑳借鍚姩涓嬈°傜浜屾鍚姩鏃跺皢浼?xì)鎶涘嚭java.lang.IllegalThreadExcetpion寮傚父

鍦ㄥ悓涓涓椂闂寸偣錛屼竴涓狢PU鍙敮鎸佷竴涓嚎紼?br />
鐪熸鐨勫綰跨▼鍙瓨鍦ㄤ笌澶欳PU

鎵浠ヨ浣咰PU鎿嶄綔緋葷粺鍙兘璇存敮鎸佸綰跨▼

               

涓ょ綰跨▼妯″紡
鍗忎綔寮?涓涓嚎紼嬩繚鐣欏澶勭悊鍣ㄧ殑鎺у埗鐩村埌瀹冭嚜宸卞喅瀹氭斁寮?nbsp;
             a.閫熷害蹇佷唬浠蜂綆 
             b.鐢ㄦ埛緙栫▼闈炲父楹葷儲(chǔ) 
鎶㈠厛寮?緋葷粺鍙互浠繪剰鐨勪粠綰跨▼涓ず鍥炲CPU鐨勬帶鍒舵潈錛屽啀鎶婃帶鍒舵潈鍒嗙粰鍏跺畠鐨勭嚎紼?銆?br />              a.涓ゆ鍒囨崲涔嬮棿鐨勬椂闂撮棿闅斿氨鍙仛鏃墮棿鐗?nbsp;
             b.鏁堢巼涓嶅鍗忎綔寮忛珮 錛孫S鏍稿績(jī)蹇呴』璐熻矗綆＄悊綰跨▼ 
             c.綆鍖栫紪紼嬶紝鑰屼笖浣跨▼搴忔洿鍔犲彲闈?
澶氭暟綰跨▼鐨勮皟搴︽槸鎶㈠厛寮忕殑

鍚屼竴涓嚎紼嬬被錛屽彲new鍑轟袱涓嚎紼嬪璞?br />



綰跨▼錛氭槸鎸囪繘紼嬩腑鐨勪竴涓墽琛屾祦紼嬨?
綰跨▼涓庤繘紼嬬殑鍖哄埆錛氭瘡涓繘紼嬮兘闇瑕佹搷浣滅郴緇熶負(fù)鍏跺垎閰嶇嫭绔嬬殑鍐呭瓨鍦板潃絀洪棿錛岃屽悓涓榪涚▼涓殑鎵鏈夌嚎紼嬪湪鍚屼竴鍧楀湴鍧絀洪棿涓伐浣滐紝榪欎簺綰跨▼鍙互鍏變韓鍚屼竴鍧楀唴瀛樺拰緋葷粺璧勬簮銆?


濡備綍鍒涘緩涓涓嚎紼嬶紵

鍒涘緩綰跨▼鏈変袱縐嶆柟寮忥紝濡備笅錛?
1銆?鎵╁睍java.lang.Thread綾?
2銆?瀹炵幇Runnable鎺ュ彛
Thread綾諱唬琛ㄧ嚎紼嬬被錛屽畠鐨勪袱涓渶涓昏鐨勬柟娉曟槸錛?
run()鈥斺斿寘鍚嚎紼嬭繍琛屾椂鎵鎵ц鐨勪唬鐮?
Start()鈥斺旂敤浜庡惎鍔ㄧ嚎紼?

涓涓嚎紼嬪彧鑳借鍚姩涓嬈°傜浜屾鍚姩鏃跺皢浼?xì)鎶涘嚭java.lang.IllegalThreadExcetpion寮傚父

綰跨▼闂寸姸鎬佺殑杞崲錛堝鍥劇ず錛?

