javaÎļþ¹ýÂËÆ÷µÄʹÓÃ
javaÎļþ¹ýÂËÆ÷µÄʹÓôúÂëÈçÏ£º
²âÊÔ´úÂ룺package file;
import java.io.File;
public class fileFilter {
public static void main(String[] args) {
File file = new File("d:\\");//ÉèÖÃÎļþ·¾¶
for (File fileList : file.listFiles(new file.MyFileFilter())) {
System.out.println(fileList.getName());
}
}
}
¹ýÂËÆ÷´úÂ룺
package file;
import java.io.File;
import java.io.FileFilter;
public class MyFileFilter implements FileFilter {
//ʵÏÖFileFilterµÄ·½·¨
public boolean accept(File arg0) {
if (arg0.getName().endsWith(".class")) {
return true;
}
return false;
}
}
Ïà¹ØÎĵµ£º
ǰÑÔ£º
±¾ÎÄÊǶÔJava¼¯ºÏ¿ò¼Ü×öÁËÒ»¸ö¸ÅÀ¨ÐԵĽâ˵£¬Ä¿µÄÊǶÔJava¼¯ºÏ¿ò¼ÜÌåϵÓиö×ÜÌåÈÏʶ£¬Èç¹ûÄãÏëѧϰ¾ßÌåµÄ½Ó¿ÚºÍÀàµÄʹÓ÷½·¨£¬Çë²Î¿´Java APIÎĵµ¡£
Ò»¡¢¸ÅÊö
Êý¾Ý½á¹¹¶Ô³ÌÐòÉè¼ÆÓÐ×ÅÉîÔ¶µÄÓ°Ï죬ÔÚÃæÏò¹ý³ÌµÄCÓïÑÔÖУ¬Êý¾Ý¿â½á¹¹ÓÃstructÀ´ÃèÊö£¬¶øÔÚÃæÏò¶ÔÏóµÄ±à³ÌÖУ¬Êý¾Ý½á¹¹ÊÇÓÃÀàÀ´ÃèÊöµÄ£¬²¢ÇÒ°üº¬ÓжԸÃÊ ......
µÚÒ»£¬Ì¸Ì¸final£¬ finally£¬ finalizeµÄÇø±ð¡£
¡¡¡¡final ÓÃÓÚÉùÃ÷ÊôÐÔ£¬·½·¨ºÍÀ࣬·Ö±ð±íʾÊôÐÔ²»¿É±ä£¬·½·¨²»¿É¸²¸Ç£¬À಻¿É¼Ì³Ð¡£finallyÊÇÒì³£´¦ÀíÓï¾ä½á¹¹µÄÒ»²¿·Ö£¬±íʾ×ÜÊÇÖ´ÐС£finalizeÊÇObjectÀàµÄÒ»¸ö·½·¨£¬ÔÚÀ¬»øÊÕ¼¯Æ÷Ö´ÐеÄʱºò»áµ÷Óñ»»ØÊÕ¶ÔÏóµÄ´Ë·½·¨£¬¿ÉÒÔ¸²¸Ç ......
ÓÃJava±àдӦÓÃʱ£¬ÓÐʱÐèÒªÔÚ³ÌÐòÖе÷ÓÃÁíÒ»¸öÏֳɵĿÉÖ´ÐгÌÐò»òϵͳÃüÁÕâʱ¿ÉÒÔͨ¹ý×éºÏʹÓÃJavaÌṩµÄRuntimeÀàºÍProcessÀàµÄ·½·¨ÊµÏÖ¡£ÏÂÃæÊÇÒ»ÖֱȽϵäÐ͵ijÌÐòģʽ£º
...
Process process = Runtime.getRuntime().exec(".\\p.exe");
process.waitfor( );
...
ÔÚÉÏÃæµÄ³ÌÐòÖУ¬µÚÒ»Ðеē.\\p.exe& ......
ҪʹÓÃjava caching system£¬ÐèÒªÏÂÃæÕ⼸¸ö°ü£ºjcs.jar£¬concurrent.jar,commons-logging.jar, commons-lang.jar,commons-collection.jarÕ⼸¸ö°ü£¬ÔÚjava¹¤³ÌÀïÃæ£¬
Ê×ÏÈн¨Ò»¸öʹÓÃjcsµÄÅäÖÃÎļþ£ºcache.ccf£¬ÎļþÃû²»Äܸġ£
# DEFAULT CACHE REGION
# sets the default aux value for any non configured ca ......