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

ÈçºÎÓÃÃüÁîÐÐÔËÐÐjava³ÌÐò¼°ÊäÈëmainº¯Êý²ÎÊýµÄÊäÈë

ǰÌ᣺JDKÔÚ»·¾³±äÁ¿ÀïÓÐÅäÖà 1.Ê×ÏȽ¨¸ö¹¤³ÌTest£¨¼ÙÈç·ÅÓÚD:\java£©½«srcĿ¼ÏµÄÎļþ¿½±´µ½classesĿ¼Ï 2.ÔËÐÐÀïÊäÈëcmd->»Ø³µ 3.ÊäÈëD:->»Ø³µ 4.ÊäÈëcd java»Ø³µ(cdδ´ò¿ªÎļþ¼Ð) 5.ÊäÈëcd test->»Ø³µ 6.ÊäÈëcd classes->»Ø³µ 7.ÊäÈëdir->»Ø³µ£¨dirΪÏÔʾ¸ÃĿ¼ÏµÄËùÓÐÎļþ£© 8.¶Ôÿ¸ö.javaÎļþ½øÐбàÒ룬Èçkkk.javaÒª±àÒëÊäÈëjavac kkk.java¼´¿É 9.ÈôÉú³Ékkk.classÎļþ˵Ã÷±àÒë³É¹¦,ÊäÈëjava TestÖ´ÐÐÏîÄ¿ÏîÄ¿£¬Èôº¯ÊýmainÓвÎÊý±ÈÈçÓÐÁ½¸ö²ÎÊýÒ»¸öΪ·¾¶²ÎÊý£¬Ò»¸öΪÎļþ²ÎÊý ÊäÈëjava Test D:\java student.txt(ÖмäÓÿոñ¸ô¿ª)£¨¼ÓÈëjavaĿ¼ÏÂÓÐÎļþstudent.txt¼Ç¼ѧÉúÐÅÏ¢£© ºÃÁ˴󹦸æ³ÉÁË¡£


Ïà¹ØÎĵµ£º

Java and XML_¶ÁÊé±Ê¼Ç_2010 05 17

Îå¡¢XMLģʽ
l  XMLģʽÄܸü¾«È·µÄ´¦ÀíXML½á¹¹Ô¼ÊøµÄ±íʾ֮Íâ»¹ÎªÔ¼ÊøÊý¾ÝµÄ´¦ÀíÌṩһ¸öXMLÑùʽ¡£Ä£Ê½Ö»ÊÇÒ»¸öXMLÎĵµ£¬ÊÜDTDµÄÔ¼Êø¡£¶ÔÓÚXMLģʽ¶øÑÔ£¬XML DTDÖ»ÊÇÒ»ÖÖ´´½¨ÎĵµÔ¼ÊøµÄÊֶΡ£ÒòΪXMLģʽÊÇΪÁËÇ¿»¯XMLÎĵµµÄÓÐЧÐÔ£¬Ëü±ØÐë²ÉÓÃÒ»ÖÖ»úÖÆ£¬¶ø²»ÊÇ×Ô¼º¶¨ÒåÔ¼ÊøÌõ¼þ¡£ÕâÖÖ»úÖÆ±ØÐëÊÇÒ»¸öDTD¡£µ«ÊÇԭʼµÄD ......

javaÊý×ֵĸñʽ»¯

1)   ¸ñʽ»¯ÕûÊý(°Ñ¸¡µãÊýת»¯ÎªÕûÊý)
       NumberFormat nf = NumberFormat.getIntegerInstance();
       double v=12.6;
       System.out.println(nf.format(v));
       Êä³ö½ ......

Java±ÊÊÔÌ⣺overrideºÍoverloadµÄÇø±ð

overrideÊÇ·½·¨µÄÖØÐ´£¬Í¨³£·¢ÉúÔÚ×ÓÀàÓ븸ÀàÖ®ÖУ¬Ö¸µÄÊÇ×ÓÀàÖж¨ÒåÁËÒ»¸öÓ븸Àà·µ»ØÖµÀàÐÍ£¬²ÎÊýÀàÐÍÍêÈ«ÏàͬµÄ·½·¨
overloadÊÇ·½·¨µÄÖØÔØ£¬Í¨³£ÔÚͬһ¸öÀàÖУ¬¶¨ÒåÁËÒ»¶Ñ·½·¨ÃûÏàͬ£¬µ«·µ»ØÖµ¿ÉÄܲ»Í¬£¬²ÎÊýÒ²¿ÉÄܲ»Í¬µÄ·½·¨
override£¨ÖØÐ´£©
1¡¢·½·¨Ãû¡¢²ÎÊý¡¢·µ»ØÖµÏàͬ¡£
2¡¢×ÓÀà·½·¨²»ÄÜËõС¸¸Àà·½·¨µÄ·ÃÎÊÈ¨Ï ......

JavaÃæÊÔÌâ

Java»ù´¡·½Ãæ: 
1¡¢×÷ÓÃÓòpublic,private,protected,ÒÔ¼°²»Ð´Ê±µÄÇø±ð
´ð£ºÇø±ðÈçÏ£º
×÷ÓÃÓò           µ±Ç°Àà       Í¬Ò»package  ×ÓËïÀà       ÆäËûpackage
public& ......

Linuxϰ²×°JAVA JDK

1.  ´ÓsunÖ÷Ò³ÏÂÔØJDK for Linux°æ±¾£¬ÎÒµÄÊÇjdk-6u14-linux-i586.bin¡£
2. ¸ÄΪ¿É²Ù×÷Îļþ£¬chmod +x  jdk-6u14-linux-i586.bin
3. °²×° ÔÚµ±Ç°Â·¾¶£¬./jdk-6u14-linux-i586.bin;һ·ȷ¶¨£¬×°ºÃÖ®ºóÔÚͬһĿ¼Ï»áÉú³ÉÒ»¸öÎļþ¼Ð£¬jdk1.6.0_14£¬Àï±ßÊÇһЩlibµÈÎļþ£¬Í¬windowsÏÂÉú³ÉµÄ°²×°Îļþ¼ÐÒ»Ñù¡£
4.Éè ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