Ubuntu linuxÏÂJavaµÄ°²×°
javaµÄ°²×°
·½·¨Ò»
´ò¿ªÖնˣ¬Ö´ÐÐÒÔÏÂÃüÁ»òʹÓÃAdept/ÐÂÁ¢µÃÈí¼þ¹ÜÀíÆ÷£¬ÔÚÆäÖзֱðËÑË÷"sun-java6-jre"ºÍ"sun-java6-jdk"²¢±ê¼Ç°²×°¡£
sudo apt-get install sun-java6-jre
Èç¹û¿Õ¼ä¸»Ô££¬½¨Òé°²×°Ò»¸öJDK¡£
sudo apt-get install sun-java6-jdk
Ìáʾ£º°²×°¹ý³ÌÖÐÐèÒªÄã»Ø´ðÊÇ·ñͬÒâʹÓÃÐÒ飨ÖÕ¶ËÖкìÀ¶É«µÄÌáʾ½çÃ棩£¬´Ëʱ°´tab¼üÖÁOK£¬ÔÙ°´»Ø³µ¼´¿ÉÕý³£°²×°
ÉèÖõ±Ç°Ä¬ÈϵÄjava½âÊÍÆ÷£º
sudo update-alternatives --config java
Ö´Ðкó»á³öÏÖÀàËÆÈçϵĻÃæ:
There are 2 alternatives which provide `java'.
Selection Alternative
-----------------------------------------------
1 /usr/bin/gij-wrapper-4.1
*+ 2 /usr/lib/jvm/java-6-sun/jre/bin/java
Press enter to keep the default[*], or type selection number:
ÊäÈë Óаüº¬ "sun" µÄÐеÄÇ°ÃæµÄÊý×Ö¡£ÈçÉÏÃæÏÔʾ£¬ÔòÊäÈë2£¬È»ºó»Ø³µÈ·¶¨¡£
ÅäÖÃJAVA»·¾³±äÁ¿:
sudo gedit /etc/environment
ÔÚÆäÖÐÌí¼ÓÈçÏÂÁ½ÐУº
CLASSPATH=.:/usr/lib/jvm/java-6-sun/lib
JAVA_HOME=/usr/lib/jvm/java-6-sun
sudo gedit /etc/jvm
½«ÎļþÖеÄ
/usr/lib/jvm/java-6-sun
ÕâÒ»ÐÐÌîÈëµ½ÅäÖÿéµÄ¶¥²¿
°²×°ä¯ÀÀÆ÷µÄJAVA Plugin£¨¿ÉÑ¡£©£º
sudo apt-get install sun-java6-plugin
ÁíÍâÒ»ÖÖ°ì·¨£º
1. ´ÓsunÖ÷Ò³ÏÂÔØJDK for Linux°æ±¾¡£ÕâÀïÏÂÔصÄÊÇjdk-6u6-linux-i586.bin.
2. ÓÃrootÓû§µÇ¼ubuntu£¬»òÊÇÔÚÆÕͨÓû§ÏÂÓÃsuÃüÁîÇл»Óû§¡£Çл»µ½ËùÐèµÄ°²×°Ä¿Â¼¡£ÀàÐÍ£ºcd <Ŀ¼·¾¶Ãû> ÀýÈ磬ҪÔÚ /usr/java/ Ŀ¼ÖÐ °²×°Èí¼þ£¬Çë¼üÈ룺cd /usr/java/£¬°Ñjdk-6u6-linux-i586.binÎļþ¿½±´Õâ¸öĿ¼ÀïÃ棬ÉèÖÃȨÏÞΪ¿ÉÖ´ÐÐÀàÐÍ£ºchmod a+x jre-6u6-linux-i586.bin
3. Æô¶¯°²×°¹ý³Ì¡£¼üÈ룺¡£/jre-6u<version>-linux-i586.bin.½ÓÏÂÀ´»áÌáʾ¶þ½øÖƵÄÐí¿ÉÐÒ飬¼üÈëyes»Ø³µ¼´¿É¡£°²×°¹ý³ÌÈç¹ûÓöµ½Ò»Ð©ÎÊÌ⣬¶¼Í¬Ñù¼üÈëyes¾Í¿ÉÒÔ¡£