鏂板緩鐘舵侊細(xì)鐢╪ew璇彞鍒涘緩鐨勭嚎紼嬪璞″浜庢柊寤虹姸鎬侊紝姝ゆ椂瀹冨拰鍏跺畠鐨刯ava瀵硅薄涓鏍鳳紝浠呬粎鍦ㄥ爢涓鍒嗛厤浜?jiǎn)鍐呭?
灝辯華鐘舵侊細(xì)褰撲竴涓嚎紼嬪垱寤轟簡(jiǎn)浠ュ悗錛屽叾浠栫殑綰跨▼璋冪敤浜?jiǎn)瀹冪殑start()鏂規(guī)硶錛岃綰跨▼灝辮繘鍏ヤ簡(jiǎn)灝辯華鐘舵併傚浜庤繖涓姸鎬佺殑綰跨▼浣嶄簬鍙繍琛屾睜涓紝絳夊緟鑾峰緱CPU鐨勪嬌鐢ㄦ潈
榪愯鐘舵侊細(xì)澶勪簬榪欎釜鐘舵佺殑綰跨▼鍗犵敤CPU,鎵ц紼嬪簭鐨勪唬鐮?
闃誨鐘舵侊細(xì)褰撶嚎紼嬪浜庨樆濉炵姸鎬佹椂錛宩ava铏氭嫙鏈轟笉浼?xì)缁櫨U跨▼鍒嗛厤CPU錛岀洿鍒扮嚎紼嬮噸鏂拌繘鍏ュ氨緇姸鎬侊紝瀹冩墠鏈夋満浼?xì)铦{鍒拌繍琛岀姸鎬併?
闃誨鐘舵佸垎涓轟笁縐嶆儏鍐碉細(xì)
1銆?浣嶄簬瀵硅薄絳夊緟姹犱腑鐨勯樆濉炵姸鎬侊細(xì)褰撶嚎紼嬭繍琛屾椂錛屽鏋滄墽琛屼簡(jiǎn)鏌愪釜瀵硅薄鐨剋ait()鏂規(guī)硶錛宩ava铏氭嫙鏈哄氨鍥炴妸綰跨▼鏀懼埌榪欎釜瀵硅薄鐨勭瓑寰呮睜涓?
2銆?浣嶄簬瀵硅薄閿佷腑鐨勯樆濉炵姸鎬侊紝褰撶嚎紼嬪浜庤繍琛岀姸鎬佹椂錛岃瘯鍥捐幏寰楁煇涓璞＄殑鍚屾閿佹椂錛屽鏋滆瀵硅薄鐨勫悓姝ラ攣宸茬粡琚叾浠栫殑綰跨▼鍗犵敤錛孞VM灝變細(xì)鎶婅繖涓嚎紼嬫斁鍒拌繖涓璞＄殑鐞愭睜涓?
3銆?鍏跺畠鐨勯樆濉炵姸鎬侊細(xì)褰撳墠綰跨▼鎵ц浜?jiǎn)sleep()鏂規(guī)硶錛屾垨鑰呰皟鐢ㄤ簡(jiǎn)鍏跺畠綰跨▼鐨刯oin()鏂規(guī)硶錛屾垨鑰呭彂鍑轟簡(jiǎn)I/O璇鋒眰鏃訛紝灝變細(xì)榪涘叆榪欎釜鐘舵佷腑銆?

姝諱骸鐘舵侊細(xì)褰撶嚎紼嬮鍑轟簡(jiǎn)run()鏂規(guī)硶錛屽氨榪涘叆浜?jiǎn)姝讳骸鐘舵侊紝璇ョ嚎紼嬬粨鏉熶簡(jiǎn)鐢熷懡鍛ㄦ湡銆?
鎴栬呮甯擱鍑?
鎴栬呴亣鍒板紓甯擱鍑?
Thread綾葷殑isAlive()鏂規(guī)硶鍒ゆ柇涓涓嚎紼嬫槸鍚︽椿鐫錛屽綋綰跨▼澶勪簬姝諱骸鐘舵佹垨鑰呮柊寤虹姸鎬佹椂錛岃鏂規(guī)硶榪斿洖false,鍦ㄥ叾浣欑殑鐘舵佷笅錛岃鏂規(guī)硶榪斿洖true.

綰跨▼璋冨害
綰跨▼璋冨害妯″瀷錛氬垎鏃惰皟搴︽ā鍨嬪拰鎶㈠崰寮忚皟搴︽ā鍨?
JVM閲囩敤鎶㈠崰寮忚皟搴︽ā鍨嬨?
鎵璋撶殑澶氱嚎紼嬬殑騫跺彂榪愯錛屽叾瀹炴槸鎸囧畯瑙備笂鐪嬶紝鍚勪釜綰跨▼杞祦鑾峰緱CPU鐨勪嬌鐢ㄦ潈錛屽垎鍒墽琛屽悇鑷殑浠誨姟銆?
錛堢嚎紼嬬殑璋冨害涓嶆槸璺ㄥ鉤鍙幫紝瀹冧笉浠呭彇鍐充簬java铏氭嫙鏈猴紝瀹冭繕?shù)緷璧栦簬鎿嶄綔绯痪l燂級(jí)

