java_Ñ¡ÔñÅÅÐò·¨
Java ʵÏÖµÄÑ¡ÔñÅÅÐò·¨£¬ÏÈÔÚNetbeansÀïµ÷ÊÔÔËÐÐÁËһϣ¬È»ºóÓÖÔÚEclipseÁËÔËÐÐÁËһϡ£
public class ArraySort {
public static void main(String[] args) {
int Arrays[]={50,45,2,678,90,40,};
int i,j,temp,min;
int len=Arrays.length
;
System.out.println("before sort");
for(i=0;i<len;i++)
{ System.out.print(" "+Arrays[i]);
}
for(i=0;i<len;i++)
{min=i;
for(j=i+1;j<len;j++)
{if(Arrays[min]>Arrays[j])
{min=j;}
}
if(i!=min)
{temp=Arrays[i];
Arrays[i]=Arrays[min];
Arrays[min]=temp;
}
}
System.out.println("");
System.out.println("after sort");
for(i=0;i<len;i++)
{
System.out.print(" "+Arrays[i]);
}
}
}
ÔËÐнá¹ûÈçÏÂ
run£º
before sort
50 45 2 678 90 40
after sort
2 40 45 50 90 678³É¹¦Éú³É£¨×Üʱ¼ä£º0 Ã룩
---------¼á³Öjavaµ½µ×
Ïà¹ØÎĵµ£º
×ܽáÒ»£º
Java IOµÄÒ»°ãʹÓÃÔÔò£º
Ò»¡¢°´Êý¾ÝÀ´Ô´£¨È¥Ïò£©·ÖÀࣺ
1¡¢ÊÇÎļþ£º FileInputStream, FileOutputStream, FileReader, FileWriter
2¡¢ÊÇbyte[]£ºByteArrayInputStream, ByteArrayOutputStream
3¡¢ÊÇChar[]: CharArrayReader, CharArrayWriter
4¡¢ÊÇString: StringBufferInputStream, StringReader, StringW ......
JTA(Java Transaction API)
2008-07-31 10:20
Ò»°ãÇé¿öÏ£¬J2EEÓ¦Ó÷þÎñÆ÷Ö§³ÖJDBCÊÂÎñ¡¢JTAÊÂÎñ¡¢ÈÝÆ÷¹ÜÀíÊÂÎñ¡£ÕâÀïÌÖÂÛJTAºÍJDBCÊÂÎñµÄÇø±ð¡£Õâ2¸öÊdz£ÓõÄDAOģʽÊÂÎñ½ç¶¨·½Ê½¡£
JDBC ÊÂÎñ
JDBC ÊÂÎñÊÇÓà Connection ¶ÔÏó¿ØÖƵġ£JDBC Connection ½Ó¿Ú( java.sql.Connection )ÌṩÁËÁ½ÖÖÊÂÎñģʽ£º×Ô¶¯Ìá½»ºÍÊÖ¹¤Ìá ......
package test;
import java.io.File;
import org.jivesoftware.smack.Chat;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.MessageListener;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack ......
boolean java.lang.Object.equals(Object obj)
Indicates whether some other
object is "equal to" this one.
The equals method implements an
equivalence relation on non-null object references:
It is reflexive: for
any non-null reference value x, x.equals(x) should return true.
It ......
ÎÄÕÂת×Ô:http://www.javaeye.com/topic/31742
---------------------------------------------------
ÂÒÂë¶ÔÓÚʹÓ÷ÇÓ¢ÓïÎÄ×Ö³ÌÐòÔ±»ù±¾ÉÏÊÇÒ»Ö±²øÈÆÔÚÉí±ßµÄÂ鷳ʣ¬Õâ¸öËÒ²±ÜÃâ²»ÁË¡£ÏÂÃæÊÇÎÒ½â¾öÂÒÂëʱºòµÄÒ»µãС¾Ñé¡£»¶ÓÖ¸Õý
Ò»¡¢±ÜÃâÂÒÂëµÄһЩעÒâµã£º
1.¾¡Á¿Ê¹ÓÃͳһµÄ±àÂ룬Èç¹ûÄãÊÇÖØÍ·¿ª·¢Ò»¸öÏ ......