²ËÄñÈëÃÅ£ºJava³ÌÐòԱѧϰ֮·
1. JavaÓïÑÔ»ù´¡
̸µ½JavaÓïÑÔ»ù´¡Ñ§Ï°µÄÊé¼®£¬´ó¼Ò¿Ï¶¨»áÍÆ¼öBruce EckelµÄ¡¶Thinking in Java¡·¡£ËüÊÇÒ»±¾Ð´µÄÏ൱Éî¿ÌµÄ¼¼ÊõÊé¼®£¬JavaÓïÑÔ»ù´¡²¿·Ö»ù±¾Ã»ÓÐÆäËüÈκÎÒ»±¾Êé¿ÉÒÔ³¬Ô½Ëü¡£¸ÃÊéµÄ×÷ÕßBruce EckelÔÚÍøÂçÉϱ»³ÆÎªÌì²ÅµÄͶ»úÕߣ¬×÷Õߵġ¶Thinking in C++¡·ÔÚ1995ÄêÔø»ñSoftwareDevelopment Jolt Award×î¼ÑÊé¼®´ó½±£¬¡¶Thinking in Java¡·±»ÆÀΪ1999ÄêJava World“×î°®¶ÁÕß»¶ÓͼÊ锣¬²¢ÇÒÓ®µÃÁ˱à¼Ê×ѡͼÊé½±¡£×÷Õß´Ó1986ÄêÖÁ½ñ£¬ÒѾ·¢±íÁ˳¬¹ý150ƪ¼ÆËã»ú¼¼ÊõÎÄÕ£¬³ö°æÁË6±¾Ê飨ÆäÖÐ4±¾ÊǹØÓÚC++µÄ£©£¬²¢ÇÒÔÚÈ«ÊÀ½ç×öÁËÊý°Ù´ÎÑݽ²¡£ËûÊÇ¡¶Thinking in Java¡·¡¢¡¶Thinking in C++¡·¡¢¡¶C++ Inside & Out¡·¡¶Using C++¡·ºÍ¡¶Thinking in Patterns¡·µÄ×÷Õߣ¬Í¬Ê±»¹ÊÇ¡¶Black Belt C++¡·Îļ¯µÄ±à¼¡£ËûµÄÊé±»¶ÁÕß³ÆÎª“×îºÃµÄJava²Î¿¼Êé……¾ø¶ÔÈÃÈËÕ𾪔£º“¹ºÂòJava²Î¿¼Êé×îÃ÷ÖǵÄÑ¡Ôñ”£º“ÎÒ¼û¹ýµÄ×î°ôµÄ±à³ÌÖ¸ÄÏ”¡£×÷ÕߵķǷ²²Å»ª£¬¼«Æä¿çÔ½ÓïÑÔµÄÄÜÁ¦£¬Ê¹×÷Õß±»Ñ¡ÎªJava·¢Õ¹10Äê¼äÓëJava¹ØÏµ×îÃÜÇеÄ10¸öÈËÎïÖ®Ò»¡£
¡¶Thinking in Java¡·½²ÊöÁËJavaÓïÑԵķ½·½ÃæÃ棬ºÜ¶àJavaÓïÑÔµÄÀÏÊÖ¶¼ÆÀ¼Û“ÕâÊÇÒ»±¾½«JavaÓïÑÔ½²µÃÏ൱³óªµÄÊ锡£¸ÃÊé̸¼°ÁËjavaÓïÑԵĺܶàϸ½Ú£¬Ã¿Ò»¸ö·½Ãæ¶¼ÊÇÏ൱Éî¿ÌµÄ¡£Í¨¹ý±¾ÊéÄã¿ÉÒÔ¿´µ½“³óªµÄ”javaÓïÑÔ¡£
ÍøÂçÉϹØÓÚjavaÓïÑÔ½²½âµÄÊÓÆµºÜ¶àºÜ¶à£¬ÆäÖв»·²ÓÐÀ¬»ø¡£¡¶ÎÌâý—JAVAÓïÑÔ¡·¿ÉÄÜÊÇÄãѧϰjavaÓïÑÔ»ù´¡µÄΨһѡÔñ£¬¸Ã½²×ù»ù±¾°´ÕÕ¡¶Thinking in Java¡·Õâ±¾Êé½²½â£¬ÆäÖв»·²ÓÐÎÌÀÏʦµÄºÜ¶àÓÐÒâ˼µÄЦ»°¡£ÎÒºÜÐÒÔËѧϰ¾ÍÊÇ´Ó´ËÊÓÆµ¿ªÊ¼µÄ¡£ÄÚÈݰüÀ¨30½²£¬ÎÒ×ܹ²¿´ÁË3±é¡£
²»¹ý£¬¶ÔÓÚ³õѧÕßÎÒ²»Ì«ÍƼöʹÓá¶Thinking in Java¡·£¬ÎұȽÏÍÆ¼öPrentice Hall PTR µÄ¡¶Core Java 2¡·¹úÄÚ³ÆÎª¡¶Java 2 ºËÐļ¼Êõ¡·£¬Ä¿Ç°ÊÇµÚÆß°æ¡£ÍøÂçÉÏ´ó¼Ò¶¼¿ÉÒÔÏÂÔØµ½µç×Ó°æ¡£OreillyµÄ¡¶Java in a nutshell¡·Ò²ÊÇÒ»¸ö²»´íµÄÑ¡Ôñ¡£¶ÁÍêÒÔÉÏÁ½±¾ºó£¬Äã¿ÉÒÔ¿´¿´ÎÌâýÀÏʦµÄÊÓÆµ£¬½Ó×Å¿ÉÒÔÑо¿¡¶Thinking in Java¡·ÁË¡£
