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

´«ÖDz¥¿Íjavaѧϰ 3g¿ª·¢Android2

½ñÌìÊÇѧϰAndroid¿ª·¢µÄµÚ¶þÌ죺
      
½ñÌìÖ÷ҪѧϰÁËÎļþµÄ¶ÁÈ¡¡¢ÒÔ¼°¶ÔxmlÎļþµÄ½âÎö£º
ʹÓÃÎļþ½øÐÐÊý¾Ý´æ´¢£º
ActivityÌṩÁËopenFileOutput()·½·¨¿ÉÒÔÓÃÓÚ°ÑÊý¾ÝÊä³öµ½ÎļþÖУ¬¾ßÌåµÄʵÏÖ¹ý³ÌÓëÔÚJ2SE»·¾³Öб£´æÊý¾Ýµ½ÎļþÖÐÊÇÒ»ÑùµÄ¡£
public class FileActivity extends Activity {
    @Override
public void onCreate(Bundle savedInstanceState) {
       
...
        
FileOutputStream outStream = this.openFileOutput("itcast.txt",
Context.MODE_PRIVATE);
        
outStream.write("´«ÖDz¥¿Í".getBytes());
        
outStream.close();  
    }
}
openFileOutput()·½·¨µÄµÚÒ»²ÎÊýÓÃÓÚÖ¸¶¨ÎļþÃû³Æ£¬²»Äܰüº¬Â·¾¶·Ö¸ô·û“/” £¬Èç¹ûÎļþ²»´æÔÚ£¬Android
»á×Ô¶¯´´½¨Ëü¡£´´½¨µÄÎļþ±£´æÔÚ/data/data/<package
name>/filesĿ¼£¬È磺
/data/data/cn.itcast.action/files/itcast.txt
£¬Í¨¹ýµã»÷Eclipse²Ëµ¥“Window”-“Show
View”-“Other”£¬ÔÚ¶Ô»°´°¿ÚÖÐÕ¹¿ªandroidÎļþ¼Ð£¬Ñ¡ÔñÏÂÃæµÄFile ExplorerÊÓͼ£¬È»ºóÔÚFile
ExplorerÊÓͼÖÐÕ¹¿ª/data/data/<package
name>/filesĿ¼¾Í¿ÉÒÔ¿´µ½¸ÃÎļþ¡£
openFileOutput()·½·¨µÄµÚ¶þ²ÎÊýÓÃÓÚÖ¸¶¨²Ù×÷ģʽ£¬ÓÐËÄÖÖģʽ£¬·Ö±ðΪ£º
Context.MODE_PRIVATE   
=  0
Context.MODE_APPEND   
=  32768
Context.MODE_WORLD_READABLE =  1
Context.MODE_WORLD_WRITEABLE =  2
Context.MODE_PRIVATE
£º
ΪĬÈϲÙ×÷ģʽ£¬´ú±í¸ÃÎļþÊÇ˽ÓÐÊý¾Ý£¬Ö»Äܱ»Ó¦Óñ¾Éí·ÃÎÊ£¬ÔÚ¸ÃģʽÏ£¬Ð´ÈëµÄÄÚÈݻḲ¸ÇÔ­ÎļþµÄÄÚÈÝ£¬Èç¹ûÏë°ÑÐÂдÈëµÄÄÚÈÝ×·¼Óµ½Ô­ÎļþÖС£¿ÉÒÔʹÓÃContext.MODE_APPEND
Context.MODE_APPEND
£º
ģʽ»á¼ì²éÎļþÊÇ·ñ´æÔÚ£¬´æÔÚ¾ÍÍùÎļþ×·¼ÓÄÚÈÝ£¬·ñÔò¾Í´´½¨ÐÂÎļþ¡£
Context.MODE_WORLD_READABLEºÍContext.MODE_WORLD_WRITEABLEÓÃÀ´¿ØÖÆÆäËûÓ¦ÓÃÊÇ·ñÓÐȨÏÞ¶Áд¸ÃÎļþ¡£
MODE_WORLD_READABLE
£º±íʾµ±Ç°Îļþ¿ÉÒÔ±»ÆäËûÓ¦ÓöÁÈ¡£»MODE_WORLD_WRITEABLE
£º±íʾµ±Ç°Îļþ¿ÉÒÔ±»Æ


