×î´ó³Ë»ýµÄN 1ÏֻÓó˷¨²»ÄÜÓó˷¨ (Java)ʵÏÖ
package algorithm.misc;
import util.*;
public class MaxProductOfN1 {
private static int exceptIndex = -1;
public static long regMethod(int data[])
{
long ret = Long.MIN_VALUE;
long tmp = 1;
for(int i = 0; i < data.length; i++)
{
tmp = 1;
for(int j = 0; j < data.length; j++)
{
if(j != i)
{
tmp *= data[j];
}
}
if(tmp > ret)
{
ret = tmp;
exceptIndex = i;
}
}
return ret;
}
public static long dp(int data[])
{
long ascent[] = new long[data.length + 1];
ascent[0] = 1;
for(int i = 0; i < data.length; i++)
&nbs
Ïà¹ØÎĵµ£º
Java NIO APIÏê½â
ÔÚJDK
1.4ÒÔǰ£¬JavaµÄIO²Ù×÷¼¯ÖÐÔÚjava.ioÕâ¸ö°üÖУ¬ÊÇ»ùÓÚÁ÷µÄ×èÈû£¨blocking£©API¡£¶ÔÓÚ´ó¶àÊýÓ¦ÓÃÀ´Ëµ£¬ÕâÑùµÄAPIʹÓúܷ½
±ã£¬È»¶ø£¬Ò»Ð©¶ÔÐÔÄÜÒªÇó½Ï¸ßµÄÓ¦Óã¬ÓÈÆäÊÇ·þÎñ¶ËÓ¦Óã¬ÍùÍùÐèÒªÒ»¸ö¸üΪÓÐЧµÄ·½Ê½À´´¦ÀíIO¡£´ÓJDK 1.4Æð£¬NIO
API×÷Ϊһ¸ö»ùÓÚ»º³åÇø£¬²¢ÄÜÌṩ·Ç×èÈû(non-blo ......
JVM£º¼ÓÔØ¡¢Á´½ÓºÍ³õʼ»¯
JVMÒª½âÊÍJava×Ö½ÚÂ룬¾Í±ØÐë¶ÔËùÐèµÄÀàºÍ½Ó¿ÚÖ´ÐÐÈçÏÂ3²½²Ù×÷£º
(1) ¼ÓÔØ£ºJVMÔÚ¼ÓÔØÀàʱ£¬»á²éÕÒ¸ÃÀà»ò¸Ã½Ó¿ÚµÄ¶þ½øÖƱíʾ£¬²¢¸ù¾ÝÕÒµ½µÄ¶þ½øÖƱíʾ(ͨ³£ÊÇÓÉJava±àÒëÆ÷´´½¨µÄÀàÎļþ)´´½¨Ò»¸öClass¶ÔÏ󡣸ÃClass¶ÔÏóÖзâ×°ÁËÀà»ò½Ó¿ÚµÄÔËÐÐʱ״̬¡£
(2) Á´½Ó£ºÁ´½ÓÕâÒ»¹ý³ÌÊÇָȡµÃÒѼÓÔØµÄ ......
Line.javaÎļþ-------Çý¶¯Àà
import javax.swing.JFrame;
public class Line
{
public static void main(String[] arg)
{
JFrame frame=new JFrame("Draw lines");
frame.setDefaultCloseOperation(JFrame.EX ......
Java»ù´¡-ѧϰʹÓÃAnnotation×¢½â¶ÔÏó
×¢½â(Ò²±»³ÆÎªÔªÊý¾Ý)ΪÎÒÃÇÔÚ´úÂëÖÐÌí¼ÓÐÅÏ¢ÌṩÁËÒ»ÖÖÐÎʽ»¯µÄ·½·¨,ʹÎÒÃÇ¿ÉÒÔÔÚÉÔºóij
¸öʱ¿Ì·Ç³£·½±ãµØÊ¹ÓÃÕâЩÊý¾Ý
1-1:»ù±¾Óï·¨
Java SE5ÄÚÖÃÈýÖÖ±ê×¼×¢½â
@Override:±íʾµ±Ç°µÄ·½·¨¶¨Ò彫¸²¸Ç³¬ÀàÖеķ½·¨.Èç¹ûÄ㲻СÐÄÆ´Ð´´íÎó,»òÕß·½·¨Ç©Ãû¶Ô²»Éϱ»¸²
¸ÇµÄ·½·¨ ......
JDK 5.0 ÖÐÔö¼ÓµÄ·ºÐÍÀàÐÍ£¬ÊÇ Java ÓïÑÔÖÐÀàÐͰ²È«µÄÒ»´ÎÖØÒª¸Ä½ø¡£µ«ÊÇ£¬¶ÔÓÚ³õ´ÎʹÓ÷ºÐÍÀàÐ͵ÄÓû§À´Ëµ£¬·ºÐ͵ÄijЩ·½Ãæ¿´ÆðÀ´¿ÉÄܲ»ÈÝÒ×Ã÷°×£¬ÉõÖÁ·Ç³£Ææ¹Ö¡£ÔÚ±¾ÔµēJava ÀíÂÛºÍʵ¼ù”ÖУ¬Brian Goetz ·ÖÎöÁËÊø¸¿µÚÒ»´ÎʹÓ÷ºÐ͵ÄÓû§µÄ³£¼ûÏÝÚå¡£Äú¿ÉÒÔͨ¹ýÌÖÂÛÂÛ̳Óë×÷ÕßºÍÆäËû¶ÁÕß·ÖÏíÄú¶Ô±¾ÎĵĿ´·¨¡ ......