JavaỊ̈߳ºÏ̵߳Äͬ²½ ͬ²½·½·¨
JavaỊ̈߳ºÏ̵߳Äͬ²½-ͬ²½·½·¨
Ï̵߳Äͬ²½ÊDZ£Ö¤¶àḬ̈߳²È«·ÃÎʾºÕù×ÊÔ´µÄÒ»ÖÖÊֶΡ£
Ï̵߳Äͬ²½ÊÇJava¶àÏ̱߳à³ÌµÄÄѵ㣬ÍùÍù¿ª·¢Õ߸㲻Çå³þʲôÊǾºÕù×ÊÔ´¡¢Ê²Ã´Ê±ºòÐèÒª¿¼ÂÇͬ²½£¬Ôõôͬ²½µÈµÈÎÊÌ⣬µ±È»£¬ÕâЩÎÊÌâûÓкÜÃ÷È·µÄ´ð°¸£¬µ«ÓÐЩÔÔòÎÊÌâÐèÒª¿¼ÂÇ£¬ÊÇ·ñÓоºÕù×ÊÔ´±»Í¬Ê±¸Ä¶¯µÄÎÊÌ⣿
ÔÚ±¾ÎÄ֮ǰ£¬Çë²ÎÔÄ¡¶JavaỊ̈߳ºÏ̵߳Äͬ²½ÓëËø¡·£¬±¾ÎÄÊÇÔÚ´Ë»ù´¡ÉÏËùдµÄ¡£
¶ÔÓÚͬ²½£¬ÔÚ¾ßÌåµÄJava´úÂëÖÐÐèÒªÍê³ÉÒ»ÏÂÁ½¸ö²Ù×÷£º
°Ñ¾ºÕù·ÃÎʵÄ×ÊÔ´±êʶΪprivate£»
ͬ²½ÄÄЩÐ޸ıäÁ¿µÄ´úÂ룬ʹÓÃsynchronized¹Ø¼ü×Öͬ²½·½·¨»ò´úÂë¡£
µ±È»Õâ²»ÊÇΨһ¿ØÖƲ¢·¢°²È«µÄ;¾¶¡£
synchronized¹Ø¼ü×ÖʹÓÃ˵Ã÷
synchronizedÖ»Äܱê¼Ç·Ç³éÏóµÄ·½·¨£¬²»Äܱêʶ³ÉÔ±±äÁ¿¡£
ΪÁËÑÝʾͬ²½·½·¨µÄʹÓ㬹¹½¨ÁËÒ»¸öÐÅÓÿ¨ÕË»§£¬Æð³õÐÅÓöîΪ100w£¬È»ºóÄ£Äâ͸֧¡¢´æ¿îµÈ¶à¸ö²Ù×÷¡£ÏÔÈ»ÒøÐÐÕË»§User¶ÔÏóÊǸö¾ºÕù×ÊÔ´£¬¶ø¶à¸ö²¢·¢²Ù×÷µÄÊÇÕË»§·½·¨oper(int x)£¬µ±È»Ó¦¸ÃÔÚ´Ë·½·¨ÉϼÓÉÏͬ²½£¬²¢½«ÕË»§µÄÓà¶îÉèΪ˽ÓбäÁ¿£¬½ûÖ¹Ö±½Ó·ÃÎÊ¡£
/**
* JavaỊ̈߳ºÏ̵߳Äͬ²½
*
* @author leizhimin 2009-11-4 11:23:32
*/
public class Test {
public static void main(String[] args) {
User u = new User("ÕÅÈý", 100);
MyThread t1 = new MyThread("Ïß³ÌA", u, 20);
MyThread t2 = new MyThread("Ïß³ÌB", u, -60);
MyThread t3 = new MyThread("Ïß³ÌC", u, -80);
MyThread t4 = new MyThread("Ïß³ÌD", u, -30);
MyThread t5 = new MyThread("Ïß³ÌE", u, 32);
&nbs
Ïà¹ØÎĵµ£º
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class JavaBasic {
public static void main(String[] args){
StringBuffer sd = new StringBuffer();
String hhhString="adlkll";
&nbs ......
