锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲中文无韩国r级电影,精品亚洲国产成AV人片传媒,国产亚洲欧美日韩亚洲中文色 http://www.tkk7.com/oracle/category/42070.html1100111010001110 1001010010001010zh-cnWed, 21 Oct 2009 07:06:33 GMTWed, 21 Oct 2009 07:06:33 GMT60瀹炴垬浣撲細Java澶氱嚎紼嬬紪紼嬬簿瑕?/title><link>http://www.tkk7.com/oracle/archive/2009/10/21/299116.html</link><dc:creator>閫嶉仴鏅ㄧ┖</dc:creator><author>閫嶉仴鏅ㄧ┖</author><pubDate>Tue, 20 Oct 2009 16:06:00 GMT</pubDate><guid>http://www.tkk7.com/oracle/archive/2009/10/21/299116.html</guid><wfw:comment>http://www.tkk7.com/oracle/comments/299116.html</wfw:comment><comments>http://www.tkk7.com/oracle/archive/2009/10/21/299116.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.tkk7.com/oracle/comments/commentRss/299116.html</wfw:commentRss><trackback:ping>http://www.tkk7.com/oracle/services/trackbacks/299116.html</trackback:ping><description><![CDATA[涓嬮潰鐨勮繖涓畝鍗曠殑 Java 紼嬪簭瀹屾垚鍥涢」涓嶇浉鍏崇殑浠誨姟銆傝繖鏍風殑紼嬪簭鏈夊崟涓帶鍒剁嚎紼嬶紝鎺у埗鍦ㄨ繖鍥涗釜浠誨姟涔嬮棿綰挎у湴縐誨姩銆傛澶栵紝鍥犱負鎵闇鐨勮祫婧?? 鎵撳嵃鏈恒佺鐩樸佹暟鎹簱鍜屾樉紺哄睆 鈥?鐢變簬紜歡鍜岃蔣浠剁殑闄愬埗閮芥湁鍐呭湪鐨勬綔浼忔椂闂達紝鎵浠ユ瘡欏逛換鍔¢兘鍖呭惈鏄庢樉鐨勭瓑寰呮椂闂淬傚洜姝わ紝紼嬪簭鍦ㄨ闂暟鎹簱涔嬪墠蹇呴』絳夊緟鎵撳嵃鏈哄畬鎴愭墦鍗版枃浠剁殑浠誨姟錛岀瓑絳夈傚鏋滄偍姝e湪絳夊緟紼嬪簭鐨勫畬鎴愶紝鍒欒繖鏄璁$畻璧勬簮鍜屾偍鐨勬椂闂寸殑涓縐嶆嫏鍔d嬌鐢ㄣ傛敼榪涙紼嬪簭鐨勪竴縐嶆柟娉曟槸浣垮畠鎴愪負澶氱嚎紼嬬殑銆?br /> <br /> 鍥涢」涓嶇浉鍏崇殑浠誨姟<br /> class myclass {<br /> static public void main(String args[]) {<br /> print_a_file();<br /> manipulate_another_file();<br /> access_database();<br /> draw_picture_on_screen();<br /> }<br /> }<br /> <br /> <br /> <br /> 澶氫釜榪涚▼<br /> <br /> 鍦ㄥぇ澶氭暟鎿嶄綔緋葷粺涓兘鍙互鍒涘緩澶氫釜榪涚▼銆傚綋涓涓▼搴忓惎鍔ㄦ椂錛屽畠鍙互涓哄嵆灝嗗紑濮嬬殑姣忛」浠誨姟鍒涘緩涓涓繘紼嬶紝騫跺厑璁稿畠浠悓鏃惰繍琛屻傚綋涓涓▼搴忓洜絳夊緟緗戠粶璁塊棶鎴栫敤鎴瘋緭鍏ヨ岃闃誨鏃訛紝鍙︿竴涓▼搴忚繕鍙互榪愯錛岃繖鏍峰氨澧炲姞浜嗚祫婧愬埄鐢ㄧ巼銆備絾鏄紝鎸夌収榪欑鏂瑰紡鍒涘緩姣忎釜榪涚▼瑕佷粯鍑轟竴瀹氱殑浠d環錛氳緗竴涓繘紼嬭鍗犵敤鐩稿綋涓閮ㄥ垎澶勭悊鍣ㄦ椂闂村拰鍐呭瓨璧勬簮銆傝屼笖錛屽ぇ澶氭暟鎿嶄綔緋葷粺涓嶅厑璁歌繘紼嬭闂叾浠栬繘紼嬬殑鍐呭瓨絀洪棿銆傚洜姝わ紝榪涚▼闂寸殑閫氫俊寰堜笉鏂逛究錛屽茍涓斾篃涓嶄細灝嗗畠鑷繁鎻愪緵緇欏鏄撶殑緙栫▼妯″瀷銆?br /> <br /> 綰跨▼<br /> <br /> 綰跨▼涔熺О涓鴻交鍨嬭繘紼?(LWP)銆傚洜涓虹嚎紼嬪彧鑳藉湪鍗曚釜榪涚▼鐨勪綔鐢ㄥ煙鍐呮椿鍔紝鎵浠ュ垱寤虹嚎紼嬫瘮鍒涘緩榪涚▼瑕佸粔浠峰緱澶氥傝繖鏍鳳紝鍥犱負綰跨▼鍏佽鍗忎綔鍜屾暟鎹氦鎹紝騫朵笖鍦ㄨ綆楄祫婧愭柟闈㈤潪甯稿粔浠鳳紝鎵浠ョ嚎紼嬫瘮榪涚▼鏇村彲鍙栥傜嚎紼嬮渶瑕佹搷浣滅郴緇熺殑鏀寔錛屽洜姝や笉鏄墍鏈夌殑鏈哄櫒閮芥彁渚涚嚎紼嬨侸ava 緙栫▼璇█錛屼綔涓虹浉褰撴柊鐨勪竴縐嶈璦錛屽凡灝嗙嚎紼嬫敮鎸佷笌璇█鏈韓鍚堜負涓浣擄紝榪欐牱灝卞綰跨▼鎻愪緵浜嗗己鍋ョ殑鏀寔銆?br /> <br /> 浣跨敤 Java 緙栫▼璇█瀹炵幇綰跨▼<br /> <br /> Java緙栫▼璇█浣垮綰跨▼濡傛綆鍗曟湁鏁堬紝浠ヨ嚧浜庢煇浜涚▼搴忓憳璇村畠瀹為檯涓婃槸鑷劧鐨勩傚敖綆″湪 Java 涓嬌鐢ㄧ嚎紼嬫瘮鍦ㄥ叾浠栬璦涓瀹規槗寰楀錛屼粛鐒舵湁涓浜涙蹇甸渶瑕佹帉鎻°傝璁頒綇鐨勪竴浠墮噸瑕佺殑浜嬫儏鏄?main() 鍑芥暟涔熸槸涓涓嚎紼嬶紝騫跺彲鐢ㄦ潵鍋氭湁鐢ㄧ殑宸ヤ綔銆傜▼搴忓憳鍙湁鍦ㄩ渶瑕佸涓嚎紼嬫椂鎵嶉渶瑕佸垱寤烘柊鐨勭嚎紼嬨?br /> <br /> Thread 綾?br /> 涓嬮潰鐨勪唬鐮佽鏄庝簡瀹冪殑鐢ㄦ硶錛?br /> <br /> 鍒涘緩涓や釜鏂扮嚎紼?br /> <br /> import java.util.*;<br /> class TimePrinter extends Thread {<br /> int pauseTime;<br /> String name;<br /> public TimePrinter(int x, String n) {<br /> pauseTime = x;<br /> name = n;<br /> }<br /> public void run() {<br /> while(true) {<br /> try {<br /> System.out.println(name + “:” + new<br /> Date(System.currentTimeMillis()));<br /> Thread.sleep(pauseTime);<br /> } catch(Exception e) {<br /> System.out.println(e);<br /> }<br /> }<br /> }<br /> static public void main(String args[]) {<br /> TimePrinter tp1 = new TimePrinter(1000, “Fast Guy”);<br /> tp1.start();<br /> TimePrinter tp2 = new TimePrinter(3000, “Slow Guy”);<br /> tp2.start();<br /> }<br /> }<br /> <br /> 鍦ㄦ湰渚嬩腑錛屾垜浠彲浠ョ湅鍒頒竴涓畝鍗曠殑紼嬪簭錛屽畠鎸変袱涓笉鍚岀殑鏃墮棿闂撮殧(1 縐掑拰 3 縐?鍦ㄥ睆騫曚笂鏄劇ず褰撳墠鏃墮棿銆傝繖鏄氳繃鍒涘緩涓や釜鏂扮嚎紼嬫潵瀹屾垚鐨勶紝鍖呮嫭 main() 鍏變笁涓嚎紼嬨備絾鏄紝鍥犱負鏈夋椂瑕佷綔涓虹嚎紼嬭繍琛岀殑綾誨彲鑳藉凡緇忔槸鏌愪釜綾誨眰嬈$殑涓閮ㄥ垎錛屾墍浠ュ氨涓嶈兘鍐嶆寜榪欑鏈哄埗鍒涘緩綰跨▼銆傝櫧鐒跺湪鍚屼竴涓被涓彲浠ュ疄鐜頒換鎰忔暟閲忕殑鎺ュ彛錛屼絾 Java 緙栫▼璇█鍙厑璁鎬竴涓被鏈変竴涓埗綾匯傚悓鏃訛紝鏌愪簺紼嬪簭鍛橀伩鍏嶄粠 Thread 綾誨鍑猴紝鍥犱負瀹冨己鍔犱簡綾誨眰嬈°傚浜庤繖縐嶆儏鍐碉紝灝辮 runnable 鎺ュ彛銆?br /> Runnable 鎺ュ彛<br /> <br /> 姝ゆ帴鍙e彧鏈変竴涓嚱鏁幫紝run()錛屾鍑芥暟蹇呴』鐢卞疄鐜頒簡姝ゆ帴鍙g殑綾誨疄鐜般備絾鏄紝灝辮繍琛岃繖涓被鑰岃錛屽叾璇箟涓庡墠涓涓ず渚嬬◢鏈変笉鍚屻傛垜浠彲浠ョ敤 runnable 鎺ュ彛鏀瑰啓鍓嶄竴涓ず渚嬨?涓嶅悓鐨勯儴鍒嗙敤榛戜綋琛ㄧず銆?<br /> <br /> 鍒涘緩涓や釜鏂扮嚎紼嬭屼笉寮哄姞綾誨眰嬈?br /> import java.util.*;<br /> class TimePrinter implements Runnable {<br /> int pauseTime;<br /> String name;<br /> public TimePrinter(int x, String n) {<br /> pauseTime = x;<br /> name = n;<br /> }<br /> public void run() {<br /> while(true) {<br /> try {<br /> System.out.println(name + “:” + new<br /> Date(System.currentTimeMillis()));<br /> Thread.sleep(pauseTime);<br /> } catch(Exception e) {<br /> System.out.println(e);<br /> }<br /> }<br /> }<br /> static public void main(String args[]) {<br /> Thread t1 = new Thread(new TimePrinter(1000, “Fast Guy”));<br /> t1.start();<br /> Thread t2 = new Thread(new TimePrinter(3000, “Slow Guy”));<br /> t2.start();<br /> }<br /> }<br /> 璇鋒敞鎰忥紝褰撲嬌鐢?runnable 鎺ュ彛鏃訛紝鎮ㄤ笉鑳界洿鎺ュ垱寤烘墍闇綾葷殑瀵硅薄騫惰繍琛屽畠; 蹇呴』浠?Thread 綾葷殑涓涓疄渚嬪唴閮ㄨ繍琛屽畠銆傝澶氱▼搴忓憳鏇村枩嬈?runnable 鎺ュ彛錛屽洜涓轟粠 Thread 綾葷戶鎵夸細寮哄姞綾誨眰嬈°?br /> <br /> synchronized 鍏抽敭瀛?br /> <br /> 鍒扮洰鍓嶄負姝紝鎴戜滑鐪嬪埌鐨勭ず渚嬮兘鍙槸浠ラ潪甯哥畝鍗曠殑鏂瑰紡鏉ュ埄鐢ㄧ嚎紼嬨傚彧鏈夋渶灝忕殑鏁版嵁嫻侊紝鑰屼笖涓嶄細鍑虹幇涓や釜綰跨▼璁塊棶鍚屼竴涓璞$殑鎯呭喌銆備絾鏄紝鍦ㄥぇ澶氭暟鏈夌敤鐨勭▼搴忎腑錛岀嚎紼嬩箣闂撮氬父鏈変俊鎭祦銆傝瘯鑰冭檻涓涓噾铻嶅簲鐢ㄧ▼搴忥紝瀹冩湁涓涓?Account 瀵硅薄錛屽涓嬩緥涓墍紺猴細<br /> <br /> 涓涓摱琛屼腑鐨勫欏規椿鍔?br /> <br /> public class Account {<br /> String holderName;<br /> float amount;<br /> public Account(String name, float amt) {<br /> holderName = name;<br /> amount = amt;<br /> }<br /> public void deposit(float amt) {<br /> amount += amt;<br /> }<br /> public void withdraw(float amt) {<br /> amount -= amt;<br /> }<br /> public float checkBalance() {<br /> return amount;<br /> }<br /> }<br /> 鍦ㄦ浠g爜鏍蜂緥涓綔浼忕潃涓涓敊璇傚鏋滄綾葷敤浜庡崟綰跨▼搴旂敤紼嬪簭錛屼笉浼氭湁浠諱綍闂銆備絾鏄紝鍦ㄥ綰跨▼搴旂敤紼嬪簭鐨勬儏鍐典腑錛屼笉鍚岀殑綰跨▼灝辨湁鍙兘鍚屾椂璁塊棶鍚屼竴涓?Account 瀵硅薄錛屾瘮濡傝涓涓仈鍚堝笎鎴風殑鎵鏈夎呭湪涓嶅悓鐨?ATM 涓婂悓鏃惰繘琛岃闂傚湪榪欑鎯呭喌涓嬶紝瀛樺叆鍜屾敮鍑哄氨鍙兘浠ヨ繖鏍風殑鏂瑰紡鍙戠敓錛氫竴涓簨鍔¤鍙︿竴涓簨鍔¤鐩栥傝繖縐嶆儏鍐靛皢鏄伨闅炬х殑銆備絾鏄紝Java 緙栫▼璇█鎻愪緵浜嗕竴縐嶇畝鍗曠殑鏈哄埗鏉ラ槻姝㈠彂鐢熻繖縐嶈鐩栥傛瘡涓璞″湪榪愯鏃墮兘鏈変竴涓叧鑱旂殑閿併傝繖涓攣鍙氳繃涓烘柟娉曟坊鍔犲叧閿瓧 synchronized 鏉ヨ幏寰椼傝繖鏍鳳紝淇榪囩殑 Account 瀵硅薄(濡備笅鎵紺?