Ïà¹ØÎĵµ£º

Java °´×Ö½Ú½ØÈ¡´øÓкº×ÖµÄ×Ö·û´®µÄÒ»ÖÖ×ö·¨

Java °´×Ö½Ú½ØÈ¡´øÓкº×ÖµÄ×Ö·û´®µÄ½â·¨£¬ÍøÉÏÓв»ÉÙÌÖÂÛ¡£ÕâÀïÎÒÒ²¸ø³öÒ»ÖÖÎÒ×Ô¼ºµÄ´¦Àí£¬»ù±¾Ô­Àí»¹ÊÇͳ¼ÆÒª½ØÈ¡µÄ×Ö½ÚÊýÖÐÊDZíʾºº×ÖµÄ×Ö½ÚÊýÊÇ·ñÊÇżÊý¸ö£¬¼´ÊÇ·ñ¸ÕºÃ°üÀ¨ÁËÍêÕûµÄºº×Ö¡£
/**
 * ±à³Ì£º±àдһ¸ö½ØÈ¡×Ö·û´®µÄº¯Êý£¬ÊäÈëΪһ¸ö×Ö·û´®ºÍ×Ö½ÚÊý£¬Êä³öΪ°´×Ö½Ú½ØÈ¡µÄ×Ö·û´®¡£ µ«ÊÇÒª±£Ö¤ºº×Ö²»±»½Ø°ë¸ ......

java swing


<!--
@page { size: 21cm 29.7cm; margin: 2cm }
P { margin-bottom: 0.21cm }
-->
     Swing
ÊÇĿǰ
Java
Öв»¿ÉȱÉٵĴ°¿Ú¹¤¾ß×飬ÊÇÓû§½¨Á¢Í¼Ðλ¯Óû§½çÃæ£¨
GUI
£©³ÌÐòµÄÇ¿´ó¹¤¾ß¡£
Java Swing
×é¼þ×Ô¶¯²úÉú¸÷ÖÖʼþÀ´ÏìÓ¦Óû§ÐÐΪ¡£Èçµ±Óû§µã»÷°´Å¥»òÑ¡Ôñ²Ëµ¥Ïî ......

´«ÖDz¥¿Íjavaѧϰ Spring³õ²½

ÎÒ½ñÌìѧϰÁËÐìÀÏʦ½²µÄSpring֪ʶ£¬ÎÒ×öÁ˼òµ¥µÄ±Ê¼Ç£º
·´Ïò¿ØÖÆ(IOC)
£º
      
bean¹¤³§:×î¼òµ¥µÄÈÝÆ÷£¬ÌṩÁË»ù´¡µÄÒÀÀµ×¢ÈëÖ§³Ö¡£´´½¨¸÷ÖÖÀàÐ͵ÄBean.
Ó¦ÓÃÉÏÏÂÎÄ:½¨Á¢ÔÚbean¹¤³§»ù´¡Ö®ÉÏ£¬Ìṩϵͳ¼Ü¹¹·þÎñ¡£
ClassPathXmlApplicationContext:´ÓÀà·¾¶ÖмÓÔØ¡£
FileSystemXmlAp ......

´«ÖDz¥¿Íjavaѧϰ ½ÌÓý°ì¹«ÏµÍ³4

½ñÌì¼ÌÐø½ÌÓý°ì¹«ÏµÍ³µÄÂọ́¬½ñÌìÖ÷Òª½²µÄÊÇȨÏÞÄ£¿é£º
      
1. ¼¯³É spring-security ¿ò¼Ü
      
1). ¼ÓÈë spring-security µÄÁ½¸ö jar °ü
      
2). ÔÚ web.xml ÎļþÖмÓÈë¼ÓÈë spring-security ¿ò¼ÜµÄ¹ýÂËÆ÷
&n ......

´«ÖDz¥¿Íjavaѧϰ ½ÌÓý°ì¹«ÏµÍ³5

½ñÌì¼ÌÐøÑ§Ï°Ù¡ÀÏʦµÄ½ÌÓý°ì¹«ÏµÍ³µÄÂọ́¬½ñÌìÖ÷ҪѧϰȨÏÞÄ£¿éºÍÔ±¹¤Ä£¿éµÄ¼¯³É£»
      
      
1.
¼¯³ÉȨÏÞÄ£¿éºÍÔ±¹¤Ä£¿é
.
      
1).
мÈëÔ±¹¤Ê±
,
¿ÉÒÔΪÆäÌí¼Ó½ÇÉ«
     &n ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