ÓÃÔÚ¶àỊ̈߳¬Í¬²½±äÁ¿¡£ Ïß³ÌΪÁËÌá¸ßЧÂÊ£¬½«Ä³³ÉÔ±±äÁ¿(ÈçA)¿½±´ÁËÒ»·Ý£¨ÈçB£©£¬Ïß³ÌÖжÔAµÄ·ÃÎÊÆäʵ·ÃÎʵÄÊÇB¡£Ö»ÔÚijЩ¶¯×÷ʱ²Å½øÐÐAºÍBµÄͬ²½¡£Òò´Ë´æÔÚAºÍB²»Ò»ÖµÄÇé¿ö¡£volatile¾ÍÊÇÓÃÀ´±ÜÃâÕâÖÖÇé¿öµÄ¡£volatile¸æËßjvm£¬ ËüËùÐÞÊεıäÁ¿²»±£Áô¿½±´£¬Ö±½Ó·ÃÎÊÖ÷ÄÚ´æÖеģ¨Ò²¾ÍÊÇÉÏÃæ˵µÄA)
===================== ......
´ò¿ªeclipse£¬·¢ÏÖeclipseå´µôÁË£¬²¢ÇÒ³öÏÖÕâÑùµÄÌáʾ£º¹ØÓÚInitializing java tooling£¨1%£©...
ÖØÆôÁ˼¸´ÎÖ®ºó·¢ÏÖÎÊÌâÈÔÈ»´æÔÚ£¬Òò¶ø¿ñËÑÁËÒ»°Ñ£¬ÖÕÓÚÕÒµ½ÕýÈ·µÄ½â¾ö°ì·¨£¬ÈçÏ£º
ÕÒµ½eclipseĿ¼£¬±à¼eclipse.iniÎļþ£¬ÔÚ-vmargs²ÎÊý֮ǰÌí¼ÓÉÏÈçϲÎÊý£¨Ò»¶¨ÒªÏñÏÂÃæÕâÑùд³ÉÁ½ÐУ©£¬È»ºóÖØÆô¾ÍokÁË
-vm
C:\Progr ......
JavaỊ̈߳º¸ÅÄîÓëÔÀí
SCJP5ѧϰ±Ê¼Ç
Ò»¡¢²Ù×÷ϵͳÖÐÏ̺߳ͽø³ÌµÄ¸ÅÄî
ÏÖÔڵIJÙ×÷ϵͳÊǶàÈÎÎñ²Ù×÷ϵͳ¡£¶àÏß³ÌÊÇʵÏÖ¶àÈÎÎñµÄÒ»ÖÖ·½Ê½¡£
½ø³ÌÊÇÖ¸Ò»¸öÄÚ´æÖÐÔËÐеÄÓ¦ÓóÌÐò£¬Ã¿¸ö½ø³Ì¶¼ÓÐ×Ô¼º¶ÀÁ¢µÄÒ»¿éÄÚ´æ¿Õ¼ä£¬Ò»¸ö½ø³ÌÖпÉÒÔÆô¶¯¶à¸öÏ̡߳£±ÈÈçÔÚWindowsϵͳÖУ¬Ò»¸öÔËÐеÄexe¾ÍÊÇÒ»¸ö½ø³Ì¡£
&nb ......
JavaỊ̈߳ºÏß³ÌջģÐÍÓëÏ̵߳ıäÁ¿
SCJP5ѧϰ±Ê¼Ç
ÒªÀí½âÏ̵߳÷¶ÈµÄÔÀí£¬ÒÔ¼°Ïß³ÌÖ´Ðйý³Ì£¬±ØÐëÀí½âÏß³ÌջģÐÍ¡£
Ïß³ÌÕ»ÊÇָijʱ¿ÌʱÄÚ´æÖÐÏ̵߳÷¶ÈµÄÕ»ÐÅÏ¢£¬µ±Ç°µ÷Óõķ½·¨×ÜÊÇλÓÚÕ»¶¥¡£Ïß³ÌÕ»µÄÄÚÈÝÊÇËæ×ųÌÐòµÄÔËÐж¯Ì¬±ä»¯µÄ£¬Òò´ËÑо¿Ïß³ÌÕ»±ØÐëÑ¡ÔñÒ»¸öÔËÐеÄʱ¿Ì£¨Êµ¼ÊÉÏÖ¸´úÂëÔËÐе½Ê²Ã´µØ· ......