濡傛灉甯屾湜鏄庣‘鍦拌涓涓嚎紼嬬粰鍙﹀涓涓嚎紼嬭繍琛岀殑鏈轟細(xì)錛屽彲浠ラ噰鍙栦互涓嬬殑鍔炴硶涔嬩竴
1銆?璋冩暣鍚勪釜綰跨▼鐨勪紭鍏堢駭
2銆?璁╁浜庤繍琛岀姸鎬佺殑綰跨▼璋冪敤Thread.sleep()鏂規(guī)硶
3銆?璁╁浜庤繍琛岀姸鎬佺殑綰跨▼璋冪敤Thread.yield()鏂規(guī)硶
4銆?璁╁浜庤繍琛岀姸鎬佺殑綰跨▼璋冪敤鍙︿竴涓嚎紼嬬殑join()鏂規(guī)硶

璋冩暣鍚勪釜綰跨▼鐨勪紭鍏堢駭
Thread綾葷殑setPriority(int)鍜実etPriority()鏂規(guī)硶鍒嗗埆鐢ㄦ潵璁劇疆浼樺厛綰у拰璇誨彇浼樺厛綰с?
濡傛灉甯屾湜紼嬪簭鑳藉縐誨煎埌鍚勪釜鎿嶄綔緋葷粺涓紝搴旇紜繚鍦ㄨ緗嚎紼嬬殑浼樺厛綰ф椂錛屽彧浣跨敤MAX_PRIORITY銆丯ORM_PRIORITY銆丮IN_PRIORITY榪?涓紭鍏堢駭銆?

綰跨▼鐫＄湢錛氬綋綰跨▼鍦ㄨ繍琛屼腑鎵ц浜?jiǎn)sleep()鏂規(guī)硶鏃訛紝瀹冨氨浼?xì)鏀惧純CPU錛岃漿鍒伴樆濉炵姸鎬併?
綰跨▼璁╂錛氬綋綰跨▼鍦ㄨ繍琛屼腑鎵ц浜?jiǎn)Thread綾葷殑yield()闈?rùn)鎬佹柟娉曟椂錛屽鏋滄鏃跺叿鏈夌浉鍚屼紭鍏堢駭鐨勫叾瀹冪嚎紼嬪浜庡氨緇姸鎬侊紝閭ｄ箞yield()鏂規(guī)硶灝嗘妸褰撳墠榪愯鐨勭嚎紼嬫斁鍒拌繍琛屾睜涓茍浣垮彟涓涓嚎紼嬭繍琛屻傚鏋滄病鏈夌浉鍚屼紭鍏堢駭鐨勫彲榪愯綰跨▼錛屽垯yield()鏂規(guī)硶浠涔堜篃涓嶅仛銆?
Sleep()鏂規(guī)硶鍜寉ield()鏂規(guī)硶閮芥槸Thread綾葷殑闈?rùn)鎬佹柟娉曪紝閮戒細(xì)浣垮綋鍓嶅浜庤繍琛岀姸鎬佺殑綰跨▼鏀懼純CPU錛屾妸榪愯鏈轟細(xì)璁╃粰鍒殑綰跨▼錛屼袱鑰呯殑鍖哄埆鍦ㄤ簬錛?
1銆乻leep()鏂規(guī)硶浼?xì)缁欏叾浠柧U跨▼榪愯鐨勬満浼?xì)锛岃屼笉鑰冭檻鍏朵粬綰跨▼鐨勪紭鍏堢駭錛屽洜姝や細(xì)緇欒緝浣庣嚎紼嬩竴涓繍琛岀殑鏈轟細(xì)錛泍ield()鏂規(guī)硶鍙細(xì)緇欑浉鍚屼紭鍏堢駭鎴栬呮洿楂樹(shù)紭鍏堢駭鐨勭嚎紼嬩竴涓繍琛岀殑鏈轟細(xì)銆?
2銆佸綋綰跨▼鎵ц浜?jiǎn)sleep(long millis)鏂規(guī)硶鍚庯紝灝嗚漿鍒伴樆濉炵姸鎬侊紝鍙傛暟millis鎸囧畾鐫＄湢鏃墮棿錛涘綋綰跨▼鎵ц浜?jiǎn)yield()鏂規(guī)硶鍚庯紝灝嗚漿鍒板氨緇姸鎬併?
3銆乻leep()鏂規(guī)硶澹版槑鎶涘嚭InterruptedException寮傚父錛岃寉ield()鏂規(guī)硶娌℃湁澹版槑鎶涘嚭浠諱綍寮傚父
4銆乻leep()鏂規(guī)硶姣攜ield()鏂規(guī)硶鍏鋒湁鏇村ソ鐨勭Щ妞嶆?