2. JavaÊý¾Ý½á¹¹
ÊÐÃæÉϹØÓÚJavaÊý¾Ý½á¹¹µÄÊé±¾Éí¾ÍºÜÉÙºÜÉÙ¡£´óÖÂÓÐAPress µÄ¡¶Java Collections¡·£¬Jones ºÍBartlett µÄ¡¶Data Structures in Java¡·¡¢¡¶Object-oriented Dat
Ïà¹ØÎĵµ£º
Ôڳɹ¦ÊµÏÖJavaµ÷ÓÃC++Ö®ºó£¬½ÓÏÂÀ´Ïëµ½ÄÜ·ñͨ¹ýJNAʵÏÖJavaµ÷ÓÃFortran£¬½ñÌìÊÔÑéÁËһϣ¬»¹ÊDZȽÏÈÝÒ׵ġ£
ÍøÉÏÓÐÒ»¸öJavaµ÷ÓÃF95µÄÀý×Ó£¬µ«ÊÇÎÒ¿¼ÂDz»½öҪʵÏÖF95µÄµ÷Ó㬻¹ÒªÊµÏÖF77µÄµ÷Óã¬ËùÒÔ·ÑÁËһЩÖÜÕÛ¡£
ÎÊÌâµÄ¹Ø¼üÔÚÓÚF77Ϊ¹ý³ÌÃû×Ô¶¯Ìí¼ÓÁËÒ»¸öβ²¿µÄÏ»®Ïߣ¬ËùÒÔsub1Õâ¸ö¹ý³Ì£¬µ½JavaÒ»¶Ë£¬¾Í±ä³ÉÁËsub1_£¬ ......
Java´úÂë
long startTime=System.currentTimeMillis(); //»ñÈ¡¿ªÊ¼Ê±¼ä
doSomeThing(); //²âÊԵĴúÂë¶Î
long endTime=System.currentTimeMillis(); //»ñÈ¡½áÊøÊ±¼ä
System.out.println("³ÌÐòÔËÐÐʱ¼ä£º "+(endTime-startTime)+"ms");
µÚ¶þÖÖÊÇÒÔÄÉÃëΪ ......
ÇëÌṩһ¸ö¶ÔiµÄÉùÃ÷£¬½«ÏÂÃæµÄÑ»·×ª±äΪһ¸öÎÞÏÞÑ»·£º
while (i != 0) {
i >>>= 1;
}
»ØÏëһϣ¬>>>=ÊǶÔÓ¦ÓÚÎÞ·ûºÅÓÒÒÆ²Ù×÷·ûµÄ¸³Öµ²Ù×÷·û¡£0±»´Ó×óÒÆÈëµ½ÓÉÒÆÎ»²Ù×÷¶ø¿Õ³öÀ´µÄλÉÏ£¬¼´Ê¹±»ÒÆÎ»µÄ¸ºÊýÒ²ÊÇÈç´Ë¡£
Õâ¸öÑ»·±ÈÇ°ÃæÈý¸öÑ»·ÒªÉÔ΢¸´ÔÓÒ»µã£¬ÒòΪÆäÑ»·Ìå·Ç¿Õ¡£ÔÚÆäÑ»·ÌâÖУ¬ ......
ÇëÌṩһ¸ö¶ÔiµÄÉùÃ÷£¬½«ÏÂÃæµÄÑ»·×ª±äΪһ¸öÎÞÏÞÑ»·¡£Õâ¸öÑ»·²»ÐèҪʹÓÃÈκÎ5.0°æµÄÌØÐÔ£º
while (i != 0 && i == -i) {
}
ÕâÈÔÈ»ÊÇÒ»¸öÑ»·¡£ÔÚ²¼¶û±í´ïʽ(i != 0 && i == -i)ÖУ¬Ò»Ôª¼õºÅ²Ù×÷·û×÷ÓÃÓÚi£¬ÕâÒâζ×ÅËüµÄÀàÐͱØÐëÊÇÊý×ÖÐ͵ģºÒ»Ôª¼õºÅ²Ù×÷·û×÷ÓÃÓÚÒ»¸ö·ÇÊý×ÖÐͲÙ×÷ÊýÊÇ·Ç·¨µÄ¡£Òò´Ë£ ......
ÏÂÃæÕâ¸ö¿ÉÁ¯µÄС³ÌÐò²¢²»ÄܺܺõØ×ö³öÆä×Ô¼ºµÄ¾ö¶¨¡£ËüµÄdecision·½·¨½«·µ»Øtrue£¬µ«ÊÇËü»¹·µ»ØÁËfalse¡£ÄÇô£¬Ëüµ½µ×´òÓ¡µÄÊÇÊ²Ã´ÄØ£¿ÉõÖÁ£¬ËüÊǺϷ¨µÄÂð£¿
public class Indecisive {
public static void main(String[] args) {
System.out.println(decision());
}
static boolean decision( ......