灝嗕笉浼氶伃鍙楀儚鏁版嵁鎹熷潖榪欐牱鐨勯敊璇細<br /> <br /> 瀵逛竴涓摱琛屼腑鐨勫欏規椿鍔ㄨ繘琛屽悓姝ュ鐞?br /> <br /> public class Account {<br /> String holderName;<br /> float amount;<br /> public Account(String name, float amt) {<br /> holderName = name;<br /> amount = amt;<br /> }<br /> public synchronized void deposit(float amt) {<br /> amount += amt;<br /> }<br /> public synchronized void withdraw(float amt) {<br /> amount -= amt;<br /> }<br /> public float checkBalance() {<br /> return amount;<br /> }<br /> }<br /> <br /> deposit() 鍜?withdraw() 鍑芥暟閮介渶瑕佽繖涓攣鏉ヨ繘琛屾搷浣滐紝鎵浠ュ綋涓涓嚱鏁拌繍琛屾椂錛屽彟涓涓嚱鏁板氨琚樆濉炪傝娉ㄦ剰錛?checkBalance() 鏈綔鏇存敼錛屽畠涓ユ牸鏄竴涓鍑芥暟銆傚洜涓?checkBalance() 鏈綔鍚屾澶勭悊錛屾墍浠ヤ換浣曞叾浠栨柟娉曢兘涓嶄細闃誨瀹冿紝瀹冧篃涓嶄細闃誨浠諱綍鍏朵粬鏂規硶錛屼笉綆¢偅浜涙柟娉曟槸鍚﹁繘琛屼簡鍚屾澶勭悊銆?br /> <br /> Java 緙栫▼璇█涓殑楂樼駭澶氱嚎紼嬫敮鎸?br /> 綰跨▼緇?br /> <br /> 綰跨▼鏄涓埆鍒涘緩鐨勶紝浣嗗彲浠ュ皢瀹冧滑褰掔被鍒扮嚎紼嬬粍涓紝浠ヤ究浜庤皟璇曞拰鐩戣銆傚彧鑳藉湪鍒涘緩綰跨▼鐨勫悓鏃跺皢瀹冧笌涓涓嚎紼嬬粍鐩稿叧鑱斻傚湪浣跨敤澶ч噺綰跨▼鐨勭▼搴忎腑錛屼嬌鐢ㄧ嚎紼嬬粍緇勭粐綰跨▼鍙兘寰堟湁甯姪銆傚彲浠ュ皢瀹冧滑鐪嬩綔鏄綆楁満涓婄殑鐩綍鍜屾枃浠剁粨鏋勩?br /> <br /> 綰跨▼闂村彂淇?br /> <br /> 褰撶嚎紼嬪湪緇х畫鎵ц鍓嶉渶瑕佺瓑寰呬竴涓潯浠舵椂錛屼粎鏈?synchronized 鍏抽敭瀛楁槸涓嶅鐨勩傝櫧鐒?synchronized 鍏抽敭瀛楅樆姝㈠茍鍙戞洿鏂頒竴涓璞★紝浣嗗畠娌℃湁瀹炵幇綰跨▼闂村彂淇°侽bject 綾諱負姝ゆ彁渚涗簡涓変釜鍑芥暟錛歸ait()銆乶otify() 