JAVA »ñµÃIPµØÖ·
1. java »ñÈ¡ipµØÖ·µÄ´úÂë
String loacalIp = "";
try
{
InetAddress localhost = InetAddress.getLocalHost();
loacalIp =localhost.getHostAddress();
//System.out.println("localhost: "+localhost.getHostAddress());
//System.out.println("localhost: "+localhost.getHostName());
}
catch(UnknownHostException uhe)
{
System.err.println("Localhost Ip exception " + uhe.toString());
}
A£º´Ë´úÂëÔÚwindows ÏÂÃæ»ñÈ¡ipµØÖ·ÊÇÍêÈ«ÕýÈ·¡£
B£º´Ë´úÂëÔÚlinuxÏÂÃæÈ¡µÃµÄipµØÖ·×ÜÊÇ:127.0.0.1
2.ΪÁË»ñÈ¡linuxÏÂÃæÕýÈ·µÄipµØÖ·
ÐÞ¸ÄetcÏÂÃæµÄhostsÎļþ
***.***.***.*** localhost.localdomain localhost
ÐÞ¸ÄΪ±¾»úµÄipµØÖ·£¬¶ø²»ÊÇ127.0.0.1
¾ßÌåÐ޸ĵķ½·¨£¬µ±È»ÊÇÓÃvi½øÐб༡£±£´æºó²»ÓÃÖØÆô»úÆ÷£¬¼´¿É¡£
Ïà¹ØÎĵµ£º
ÆäÊµÕÆÎÕ
MappedByteBuffer
²¢²»ÄÑ£¬Ö»Òª¼Çס“Èý·½Èý·¨ÈýÌØÐÔ”£¨ÎÒ×Ô¼º×ܽáµÄ£¬ºÇºÇ
~~
²»ÒªÈÓ¼¦µ°Å¶¡£¡£¡££©Õâ¾ä»°¾Í¿ÉÒÔÇáËɸ㶨£¡
MappedByteBuffer
Ö»ÊÇÒ»ÖÖÌØÊâµÄ
ByteBuffer
£¬¼´ÊÇ
ByteBuffer
µÄ×ÓÀà¡£
MappedByteBuffer
½«ÎļþÖ±½ÓÓ³Éäµ½Äڴ棨ÕâÀïµÄÄÚ´æÖ¸µÄÊÇÐéÄâÄڴ棬²¢² ......
1995Äê5ÔÂ23ÈÕ£¬JavaÓïÑÔµ®Éú
1996Äê1Ô£¬µÚÒ»¸öJDK-JDK1.0µ®Éú
1996Äê4Ô£¬10¸ö×îÖ÷ÒªµÄ²Ù×÷ϵͳ¹©Ó¦ÉÌÉêÃ÷½«ÔÚÆä²úÆ·ÖÐǶÈëJAVA¼¼Êõ
1996Äê9Ô£¬Ô¼8.3Íò¸öÍøÒ³Ó¦ÓÃÁËJAVA¼¼ÊõÀ´ÖÆ×÷
1997Äê2ÔÂ18ÈÕ£¬JDK1.1·¢²¼
1997Äê4ÔÂ2ÈÕ£¬JavaOne»áÒéÕÙ¿ª£¬²ÎÓëÕßÓâÒ»ÍòÈË£¬´´µ±Ê±È«ÇòͬÀà»áÒ鹿ģ֮¼Í¼
1997Äê9 ......
ÒÔÏ´úÂëÄÜ·ñ±àÒëͨ¹ý£¬Èç¹û²»ÄÜ£¬Çë˵Ã÷ÀíÓÉ£¬Èç¹ûÄÜ£¬Çë˵Ã÷½á¹û¡£
public class a {
{
System.out.println("AAA");
}
a() {
System.out.println("BBB");
}
{
System.out.println("CCC");
}
class aa extends a {
{
new a();
System.out.prin ......
ÕâÀJavaµÄ¶ÁÎļþºÍдÎļþ¶¼ÊÇ»ùÓÚ×Ö·ûÁ÷µÄ£¬Ö÷ÒªÓõ½ÏÂÃæµÄ¼¸¸öÀࣺ
1¡¢FileReader----¶ÁÈ¡×Ö·ûÁ÷
2¡¢FileWriter----дÈë×Ö·ûÁ÷
3¡¢BufferedReader----»º³åÖ¸¶¨ÎļþµÄÊäÈë
¸ÃÀàµÄ·½·¨ÓУº
void close()
¹Ø±Õ¸ÃÁ÷¡£
void mark(int readAhead ......
ת×ÔInfoQ£¬×÷Õß Charles Humble ÒëÕß ÕÅÁú
±¾ÔÂ3ÈÕSunµÄJ2SE 5.0ʵÏÖÒÑÖÕ½á·þÎñÖÜÆÚ£¨End of Service Life£¬¼´EOSL£©£¬ÕâÒ»ÌìÒ²ÊÇ×îºóµÄÒ»´Î5.0¸üз¢²¼ÈÕÆÚ£¨J2SE 5.0 Update 22£©¡£Ñ°ÇóSunÖ§³ÖµÄÓû§¿ÉÒÔÑ¡ÔñÉý¼¶µ½Java 6»òÊǶ©ÔÄSunµÄJava for Business³ÌÐò¡£
SunÌṩÁ˶àÖÖ¶àÑùµÄJava¸¶·ÑÖ§³Ö¡£Java¾µäÖ§³Ö£ ......