Ê®Èý javaÃæÏò¶ÔÏó³ÌÐòÉè¼Æ(³õʼ»¯A)
Ê®Èý javaÃæÏò¶ÔÏó³ÌÐòÉè¼Æ(³õʼ»¯A)
/**
* ³õʼ»¯(Ò»)
* ³ÉÔ±±äÁ¿ºÍ¹¹Ôì»úµÄ³õʼ»¯¹ý³Ì
* 1,³ÉÔ±±äÁ¿µÄ³õʼ»¯:
* 2,¹¹Ôì·½·¨µÄÖ´ÐÐ˳Ðò:
* 3,¾²Ì¬³ÉÔ±µÄÖ´ÐÐ˳Ðò;
* 4,¾²Ì¬´úÂë¿éµÄÖ´ÐÐ˳Ðò;
*/
/* Ò»,³ÉÔ±³õʼ»¯ */
class MemberInitialization
{
/*1,×Ô¶¯³õʼ»¯*/
private boolean b;
private char c;
private byte by;
private short s;
private int i;
private long l;
private float f;
private double d;
private String str;
private MemberInitialization obj;
public void printInfo1(){
System.out.println(
"boolean " + b + "\n" +
"char " + c + "\n" +
"byte " + by + "\n" +
"short " + s + "\n" +
"int " + i + "\n" +
"long " + l + "\n" +
"float " + f + "\n" +
"double " + d + "\n" +
"String " + str + "\n" +
"reference " + obj
);//ÀàÖеijÉÔ±±äÁ¿¼´Ê¹Ã»ÓÐΪËûÃǸ³³õÖµ,Ò²½«»á×Ô¶¯³õʼ»¯.
/*µ«ÊÇÔÚÕâ¸ö·½·¨Öж¨ÒåµÄ±äÁ¿ÔÚʹÓÃǰûÓгõʼ»¯½«Ìáʾһ¸ö´íÎó.
int i;
i++;
*/
}
/*2,Ö¸¶¨³õʼ»¯*/
//(1),ÔÚ¶¨Òå±äÁ¿µÄµØ·½³õʼ»¯.
private boolean bl = true;
private char ch = 'a';
private byte bt = 0;
private short sh = 10;
private int in = 20;
private long lg = 30;
private float fl = 0.0f;
private double dl = 1.0;
private String strg = "string";
private MemberInitialization ob = this;
public void printInfo2()
{
Sys
Ïà¹ØÎĵµ£º
Ò»£º×¼±¸ www.savarese.org download
1. rocksaw-1.0.0-src.tar.gz
2. vserv-tcpip-0.9.2-src.tar.gz
¶þ£º±àÒëÔ´ÎļþµÃµ½jar°ü ʹÓÃAnt
1. build vserv-tcpip-0.9.2-src
ÔÚvserv-tcpip-0.9.2Ŀ¼ÏÂÃ潨һ¸ötestsĿ¼£¬È»ºóÔÚcmd´°¿ÚϽøÈë ......
ÓÃÁËÕâ¸ö£¬MyEclipseÀï¾Í²»»á±¨ÄÇЩ¾¯¸æÁË£¬¿´ÆðÀ´Æ¯ÁÁ¶àÁË
³£Óõģº
@SuppressWarnings("unchecked"),·ºÐÍ
@SuppressWarnings("deprecation"), deprecated·½·¨
@SuppressWarnings(value={"deprecation","unchecked"}) Ë«Ñ¡
@SuppressWarnings("serial"), ÐòÁл¯
......
Ó¦ÓóÌÐò·þÎñÆ÷ÊÇÒ»¸ö Java ½ø³Ì£¬ËüÐèÒª Java ÐéÄâ»ú£¨JVM£©²ÅÄÜÔËÐÐÒÔ¼°Ö§³ÖËüËùÔËÐÐµÄ Java Ó¦ÓóÌÐò¡£ÔÚÅäÖÃÓ¦ÓóÌÐò·þÎñÆ÷µÄ¹ý³ÌÖУ¬¿ÉÒÔ¶ÔÉèÖýøÐÐ΢µ÷ÒÔ¸ÄÉÆϵͳ¶Ô JVM µÄʹÓ÷½Ê½¡£
¹ØÓÚ±¾ÈÎÎñ
JVM Ϊ»ùÓÚ Java µÄÓ¦ÓóÌÐòÌṩÁËÔËÐÐʱִÐл·¾³¡£WebSphere Application Server ÊÇ JVM ÔËÐÐʱ»·¾³Óë»ùÓÚ Java µÄ ......
½Ó¿Ú±¾ÖÊÉϾÍÊÇÓÉÖƶ¨ÕßÀ´Ðµ÷ʵÏÖÕߺ͵÷ÓÃÕßÖ®¼äµÄ¹Øϵ¡£
ËùÒÔͨ³£ËµµÄ“ÃæÏò½Ó¿Ú±à³Ì”¿ÉÒÔÀí½âΪ£º
Ö»ÓÐʵÏÖÕߺ͵÷ÓÃÕ߶¼×ñÑ“ÃæÏò½Ó¿Ú±à³Ì”Õâ¸ö×¼Ôò£¬Öƶ¨ÕßµÄе÷Ä¿µÄ²ÅÄÜ´ïµ½¡£
Ò»¸öÀÏÉú³£Ì¸µÄÀý×Ó¾ÍÊÇJDBC¡£
ºÜ¶àÈ˷ѽ⣺¼ÈÈ»ÎÒÿÁ¬½ÓÒ»ÖÖÊý¾Ý¿â£¨Èçmysql£©¶¼ÒªÊÂÏȲ¿ÊðÇý¶¯³ÌÐò£¬ÄÇÎÒÖ±½ ......
javabean+Êý×éÓŵ㣺
1¡¢¼òµ¥£ºjava³ÌÐòÖÐ×î¼òµ¥µÄÀàĪ¹ýÓÚjavabean£¬javabeanÓÐÒ»Ì׳ÉÊìµÄ¹æ·¶£¬Ò×ÓÚ±àд
2¡¢·½±ã£ºjavabeanÊÇÊý¾ÝµÄÔØÌ壬¼È¿ÉÒÔͨ¹ýsetºÍget·½Ê½À´²Ù×÷Êý¾Ý£¬ÓÖ¿ÉÒÔÏóʹÓÃÊý×éÒ»ÑùÀ´²Ù×÷javabean
3¡¢Í¨ÓãºÍ¨¹ýϱêÀ´²Ù×÷javabean£¬ÄãËùдµÄ´úÂ뽫ÊÇͨÓõģ¬¿ÉÒÆÖ²µÄ¡£ÄãËùдµÄ¹¦ÄÜ×é¼þ½«ÊÊÓÃÓÚËùÓÐµÄ ......