鍜?notifyAll()銆備互鍏ㄧ悆姘斿欓嫻嬬▼搴忎負渚嬨傝繖浜涚▼搴忛氳繃灝嗗湴鐞冨垎涓鴻澶氬崟鍏冿紝鍦ㄦ瘡涓驚鐜腑錛屾瘡涓崟鍏冪殑璁$畻閮芥槸闅旂榪涜鐨勶紝鐩村埌榪欎簺鍊艱秼浜庣ǔ瀹氾紝鐒跺悗鐩擱偦鍗曞厓涔嬮棿灝變細浜ゆ崲涓浜涙暟鎹傛墍浠ワ紝浠庢湰璐ㄤ笂璁詫紝鍦ㄦ瘡涓驚鐜腑鍚勪釜綰跨▼閮藉繀欏葷瓑寰呮墍鏈夌嚎紼嬪畬鎴愬悇鑷殑浠誨姟浠ュ悗鎵嶈兘榪涘叆涓嬩竴涓驚鐜傝繖涓ā鍨嬬О涓哄睆钄藉悓姝ワ紝涓嬩緥璇存槑浜嗚繖涓ā鍨嬶細<br /> <br /> 灞忚斀鍚屾<br /> public class BSync {<br /> int totalThreads;<br /> int currentThreads;<br /> public BSync(int x) {<br /> totalThreads = x;<br /> currentThreads = 0;<br /> }<br /> public synchronized void waitForAll() {<br /> currentThreads++;<br /> if(currentThreads < totalThreads) {<br /> try {<br /> wait();<br /> } catch (Exception e) {}<br /> }<br /> else {<br /> currentThreads = 0;<br /> notifyAll();<br /> }<br /> }<br /> }<br /> <br /> 褰撳涓涓嚎紼嬭皟鐢?wait() 鏃訛紝璇ョ嚎紼嬪氨琚湁鏁堥樆濉烇紝鍙埌鍙︿竴涓嚎紼嬪鍚屼竴涓璞¤皟鐢?notify() 鎴?notifyAll() 涓烘銆傚洜姝わ紝鍦ㄥ墠涓涓ず渚嬩腑錛屼笉鍚岀殑綰跨▼鍦ㄥ畬鎴愬畠浠殑宸ヤ綔浠ュ悗灝嗚皟鐢?waitForAll() 鍑芥暟錛屾渶鍚庝竴涓嚎紼嬪皢瑙﹀彂 notifyAll() 鍑芥暟錛岃鍑芥暟灝嗛噴鏀炬墍鏈夌殑綰跨▼銆傜涓変釜鍑芥暟 notify() 鍙氱煡涓涓鍦ㄧ瓑寰呯殑綰跨▼錛屽綋瀵規瘡嬈″彧鑳界敱涓涓嚎紼嬩嬌鐢ㄧ殑璧勬簮榪涜璁塊棶闄愬埗鏃訛紝榪欎釜鍑芥暟寰堟湁鐢ㄣ備絾鏄紝涓嶅彲鑳介鐭ュ摢涓嚎紼嬩細鑾峰緱榪欎釜閫氱煡錛屽洜涓鴻繖鍙栧喅浜?Java 铏氭嫙鏈?(JVM) 璋冨害綆楁硶銆?br /> <br /> 灝?CPU 璁╃粰鍙︿竴涓嚎紼?br /> <br /> 褰撶嚎紼嬫斁寮冩煇涓█鏈夌殑璧勬簮(濡傛暟鎹簱榪炴帴鎴栫綉緇滅鍙?鏃訛紝瀹冨彲鑳借皟鐢?yield() 鍑芥暟涓存椂闄嶄綆鑷繁鐨勪紭鍏堢駭錛屼互渚挎煇涓叾浠栫嚎紼嬭兘澶熻繍琛屻?br /> <br /> 瀹堟姢綰跨▼<br /> <br /> 鏈変袱綾葷嚎紼嬶細鐢ㄦ埛綰跨▼鍜屽畧鎶ょ嚎紼嬨傜敤鎴風嚎紼嬫槸閭d簺瀹屾垚鏈夌敤宸ヤ綔鐨勭嚎紼嬨?瀹堟姢綰跨▼鏄偅浜涗粎鎻愪緵杈呭姪鍔熻兘鐨勭嚎紼嬨俆hread 綾繪彁渚涗簡 setDaemon() 鍑芥暟銆侸ava 紼嬪簭灝嗚繍琛屽埌鎵鏈夌敤鎴風嚎紼嬬粓姝紝鐒跺悗瀹冨皢鐮村潖鎵鏈夌殑瀹堟姢綰跨▼銆傚湪 Java 铏氭嫙鏈?