Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

´«ÖDz¥¿Íjavaѧϰ5 ÊäÈëÊä³öÁ÷

½ñÌìÎÒѧϰÁËJavaÊäÈëÊä³öÁ÷
 
Java ÓïÑÔ²ÉÓÃÁ÷µÄ»úÖÆʵÏÖʵÏÖÊäÈëÓëÊä³ö¡£ÊäÈëÊä³öÁ÷£ºÊµÏÖÊäÈëÊä³ö²Ù×÷µÄÀà¿âÔÚJava.io.°üÖУº
1.
 File¶ÔÏóÊÇFileÀàµÄʵÀý£¬File¶ÔÏó¶ÔÓ¦Ò»¸öĿ¼»òÎļþ£¬¶ÔÏóµÄÊôÐÔ°üÀ¨Îļþ·¾¶¡¢Ãû×Ö¡¢Îļþ³¤¶È¡¢¿É·ñ¶Áд¡£File¶ÔÏóÖ»ÓÃÀ´ÃüÃûÎļþ£¬²éѯÎļþÊôÐÔ¡¢ºÍ´¦ÀíĿ¼£¬²»ÌṩÎļþµÄ¶Áд²Ù×÷¡£
ÀýÈ磺´´½¨File¶ÔÏóµÄ´úÂ룺File f1=new  File(“/myfile/mefile.txt”);
                          File f2=new  File(“/myfile”,”myfile.txt”);
ÏÂÃæÊÇÒ»¸öÎļþµÄ¸´ÖƳÌÐò£¬½«Ä³¸öÎļþµÄÄÚÈÝÈ«²¿¸´ÖƵ½ÁíÒ»¸öÎļþÖÐ
          import java.io.*;
class Example
{
  public static void main(String[] args)
  {
         File inputFile = new File("a.txt");
         File outputFile = new File("b.txt");
         int ch;
         try
         {
                FileReader in=new FileReader(inputFile);
                FileWriter out=new FileWriter(outputFile);
                while((ch=in.read())!=-1)
                {
                       out.write(ch);
                }    
             &nbs


Ïà¹ØÎĵµ£º

javaÈëÃÅ

 Javaѧϰ´ÓÈëÃŵ½¾«Í¨ 
Ò»¡¢ JDK (Java Development Kit) 
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁËJavaÔËÐл·¾³£¨Java Runtime Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕJDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJ ......

JavaÔõÑùÖжÏÒ»¸öÔËÐÐÖеÄÏß³Ì

¹Ø¼ü×Ö: thread


³ÌÐòÊǺܼòÒ׵ġ£È»¶ø£¬ÔÚ±à³ÌÈËÔ±ÃæÇ°£¬¶àÏ̳߳ÊÏÖ³öÁËÒ»×éеÄÄÑÌ⣬Èç¹ûûÓб»Ç¡µ±µÄ½â¾ö£¬½«µ¼ÖÂÒâÍâµÄÐÐΪÒÔ¼°Ï¸Î¢µÄ¡¢ÄÑÒÔ·¢ÏֵĴíÎó¡£
ÔÚ±¾ÆªÎÄÕÂÖУ¬ÎÒÃÇÕë¶ÔÕâЩÄÑÌâÖ®Ò»£ºÈçºÎÖжÏÒ»¸öÕýÔÚÔËÐеÄÏ̡߳£
Öжϣ¨Interrupt£©Ò»¸öÏß³ÌÒâζ×ÅÔÚ¸ÃÏß³ÌÍê³ÉÈÎÎñ֮ǰֹͣÆäÕýÔÚ½øÐеÄÒ»ÇУ ......

javaÖÐequalsºÍ==µÄÇø±ð

ÖµÀàÐÍÊÇ´æ´¢ÔÚÄÚ´æÖеĶÑÕ»£¨ÒÔºó¼ò³ÆÕ»£©£¬¶øÒýÓÃÀàÐ͵ıäÁ¿ÔÚÕ»Öнö½öÊÇ´æ´¢ÒýÓÃÀàÐͱäÁ¿µÄµØÖ·£¬¶øÆä±¾ÉíÔò´æ´¢ÔÚ¶ÑÖС£
==²Ù×÷±È½ÏµÄÊÇÁ½¸ö±äÁ¿µÄÖµÊÇ·ñÏàµÈ£¬¶ÔÓÚÒýÓÃÐͱäÁ¿±íʾµÄÊÇÁ½¸ö±äÁ¿ÔÚ¶ÑÖд洢µÄµØÖ·ÊÇ·ñÏàͬ£¬¼´Õ»ÖеÄÄÚÈÝÊÇ·ñÏàͬ¡£
equals²Ù×÷±íʾµÄÁ½¸ö±äÁ¿ÊÇ·ñÊǶÔͬһ¸ö¶ÔÏóµÄÒýÓ㬼´¶ÑÖеÄÄÚÈÝÊÇ·ñ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