絳夊緟鍏跺畠綰跨▼鐨勭粨鏉燂細(xì)join()
褰撳墠榪愯鐨勭嚎紼嬪彲浠ヨ皟鐢ㄥ彟涓涓嚎紼嬬殑 join()鏂規(guī)硶錛屽綋鍓嶈繍琛岀殑綰跨▼灝嗚漿鍒伴樆濉炵姸鎬侊紝鐩村埌鍙︿竴涓嚎紼嬭繍琛岀粨鏉燂紝瀹冩墠鎭㈠榪愯銆?

瀹氭椂鍣═imer:鍦↗DK鐨刯ava.util鍖呬腑鎻愪緵浜?jiǎn)涓涓疄鐢ㄧ被Timer, 瀹冭兘澶熷畾鏃舵墽琛岀壒瀹氱殑浠誨姟銆?

綰跨▼鐨勫悓姝?
鍘熷瓙鎿嶄綔錛氭牴鎹甁ava瑙勮寖錛屽浜庡熀鏈被鍨嬬殑璧嬪兼垨鑰呰繑鍥炲兼搷浣滐紝鏄師瀛愭搷浣溿備絾榪欓噷鐨勫熀鏈暟鎹被鍨嬩笉鍖呮嫭long鍜宒ouble, 鍥犱負(fù)JVM鐪嬪埌鐨勫熀鏈瓨鍌ㄥ崟浣嶆槸32浣嶏紝鑰宭ong 鍜宒ouble閮借鐢?4浣嶆潵琛ㄧず銆傛墍浠ユ棤娉曞湪涓涓椂閽熷懆鏈熷唴瀹屾垚銆?

鑷鎿嶄綔錛?+錛変笉鏄師瀛愭搷浣滐紝鍥犱負(fù)瀹冩秹鍙?qiáng)鍒颁竴嬈¤鍜屼竴嬈″啓銆?

鍘熷瓙鎿嶄綔錛氱敱涓緇勭浉鍏崇殑鎿嶄綔瀹屾垚錛岃繖浜涙搷浣滃彲鑳戒細(xì)鎿嶇旱涓庡叾瀹冪殑綰跨▼鍏變韓鐨勮祫婧愶紝涓轟簡(jiǎn)淇濊瘉寰楀埌姝ｇ‘鐨勮繍綆楃粨鏋滐紝涓涓嚎紼嬪湪鎵ц鍘熷瓙鎿嶄綔鍏墮棿錛屽簲璇ラ噰鍙栧叾浠栫殑鎺柦浣垮緱鍏朵粬鐨勭嚎紼嬩笉鑳芥搷綰靛叡浜祫婧愩?

鍚屾浠ｇ爜鍧楋細(xì)涓轟簡(jiǎn)淇濊瘉姣忎釜綰跨▼鑳藉姝ｅ父鎵ц鍘熷瓙鎿嶄綔錛孞ava寮曞叆浜?jiǎn)鍚屾鏈哄堄灱屽叿浣撶殑鍋氭硶鏄湪浠ｈ〃鍘熷瓙鎿嶄綔鐨劷E嬪簭浠ｇ爜鍓嶅姞涓妔ynchronized鏍囪錛岃繖鏍風(fēng)殑浠ｇ爜琚О涓哄悓姝ヤ唬鐮佸潡銆?

鍚屾閿侊細(xì)姣忎釜JAVA瀵硅薄閮芥湁涓斿彧鏈変竴涓悓姝ラ攣錛屽湪浠諱綍鏃跺埢錛屾渶澶氬彧鍏佽涓涓嚎紼嬫嫢鏈夎繖鎶婇攣銆?