(JVM) 涓紝鍗充嬌鍦?main 緇撴潫浠ュ悗錛屽鏋滃彟涓涓敤鎴風嚎紼嬩粛鍦ㄨ繍琛岋紝鍒欑▼搴忎粛鐒跺彲浠ョ戶緇繍琛屻?br /> <br /> 閬垮厤涓嶆彁鍊′嬌鐢ㄧ殑鏂規硶<br /> 涓嶆彁鍊′嬌鐢ㄧ殑鏂規硶鏄負鏀寔鍚戝悗鍏煎鎬ц屼繚鐣欑殑閭d簺鏂規硶錛屽畠浠湪浠ュ悗鐨勭増鏈腑鍙兘鍑虹幇錛屼篃鍙兘涓嶅嚭鐜般侸ava 澶氱嚎紼嬫敮鎸佸湪鐗堟湰 1.1 鍜岀増鏈?1.2 涓仛浜嗛噸澶т慨璁紝stop()銆乻uspend() 鍜?resume() 鍑芥暟宸蹭笉鎻愬′嬌鐢ㄣ傝繖浜涘嚱鏁板湪 JVM 涓彲鑳藉紩鍏ュ井濡欑殑閿欒銆傝櫧鐒跺嚱鏁板悕鍙兘鍚搗鏉ュ緢璇變漢錛屼絾璇鋒姷鍒惰鎯戜笉瑕佷嬌鐢ㄥ畠浠?br /> <br /> 璋冭瘯綰跨▼鍖栫殑紼嬪簭<br /> <br /> 鍦ㄧ嚎紼嬪寲鐨勭▼搴忎腑錛屽彲鑳藉彂鐢熺殑鏌愪簺甯歌鑰岃鍘岀殑鎯呭喌鏄閿併佹椿閿併佸唴瀛樻崯鍧忓拰璧勬簮鑰楀敖銆?br /> <br /> 姝婚攣<br /> <br /> 姝婚攣鍙兘鏄綰跨▼紼嬪簭鏈甯歌鐨勯棶棰樸傚綋涓涓嚎紼嬮渶瑕佷竴涓祫婧愯屽彟涓涓嚎紼嬫寔鏈夎璧勬簮鐨勯攣鏃訛紝灝變細鍙戠敓姝婚攣銆傝繖縐嶆儏鍐甸氬父寰堥毦媯嫻嬨備絾鏄紝瑙e喅鏂規鍗寸浉褰撳ソ錛氬湪鎵鏈夌殑綰跨▼涓寜鐩稿悓鐨勬搴忚幏鍙栨墍鏈夎祫婧愰攣銆備緥濡傦紝濡傛灉鏈夊洓涓祫婧??A銆丅銆丆 鍜?D ? 騫朵笖涓涓嚎紼嬪彲鑳借鑾峰彇鍥涗釜璧勬簮涓換浣曚竴涓祫婧愮殑閿侊紝鍒欒紜繚鍦ㄨ幏鍙栧 B 鐨勯攣涔嬪墠棣栧厛鑾峰彇瀵?A 鐨勯攣錛屼緷姝ょ被鎺ㄣ傚鏋?#8220;綰跨▼ 1”甯屾湜鑾峰彇瀵?B 鍜?C 鐨勯攣錛岃?#8220;綰跨▼ 2”鑾峰彇浜?A銆丆 鍜?D 鐨勯攣錛屽垯榪欎竴鎶鏈彲鑳藉鑷撮樆濉烇紝浣嗗畠姘歌繙涓嶄細鍦ㄨ繖鍥涗釜閿佷笂閫犳垚姝婚攣銆?br /> <br /> 媧婚攣<br /> <br /> 褰撲竴涓嚎紼嬪繖浜庢帴鍙楁柊浠誨姟浠ヨ嚧瀹冩案榪滄病鏈夋満浼氬畬鎴愪換浣曚換鍔℃椂錛屽氨浼氬彂鐢熸椿閿併傝繖涓嚎紼嬫渶緇堝皢瓚呭嚭緙撳啿鍖哄茍瀵艱嚧紼嬪簭宕╂簝銆傝瘯鎯充竴涓涔﹂渶瑕佸綍鍏ヤ竴灝佷俊錛屼絾濂逛竴鐩村湪蹇欎簬鎺ョ數璇濓紝鎵浠ヨ繖灝佷俊姘歌繙涓嶄細琚綍鍏ャ?br /> <br /> 鍐呭瓨鎹熷潖<br /> <br /> 濡傛灉鏄庢櫤鍦頒嬌鐢?synchronized 鍏抽敭瀛楋紝鍒欏畬鍏ㄥ彲浠ラ伩鍏嶅唴瀛橀敊璇繖縐嶆皵姝諱漢鐨勯棶棰樸?br /> <br /> 璧勬簮鑰楀敖<br /> <br /> 鏌愪簺緋葷粺璧勬簮鏄湁闄愮殑錛屽鏂囦歡鎻忚堪絎︺傚綰跨▼紼嬪簭鍙兘鑰楀敖璧勬簮錛屽洜涓烘瘡涓嚎紼嬮兘鍙兘甯屾湜鏈変竴涓繖鏍風殑璧勬簮銆傚鏋滅嚎紼嬫暟鐩稿綋澶э紝鎴栬呮煇涓祫婧愮殑渚夌嚎紼嬫暟榪滆繙瓚呰繃浜嗗彲鐢ㄧ殑璧勬簮鏁幫紝鍒欐渶濂戒嬌鐢ㄨ祫婧愭睜銆備竴涓渶濂界殑紺轟緥鏄暟鎹簱榪炴帴姹犮傚彧瑕佺嚎紼嬮渶瑕佷嬌鐢ㄤ竴涓暟鎹簱榪炴帴錛屽畠灝變粠姹犱腑鍙栧嚭涓涓紝浣跨敤浠ュ悗鍐嶅皢瀹冭繑鍥炴睜涓傝祫婧愭睜涔熺О涓?