ºÍjavaÏß³ÌÓйØ
ÓÐÕâÑùÒ»¸öÐèÇó£º ÓÐa()ºÍb()Á½¸ö·½·¨¡£ дһ¸öỊ̈߳¬ÒªÇóµ÷ÓÃa()·½·¨µÄ¼¸ÃëÖֺ󣬵÷ÓÃb()·½·¨¡£ ÆäÖÐa()·½·¨ÊÇÒ»¸öÑ»·Ì塾while(true)¡¿£¬Ò²¾ÍÊÇÒ»¸öËÀÑ»·¡£b()·½·¨Ò²ÊÇһѻ·Ì壨ͬa()·½·¨£©¡£ ÎÒ¿´ÁËtimerÀ࣬¿ÉºÃÏó²»ÐС£ÈçºÎʵÏÖÕâ¸öÐèÇó£¿
Ò²¾ÍÊÇ˵£¬µ±µ÷ÓÃb()ʱ£¬a()²¢Ã»ÓÐÍ£Ö¹£¬¶øÊǼÌÐøÔËÐС£ ÄãÐèÒªÔÚµ÷ÓÃbº¯ÊýʱÔÙÆðÒ»¸öÏ̡߳£ÓÃThread »òÕßRunnable ÊÇÓеã¾À½á sleep²»ÐÐѽ ÒýÓà ÄãÐèÒªÔÚµ÷ÓÃbº¯ÊýʱÔÙÆðÒ»¸öÏ̡߳£ÓÃThread »òÕßRunnable Íü¼Ç˵ÁË£¬a()ºÍb()ÊÇAÀàºÍBÀàÀïµÄÁ½¸ö·½·¨¡£A¡¢BÁ½¸öÀà±¾Éí¾Í¼Ì³Ð×ÔThreadÀà¡£¡£¡£Çë¸ø³ö¾ßÌåµÄ·½·¨£¬Ð»Ð»£¡£¡ ÓÃÒ»¸öÏß³Ì×÷Ϊ¿ØÖÆỊ̈߳¬¿ØÖƶÔa(),b()µÄµ÷ÓÃ(ÒÔǰÕâô×ö¹ý) ÔÚa()ÖÐдThread.sheep(1000)!È»ºóÔÙµ÷ÓÃb() !²»¾ÍOKÁËÒýÓà ÔÚa()ÖÐдThread.sheep(1000)!È»ºóÔÙµ÷ÓÃb() !²»¾ÍOKÁË ºÃÏñÊÇÕâ¸öÒâ˼£¬£¬Â¥×¡ÔõôÎÊÕâô¼òµ¥µÄÎÊÌâ°¡£¿ Java code: class A extends Thread { void a(){ while(true) { synchronized(Main.lock){ while(Main.state != Main.A_RUNNING) Main.lock.wait(); } //do sth here } } public void run(){ a(); } }; class B extends Thread { void b(){ while(true) {
Ïà¹ØÎÊ´ð£º
²»ÖªµÀÊÇʲôÔÒò£¬ÎÒ¸ÃÈçºÎ´¦Àí£¬Çë´óϺÃÇÖ¸½ÌÁË£¬Ð¡µÜÔÚ´Ëл¹ý¡£¡£¡£¡£ ´íÎóÐÅÏ¢ÈçÏ£º The program being debugged was signaled while in a function called from GDB. GDB has restored the context t ......
ÏÖÔÚ»¹ÓкܶàÈ˸㲻¶®PHPºÍJAVA¿ª·¢µÄÐͬOAµ½µ×ÓÐʲô²»Í¬£¬¶Ô×Ô¼ºµ½µ×ÓÐʲôӰÏ죬ÒÔÖÁÓÚ×ö³öÁË´íÎóµÄÑ¡Ôñ¶øêݺ¦ÎÞÇî¡£±ÊÕ߸ù¾ÝÁ½ÖÖ¼¼ÊõµÄÌØµãÖØÐÂÕûÀíÁËÒ»¸ö¶Ô±È£¬¸ø¹ØÐÄÐͬOA¼¼ÊõµÄ¶ÁÕß×ö¸ö²Î¿¼¡£ »ªÌ춯Á¦Ð ......
jspѧϰǰҪÁ˽âÄÇЩ֪ʶ£¿Ñ§ÁËjavaÁË¡£²»ÖªµÀ»¹ÒªÑ§Ï°Ð©Ê²Ã´ÖªÊ¶²Å¿ÉÒԺܺõÄѧϰjsp HTML¡¢JavaScript Ö±½Óѧ¾Í¿ÉÒÔÁË£¬Óöµ½²»»á¾ÍÏÖѧ¾ÍÐС£ Html css servlet È¥Á˽âä¯ÀÀÆ÷Óëweb·þÎñÆ÷µÄ¼òµ¥½» ......
ÎÒÏëʹÓÃLuceneµÄ´úÂ룬·¢ÏÖÒªimportÒ»ÅúÎļþ£º ============ import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.document.Document; ¡¡¡¡¡¡ ===== ......
1 public class BirthDate { 2 private int day; 3 private int month; 4 private int year; 5 6 public BirthDate (){} 7 8 public BirthDate (int d,int m,int y){ 9 day = d; ......