褰撲竴涓嚎紼嬭瘯鍥捐闂甫鏈塻ynchronized(this)鏍囪鐨勪唬鐮佸潡鏃訛紝蹇呴』鑾峰緱 this鍏抽敭瀛楀紩鐢ㄧ殑瀵硅薄鐨勯攣錛屽湪浠ヤ笅鐨勪袱縐嶆儏鍐典笅錛屾湰綰跨▼鏈夌潃涓嶅悓鐨勫懡榪愩?
1銆?鍋囧榪欎釜閿佸凡緇忚鍏跺畠鐨勭嚎紼嬪崰鐢紝JVM灝變細(xì)鎶婅繖涓嚎紼嬫斁鍒版湰瀵硅薄鐨勯攣姹犱腑銆傛湰綰跨▼榪涘叆闃誨鐘舵併傞攣姹犱腑鍙兘鏈夊緢澶氱殑綰跨▼錛岀瓑鍒板叾浠栫殑綰跨▼閲婃斁浜?jiǎn)閿佸Q孞VM灝變細(xì)浠庨攣姹犱腑闅忔満鍙栧嚭涓涓嚎紼嬶紝浣胯繖涓嚎紼嬫嫢鏈夐攣錛屽茍涓旇漿鍒板氨緇姸鎬併?
2銆?鍋囧榪欎釜閿佹病鏈夎鍏朵粬綰跨▼鍗犵敤錛屾湰綰跨▼浼?xì)鑾峰緱杩欐妸閿佸Q屽紑濮嬫墽琛屽悓姝ヤ唬鐮佸潡銆?
錛堜竴鑸儏鍐典笅鍦ㄦ墽琛屽悓姝ヤ唬鐮佸潡鏃朵笉浼?xì)閲婃攽謵屾閿佸Q屼絾涔熸湁鐗規(guī)畩鎯呭喌浼?xì)閲婃攽织硅薄閿?
濡傚湪鎵ц鍚屾浠ｇ爜鍧楁椂錛岄亣鍒板紓甯歌屽鑷寸嚎紼嬬粓姝紝閿佷細(xì)琚噴鏀撅紱鍦ㄦ墽琛屼唬鐮佸潡鏃訛紝鎵ц浜?jiǎn)閿佹墍灞炲璞＄殑wait()鏂規(guī)硶錛岃繖涓嚎紼嬩細(xì)閲婃斁瀵硅薄閿侊紝榪涘叆瀵硅薄鐨勭瓑寰呮睜涓級(jí)

綰跨▼鍚屾鐨勭壒寰侊細(xì)
1銆?濡傛灉涓涓悓姝ヤ唬鐮佸潡鍜岄潪鍚屾浠ｇ爜鍧楀悓鏃舵搷浣滃叡浜祫婧愶紝浠嶇劧浼?xì)閫犳垚瀵瑰叡浜祫婧愮殑绔炰簤銆傚洜涓哄綋涓涓嚎紼嬫墽琛屼竴涓璞＄殑鍚屾浠ｇ爜鍧楁椂錛屽叾浠栫殑綰跨▼浠嶇劧鍙互鎵ц瀵硅薄鐨勯潪鍚屾浠ｇ爜鍧椼傦紙鎵璋撶殑綰跨▼涔嬮棿淇濇寔鍚屾錛屾槸鎸囦笉鍚岀殑綰跨▼鍦ㄦ墽琛屽悓涓涓璞＄殑鍚屾浠ｇ爜鍧楁椂錛屽洜涓鴻鑾峰緱瀵硅薄鐨勫悓姝ラ攣鑰屼簰鐩哥壍鍒訛級(jí)
2銆?姣忎釜瀵硅薄閮芥湁鍞竴鐨勫悓姝ラ攣
3銆?鍦ㄩ潤(rùn)鎬佹柟娉曞墠闈㈠彲浠ヤ嬌鐢╯ynchronized淇グ絎︺?
4銆?褰撲竴涓嚎紼嬪紑濮嬫墽琛屽悓姝ヤ唬鐮佸潡鏃訛紝騫朵笉鎰忓懗鐫蹇呴』浠ヤ笉闂存柇鐨勬柟寮忚繍琛岋紝榪涘叆鍚屾浠ｇ爜鍧楃殑綰跨▼鍙互鎵цThread.sleep()鎴栬呮墽琛孴hread.yield()鏂規(guī)硶錛屾鏃跺畠騫朵笉閲婃斁瀵硅薄閿侊紝鍙槸鎶婅繍琛岀殑鏈轟細(xì)璁╃粰鍏朵粬鐨勭嚎紼嬨?
5銆?Synchronized澹版槑涓嶄細(xì)琚戶鎵匡紝濡傛灉涓涓敤synchronized淇グ鐨勬柟娉曡瀛愮被瑕嗙洊錛岄偅涔堝瓙綾諱腑榪欎釜鏂規(guī)硶涓嶅湪淇濇寔鍚屾錛岄櫎闈炵敤synchronized淇グ銆?