4. һ·ÏÂÀ´£¬×îºó¿´µ½Done×ÖÑù£¬¾ÍÍê³ÉÁËJava»·¾³µÄ°²×°¡£°²×°µÄλÖþÍÊǵ±Ç°Ä¿Â¼ /usr/java£¬µ±È»Äã¿ÉÒÔÑ¡ÔñÔÚ±ðµÄλÖ᣿ÉÒÔÓÃlsÃüÁî²é¿´Ò»ÏÂÊÇ·ñÕý³£¡£
»·¾³±äÁ¿ÅäÖÃ
ÉÏÃæ°²×°Íê±Ïºó£¬Ö±½ÓÔÚshellÀïÃæÊäÈëjavaÊDz»Æð×÷Óõģ¬ÐèÒªÏÈÅäÖÃһϻ·¾³±äÁ¿¡£Ò»°ã¶¼»áÓÃexportÃüÁ²»¹ýÕâÑùÉèÖÃÖ»¶Ô
Ïà¹ØÎĵµ£º
£¨L2CAPÐÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPÐÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼Á¬½Ó¿ØÖƺÍÊÊÅäÐÒé (L2CAP) ΪÉϲãÐÒéÌṩÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
Ò»£ºÇ°ÑÔ
×î½üÔÚÑо¿androidµÄsensor driver£¬Ö÷ÒªÊÇE-compass£¬ÆäÖÐÓõ½ÁËLinux input×Óϵͳ.ÔÚÍøÉÏÒ²¿´Á˺ܶàÕâ·½ÃæµÄ×ÊÁÏ£¬¸Ð¾õ»¹ÊÇÕâƪ·ÖÎöµÄ±È½ÏϸÖÂ͸³¹£¬Òò´ËתÔØÒ»ÏÂÒÔ±ã×Ô¼ºÑ§Ï°£¬Í¬Ê±ºÍ´ó¼Ò·ÖÏí£¡
£¨Õâƪ²©¿ÍÖ÷ÒªÊÇÒÔ¼üÅÌÇý¶¯ÎªÀýµÄ£¬²»¹ý½²½âµÄÊÇLinux Input Subsystem£¬¿ÉÒÔ×ÐϸµÄÑо¿Ò»Ï£¡£©
¼üÅÌÇý¶¯½«¼ì ......
ÀàµÄ³õʼ»¯ºÍ¶ÔÏó³õʼ»¯ÊÇ JVM ¹ÜÀíµÄÀàÐÍÉúÃüÖÜÆÚÖзdz£ÖØÒªµÄÁ½¸ö»·½Ú£¬Google ÁËÒ»±éÍøÂ磬ÓйØÀà×°ÔØ»úÖƵÄÎÄÕµ¹ÊDz»ÉÙ£¬È»¶øÀà³õʼ»¯ºÍ¶ÔÏó³õʼ»¯µÄÎÄÕ²¢²»¶à£¬ÌرðÊÇ´Ó×Ö½ÚÂëºÍ JVM ²ã´ÎÀ´·ÖÎöµÄÎÄÕ¸üÊÇÏÊÓÐËù¼û¡£
±¾ÎÄÖ÷Òª¶ÔÀàºÍ¶ÔÏó³õʼ»¯È«¹ý³Ì½øÐзÖÎö£¬Í¨¹ýÒ»¸öʵ¼ÊÎÊÌâÒýÈ룬½«Ô´´úÂëת»»³É JVM ×Ö½ÚÂëºó£¬ ......
×î½ü¹«Ë¾ÒªÇó°ÑexcelµÄÊý¾Ýµ¼Èëµ½Êý¾Ý¿âÖÐÈ¥¡£µ±Ê±Ã»ÔõôÏë¾ÍÖ±½ÓÓÃjava.sql°üϵÄÀà°ÑÊý¾Ý¶Á³öÀ´È»ºóÆ´×°³ÉsqlÓï¾ä£¬Ë³ÀûÍê³ÉÁËÈÎÎñ¡£ºóÀ´ÓõÚÈý·½²å¼þʵÏÖÁ˶Á£¬Ð´£¬ÐÞ¸ÄexcelÎļþ¡£ ÏÖÔÚÄóöÀ´¾ÍºÍ´ó¼Ò·ÖÏí¡£Ï£ÍûÄܹ»ÔÚijÖ̶ֳÈÉÏ°ï´ó¼Ò½â¾öһЩʵ¼ÊÎÊÌâ¡£
µÚÈý·½×é¼þ¿ÉÒÔÔÚ´ËÏÂÔØ£ºhttp://nexcel.sourceforge.net/
Ê× ......
package test;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class Test {
public static void main(String arg[]) {
String fileName = "E:\\share\\test.txt";
String writeData = "HelloWorld!\r\nnihaoÎÒµÄ ......