Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javaÓÃĬÈÏÓ¦ÓóÌÐò´ò¿ª¹ØÁªµÄÎļþ

import java.awt.Desktop;
import java.io.File;
import java.io.IOException;
public class TestDesktop {
public static void main(String[] a) {
try {
Desktop desktop = null;
if (Desktop.isDesktopSupported()) {
desktop = Desktop.getDesktop();
}
desktop.open(new File("/home/naughty610/NNSearcherTest/aa.txt"));
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}


Ïà¹ØÎĵµ£º

Java´úÂë±àдµÄ30Ìõ½¨Òé

(1) ÀàÃûÊ××ÖĸӦ¸Ã´óд¡£×ֶΡ¢·½·¨ÒÔ¼°¶ÔÏ󣨾ä±ú£©µÄÊ××ÖĸӦСд¡£¶ÔÓÚËùÓбêʶ·û£¬ÆäÖаüº¬µÄËùÓе¥´Ê¶¼Ó¦½ô¿¿ÔÚÒ»Æð£¬¶øÇÒ´óдÖм䵥´ÊµÄÊ××Öĸ¡£ÀýÈ磺
ThisIsAClassName
thisIsMethodOrFieldName
ÈôÔÚ¶¨ÒåÖгöÏÖÁ˳£Êý³õʼ»¯×Ö·û£¬Ôò´óдstatic final»ù±¾ÀàÐͱêʶ·ûÖеÄËùÓÐ×Öĸ¡£ÕâÑù±ã¿É±êÖ¾³öËüÃÇÊôÓÚ±àÒëÆÚµ ......

javaʼþ´¦Àí»úÖÆ£¨×Ô¶¨Òåʼþ£©¡¾×ª¡¿

javaÖеÄʼþ»úÖÆµÄ²ÎÓëÕßÓÐ3ÖÖ½ÇÉ«£º
1.event object£ºÊ¼þ״̬¶ÔÏó£¬ÓÃÓÚlistenerµÄÏàÓ¦µÄ·½·¨Ö®ÖУ¬×÷Ϊ²ÎÊý£¬Ò»°ã´æÔÚÓëlisternerµÄ·½·¨Ö®ÖÐ
2.event source£º¾ßÌåµÄʼþÔ´£¬±ÈÈç˵£¬Äãµã»÷Ò»¸öbutton£¬ÄÇôbutton¾ÍÊÇevent source£¬ÒªÏëʹbutton¶ÔijЩʼþ½øÐÐÏìÓ¦£¬Äã¾ÍÐèҪע²áÌØ¶¨µÄlistener¡£
3.event listener ......

JavaÖеÄinstanceof¹Ø¼ü×Ö

instanceofÊÇJavaµÄÒ»¸ö¶þÔª²Ù×÷·û£¬ºÍ==£¬>£¬<ÊÇͬһÀà¶«¶«¡£ÓÉÓÚËüÊÇÓÉ×Öĸ×é³ÉµÄ£¬ËùÒÔÒ²ÊÇJavaµÄ±£Áô¹Ø¼ü×Ö¡£ËüµÄ×÷ÓÃÊDzâÊÔËü×ó±ßµÄ¶ÔÏóÊÇ·ñÊÇËüÓұߵÄÀàµÄʵÀý£¬·µ»ØbooleanÀàÐ͵ÄÊý¾Ý¡£¾Ù¸öÀý×Ó£º
¡¡¡¡String s = "I AM an Object!";
¡¡¡¡boolean isObject = s instanceof Object;
¡¡¡¡ÎÒÃÇÉùÃ÷ÁËÒ»¸öStrin ......

java ÀàµÄÐòÁл¯ºÍ³Ö¾Ã»¯Àí½â


Ê×ÏÈҪ˵µÄÊÇ,HibernateÖÐORMÀï¶ÔÓ¦µÄÓ³ÉäÎļþBEAN,±ØÐëʵÏÖÐòÁл¯.ÒòΪBEANÀïµÄÊý¾ÝÐèÒª´æÈëÊý¾Ý¿â(Ҫת»¯Îª¶þ½øÖƱ£´æ),½øÐдæÈ¡¹¤×÷.
        JAVAÀàµÄÊý¾Ý ,Èç¹ûÒª½øÐÐÏà¹ØµÄ´æ´¢¹¤×÷(ÈçдÎļþ,ÍøÂç´«Êä,дÊý¾Ý¿âµÈ),ÄÇôÕâ¸öÊý¾ÝµÄÀà ¾Í±ØÐëʵÏÖÐòÁл¯½Ó¿Ú (java.io.Serializab ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