綰跨▼瀹夊叏鐨勭被錛?
1銆?榪欎釜綾葷殑瀵硅薄鍙互鍚屾椂琚涓嚎紼嬪畨鍏ㄧ殑璁塊棶銆?
2銆?姣忎釜綰跨▼閮借兘姝ｅ父鐨勬墽琛屽師瀛愭搷浣滐紝寰楀埌姝ｇ‘鐨勭粨鏋溿?
3銆?鍦ㄦ瘡涓嚎紼嬬殑鍘熷瓙鎿嶄綔閮藉畬鎴愬悗錛屽璞″浜庨昏緫涓婂悎鐞嗙殑鐘舵併?

閲婃斁瀵硅薄鐨勯攣錛?
1銆?鎵ц瀹屽悓姝ヤ唬鐮佸潡灝變細(xì)閲婃斁瀵硅薄鐨勯攣
2銆?鍦ㄦ墽琛屽悓姝ヤ唬鐮佸潡鐨勮繃紼嬩腑錛岄亣鍒板紓甯歌屽鑷寸嚎紼嬬粓姝紝閿佷篃浼?xì)琚噴鏀?
3銆?鍦ㄦ墽琛屽悓姝ヤ唬鐮佸潡鐨勮繃紼嬩腑錛屾墽琛屼簡(jiǎn)閿佹墍灞炲璞＄殑wait()鏂規(guī)硶錛岃繖涓嚎紼嬩細(xì)閲婃斁瀵硅薄閿侊紝榪涘叆瀵硅薄鐨勭瓑寰呮睜銆?

姝婚攣
褰撲竴涓嚎紼嬬瓑寰呯敱鍙︿竴涓嚎紼嬫寔鏈夌殑閿侊紝鑰屽悗鑰呮鍦ㄧ瓑寰呭凡琚涓涓嚎紼嬫寔鏈夌殑閿佹椂錛屽氨浼?xì)鍙戠敓姝婚攣銆侸VM涓嶇洃嫻嬩篃涓嶈瘯鍥鵑伩鍏嶈繖縐嶆儏鍐碉紝鍥犳淇濊瘉涓嶅彂鐢熸閿佸氨鎴愪簡(jiǎn)紼嬪簭鍛樼殑璐ｄ換銆?

濡備綍閬垮厤姝婚攣
涓涓氱敤鐨勭粡楠屾硶鍒欐槸錛氬綋鍑犱釜綰跨▼閮借璁塊棶鍏變韓璧勬簮A銆丅銆丆 鏃訛紝淇濊瘉姣忎釜綰跨▼閮芥寜鐓у悓鏍風(fēng)殑欏哄簭鍘昏闂粬浠?

