³£¼ûË㷨ѧϰ¼°ÆäJavaʵÏÖ
package org.bupt.test;
import java.util.ArrayList;
class MyResource {
ArrayList<Integer> arrList= new ArrayList<Integer>();
public MyResource(ArrayList<Integer> arrList) {
this.arrList = arrList;
}
public void insertionSort() {
boolean conFlag = true;
for (int i = 0; i < arrList.size(); i++) {
while (conFlag) {//ÿÌ˱ȽÏǰÏÈÅжÏÉϴαȽÏÊDz»ÊÇûÓл¥»»¶¯×÷·¢Éú£¬ÈôÊÇÔò˵Ã÷Ê£ÏÂûÓÐÅŵÄÒѾÂú×ã˳Ðò
conFlag =false;
for (int j = 0; j < arrList.size()-i-1; j++) {
if (arrList.get(j)<arrList.get(j+1)) {
int temp = arrList.get(j);
arrList.set(j, arrList.get(j+1));
arrList.set(j+1, temp);
conFlag = true;
}
}
for (int j = 0; j < arrList.size(); j++) {
Sy
Ïà¹ØÎĵµ£º
Ŀ¼
1. ¼ò½é
2. °²×°
3. log4j»ù±¾¸ÅÄî
3.1. Logger
3.2. Appender
3.2.1. ʹÓÃConsoleAppender
3.2.2. ʹÓÃFileAppender
3.2.3. ʹÓÃWriterAppender
3.3. Layout
3.4. »ù±¾Ê¾Àý
3.4.1. SimpleLayoutºÍFileAppender
3.4.2. HTMLLayoutºÍWriterAppender
3.4.3. PatternLayoutºÍConsoleAppender
4. ʹÓÃÍⲿ ......
1 JDK5.0°üÀ¨µÄµ÷ÊÔ¹¤¾ß
ÎÒÃÇÔÚÕâÀï¶ÔJDK5.0µÄµ÷ÊÔ¹¤¾ß×ö´óÖµĸÅÄîÐԵĽéÉÜ£¬È»ºóÏ£Íûͨ¹ý½éÉÜÎÒ×Ô¼ºÔÚʵ¼Ê¹¤×÷ÖÐʹÓÃÕâЩ¹¤¾ß½â¾öÎÊÌâµÄʵÀýÀ´Èôó¼Ò¶ÔÕâЩ¹¤¾ßÓиüÉîÈëµÄÁ˽⡣
¡¡JDK5.0ÀïÃæ¼ÓÈëÁËjstack, jconsole, jinfo, jmap, jdb, jstat, jps, ÏÂÃæ¶ÔÕâЩ¹¤¾ß×ö¼òµ¥½éÉÜ£º
¡¡jstack -- Èç¹ûjava³Ì ......
ǰһÕóÔÚ¹«Ë¾ÀïʹÓà jconsle ʱһÇÐÕý³££¬È»¶øÔÚ¼ÒÖеĻúÆ÷ÉÏÈ´³öÏÖÁ˱êÌâËùʾµÄÎÊÌ⣺
jconsole ºÍ jps ÎÞ·¨ÏÔʾ±¾µØ Java ½ø³ÌÁÐ±í¡£
µ±Ê±Ö±½ÓÀûÓà -Dcom.sun.management.jmxremote.port=port Æô¶¯Ä¿±ê java ½ø³Ì£¬²¢ÔÚ jconsole ÖÐͨ¹ý localhost:port ·½Ê½³É¹¦Á¬½ÓÉÏÄ¿±ê java ½ø³Ì¡£ÓÐÁËÕâ¸ö work around Ö®ºó£¬¶ÔÕ ......
1 ÍøÂçͨÐŵı¾ÖÊÊǽø³Ì¼äͨÐÅ¡£
2 TcpÐÒéºÍUDPÐÒé
TCP£º¿ªÏú´ó£¬ÓÃÓÚ¿É¿¿ÐÔÒªÇó¸ßµÄ³¡ºÏ¡£
TCPµÄ¹ý³ÌÏ൱ÓÚ´òµç»°µÄ¹ý³Ì
UDP£ºÓÃÔÚ¶ÔʵʱÐÔÒªÇó±È½Ï¸ßµÄ³¡ºÏ¡£
UDPµÄ¹ý³ÌÏ൱ÓÚдÐŵĹý³Ì¡£
×¢Ò⣺socketÊÇÌ×½Ó×Ö£¬ipºÍport£¨¶Ë¿ÚºÅ 0~65535¸ö¶Ë¿Ú£¬Ò»¸ö¶Ë¿ÚÖ»ÄÜÓÐÒ»¸ö½ø³Ì£©
3£¬   ......
Ê×ÏÈһЩ±»³õʼ»¯¶ÔÏóµÄ¸ÅÄ
Àà±äÁ¿£¨Àྲ̬³ÉÔ±£©£º Àà±»¼ÓÔØÊ±²úÉú£»ËüµÄÉú´æÆÚÊÇÀàµÄÉú´æÆÚ£»×Ô¶¯³õʼ»¯£¨Àà±»¼ÓÔØ£©
³ÉÔ±±äÁ¿£¨Àà³ÉÔ±£©£º ÔÚʹÓÃnew´´½¨¸ÃÀàʵÀýʱ²úÉú£»ËüµÄÉú´æÆÚÓë¸ÃÀàʵÀý¶ÔÏóµÄÉú´æÆÚÏàͬ£»
×Ô¶¯³õʼ»¯£¨¹¹Ôì·½·¨±»µ÷Óã©
¾Ö²¿±äÁ¿£¨ÀàµÄ·½·¨ÖеıäÁ¿£©£º ¸Ã·½·¨±»µ÷ÓÃÊ ......