璧勬簮搴撱?br /> <br /> 璋冭瘯澶ч噺鐨勭嚎紼?br /> <br /> 鏈夋椂涓涓▼搴忓洜涓烘湁澶ч噺鐨勭嚎紼嬪湪榪愯鑰屾瀬闅捐皟璇曘傚湪榪欑鎯呭喌涓嬶紝涓嬮潰鐨勮繖涓被鍙兘浼氭淳涓婄敤鍦猴細<br /> <br /> public class Probe extends Thread {<br /> public Probe() {}<br /> public void run() {<br /> while(true) {<br /> Thread[] x = new Thread[100];<br /> Thread.enumerate(x);<br /> for(int i=0; i<100; i++) {<br /> Thread t = x[i];<br /> if(t == null)<br /> break;<br /> else<br /> System.out.println(t.getName() + “\t” + t.getPriority()<br /> + “\t” + t.isAlive() + “\t” + t.isDaemon());<br /> }<br /> }<br /> }<br /> }<br /> <br /> 闄愬埗綰跨▼浼樺厛綰у拰璋冨害<br /> <br /> Java 綰跨▼妯″瀷娑夊強鍙互鍔ㄦ佹洿鏀圭殑綰跨▼浼樺厛綰с傛湰璐ㄤ笂錛岀嚎紼嬬殑浼樺厛綰ф槸浠?1 鍒?10 涔嬮棿鐨勪竴涓暟瀛楋紝鏁板瓧瓚婂ぇ琛ㄦ槑浠誨姟瓚婄揣鎬ャ侸VM 鏍囧噯棣栧厛璋冪敤浼樺厛綰ц緝楂樼殑綰跨▼錛岀劧鍚庢墠璋冪敤浼樺厛綰ц緝浣庣殑綰跨▼銆備絾鏄紝璇ユ爣鍑嗗鍏鋒湁鐩稿悓浼樺厛綰х殑綰跨▼鐨勫鐞嗘槸闅忔満鐨勩傚浣曞鐞嗚繖浜涚嚎紼嬪彇鍐充簬鍩哄眰鐨勬搷浣滅郴緇熺瓥鐣ャ傚湪鏌愪簺鎯呭喌涓嬶紝浼樺厛綰х浉鍚岀殑綰跨▼鍒嗘椂榪愯; 鍦ㄥ彟涓浜涙儏鍐典笅錛岀嚎紼嬪皢涓鐩磋繍琛屽埌緇撴潫銆傝璁頒綇錛孞ava 鏀寔 10 涓紭鍏堢駭錛屽熀灞傛搷浣滅郴緇熸敮鎸佺殑浼樺厛綰у彲鑳借灝戝緱澶氾紝榪欐牱浼氶犳垚涓浜涙販涔便傚洜姝わ紝鍙兘灝嗕紭鍏堢駭浣滀負涓縐嶅緢綺楃暐鐨勫伐鍏蜂嬌鐢ㄣ傛渶鍚庣殑鎺у埗鍙互閫氳繃鏄庢櫤鍦頒嬌鐢?yield() 鍑芥暟鏉ュ畬鎴愩傞氬父鎯呭喌涓嬶紝璇蜂笉瑕佷緷闈犵嚎紼嬩紭鍏堢駭鏉ユ帶鍒剁嚎紼嬬殑鐘舵併? <img src ="http://www.tkk7.com/oracle/aggbug/299116.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.tkk7.com/oracle/" target="_blank">閫嶉仴鏅ㄧ┖</a> 2009-10-21 00:06 <a href="http://www.tkk7.com/oracle/archive/2009/10/21/299116.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 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