綰跨▼閫氫俊
Java.lang.Object綾諱腑鎻愪緵浜?jiǎn)涓や釜鐢ㄤ簬绾拷E嬮氫俊鐨勬柟娉?
1銆?wait():鎵ц浜?jiǎn)璇ユ栆?guī)硶鐨勭嚎紼嬮噴鏀懼璞＄殑閿侊紝JVM浼?xì)鎶婅绾拷E嬫斁鍒板璞＄殑絳夊緟姹犱腑銆傝綰跨▼絳夊緟鍏跺畠綰跨▼鍞ら啋
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Gavin.lee 2009-07-19 21:10 鍙戣〃璇勮
]]>澶氱嚎紼嬭璁℃柟娉?/title><link>http://www.tkk7.com/jzone/articles/287040.html</link><dc:creator>Gavin.lee</dc:creator><author>Gavin.lee</author><pubDate>Thu, 16 Jul 2009 14:32:00 GMT</pubDate><guid>http://www.tkk7.com/jzone/articles/287040.html</guid><description><![CDATA[     鎽樿: 涓錛氱戶鎵縏hread錛岄噸杞絩un鏂規(guī)硶 package com.Gavin.threaddesign; /** *//**  * **********************************************  * @description 緇ф壙Thread 綾葷殑澶氱嚎紼嬬▼搴?nbsp;璁捐鏂規(guī)硶&nb...  <a href='http://www.tkk7.com/jzone/articles/287040.html'>闃呰鍏ㄦ枃</a><img src ="http://www.tkk7.com/jzone/aggbug/287040.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/jzone/" target="_blank">Gavin.lee</a> 2009-07-16 22:32 <a href="http://www.tkk7.com/jzone/articles/287040.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <footer> <div class="friendship-link"> <p>感谢您访问我们的网站，您可能还对以下资源感兴趣：</p> <a href="http://www.tkk7.com/" title="亚洲av成人片在线观看">亚洲av成人片在线观看</a> <div class="friend-links"> </div> </div> </footer> 主站蜘蛛池模板： <a href="http://50077995.com" target="_blank">亚洲乱亚洲乱淫久久</a>| <a href="http://haichuanwangluo.com" target="_blank">自拍偷区亚洲国内自拍</a>| <a href="http://www-ttyx.com" target="_blank">国产伦精品一区二区免费</a>| <a href="http://njjngs.com" target="_blank">中文字幕无码免费久久9一区9</a>| <a href="http://zgjzysfc.com" target="_blank">国产色爽免费视频</a>| <a href="http://lebaojj.com" target="_blank">香蕉视频免费在线播放</a>| <a href="http://sdkjkj.com" target="_blank">亚洲精品国产精品国自产观看</a>| <a href="http://www026qqcom.com" target="_blank">黄页网站在线观看免费</a>| <a href="http://xx2015.com" target="_blank">亚洲色欲久久久久综合网</a>| <a href="http://564ka.com" target="_blank">国产VA免费精品高清在线</a>| <a href="http://38miao.com" target="_blank">四虎成人免费网站在线</a>| <a href="http://qingdaostf.com" target="_blank">亚洲an天堂an在线观看</a>| <a href="http://ningxialanh.com" target="_blank">久久99精品视免费看</a>| <a href="http://se988.com" target="_blank">亚洲午夜电影在线观看高清</a>| <a href="http://yutuzb.com" target="_blank">三根一起会坏掉的好痛免费三级全黄的视频在线观看 </a>| <a href="http://wwwxue1888.com" target="_blank">亚洲尹人九九大色香蕉网站</a>| <a href="http://tmg-beelen.com" target="_blank">久久久免费的精品</a>| <a href="http://91packing.com" target="_blank">亚洲国产精品免费在线观看</a>| <a href="http://kt4444.com" target="_blank">扒开双腿猛进入爽爽免费视频</a>| <a href="http://avav2021.com" target="_blank">国产AV无码专区亚洲AV毛网站</a>| <a href="http://aaa99999.com" target="_blank">欧美激情综合亚洲一二区</a>| <a href="http://yimintech.com" target="_blank">91成人免费观看在线观看</a>| <a href="http://nonobo.com" target="_blank">精品亚洲成a人片在线观看</a>| <a href="http://xx16xx.com" target="_blank">69影院毛片免费观看视频在线</a>| <a href="http://kph37.com" target="_blank">无码人妻久久一区二区三区免费丨 </a>| <a href="http://155lh.com" target="_blank">国产成人在线观看免费网站</a>| <a href="http://apguangyu.com" target="_blank">深夜a级毛片免费视频</a>| <a href="http://ac839.com" target="_blank">在线v片免费观看视频</a>| <a href="http://ytshdiping.com" target="_blank">亚洲成在人线在线播放无码</a>| <a href="http://www-15706.com" target="_blank">www亚洲精品少妇裸乳一区二区</a>| <a href="http://717795.com" target="_blank">亚洲日韩AV无码一区二区三区人</a>| <a href="http://blblkj.com" target="_blank">国产免费久久精品</a>| <a href="http://wxyz2.com" target="_blank">亚洲AV区无码字幕中文色 </a>| <a href="http://avdaka.com" target="_blank">中国在线观看免费的www</a>| <a href="http://hlyidc.com" target="_blank">亚洲精品国产啊女成拍色拍</a>| <a href="http://b7277.com" target="_blank">国产精品99久久免费观看</a>| <a href="http://taobaohuopin.com" target="_blank">亚洲人成无码www久久久</a>| <a href="http://www-9970.com" target="_blank">无码人妻一区二区三区免费n鬼沢</a>| <a href="http://508009.com" target="_blank">456亚洲人成影院在线观</a>| <a href="http://qiyupu.com" target="_blank">亚洲日韩在线第一页</a>| <a href="http://cnepu.com" target="_blank">综合在线免费视频</a>| <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body>