Sun Java Wireless Toolkit 2.3 betaÐÂÔö¹¦ÄÜ
ÔÎijö´¦£ºhttp://developers.sun.com/techtopics/mobility/midp/articles/wtk23beta/
Sun Java Wireless ToolkitÔ½À´Ô½ºÃ£¬2.3beta°æ±¾Ôö¼ÓÁ˶ÔÓÚÈýÖÖеÄAPIµÄÖ§³Ö£º
l The Security and Trust Services APIs (SATSA, JSR 177)——ÔÊÐíMIDlets·ÃÎÊÖÇÄÜ¿¨ºÍÖ´ÐмÓÃܵŦÄÜ
l The Location API (JSR 179)——ʹMIDlets¾ß±¸²éÕÒÉ豸µ±Ç°Î»ÖõŦÄÜ
l The Content Handler API (CHAPI, JSR 211)——ÌṩÁËÒ»¸ö¸ù¾ÝÄÚÈݵĸñʽÆô¶¯MIDletsµÄ¹¦ÄÜ
ͨ¹ý¸Ä±ä¹¤¾ßµÄÃû³ÆÏԵøü¼ÓÇ×ÇÐ
¹¤¾ßµÄÃû³ÆËäÈ»¸Ä±äÁË£¬µ«ÊǼ¼ÊõºÍÆ·ÖÊ»¹ÊǺÍÒÔǰһÑùµÄºÃ¡£ÒÔǰµÄÃû³ÆÊÇJ2ME Wireless Toolkit£¬ÏÖÔÚÐÞ¸ÄΪSun Java Wireless Toolkit¡£
´Ó2000Äê·¢²¼ÒÔÀ´£¬¸Ã¹¤¾ß¸úËæ×ÅÒÆ¶¯Java¼¼ÊõµÄ·¢Õ¹¶ø²»¶Ï¸üС£ÕâÑù¾Í¿ÉÒÔÀí½âΪʲôҪ֧³ÖSATSA, the Location API, and CHAPIÁË¡£
Èç¹ûÄã¶ÔÓÚMIDP²»ÊìϤ£¬¿ÉÒԲο´Ò»²½Ò»²½Ñ§Ï°MIDP2.0
Õâ¾ø²»½ö½öÊÇÔö¼ÓÖ§³ÖµÄ
API
±¾´Î°æ±¾³ýÁËÖ§³ÖеÄAPIÒÔÍ⣬»¹ÔÚÒÔÏ·½Ãæ½øÐÐÁËÔöÇ¿£º
l ¿ÉÒÔ´ÓÒ»¶ÔjadºÍjarÎļþÖÐн¨ÏîÄ¿¡£Èç¹ûÄãÐèÒªÐÞ¸ÄÒ»¸öÒÑÓеÄMIDletÌ×¼þµÄÃèÊöÊôÐÔ£¬Õ⽫·Ç³£ÓÐÓá£
l Ö§³ÖHTTPÈÏÖ¤
l Ä£ÄâÆ÷µÄTextFieldÖеÄÎÄ×ÖÖ§³Ö¸´ÖƺÍÕ³Ìù¡£Õâ¸ö¾ªÈ˵ÄÓÐÓá£
l MIDletÇ©Ãû¹¤¾ß±»¸ÄÁ¼
l ÏîÄ¿ÉèÖÃÖеēAPI Selection”¶Ô»°¿òÔöÇ¿ÁËAPIÖ®¼äµÄ¹ØÁª¹ØÏµ¡£ÀýÈ磬Èç¹ûÄãÑ¡ÔñÁËCLDC1.1,ÄÇôÄã²ÅÄÜÑ¡ÔñMobile 3D Graphics API¡£
ÖÇÄÜ¿¨ºÍMIDP
É豸һÆð¹¤×÷
SATSA°üº¬ËÄÖÖ½ØÈ»²»Í¬µÄAPI¡£ÆäÖеÄÁ½¸öÔÊÐíMIDletºÍÖÇÄÜ¿¨Í¨ÐÅ£¬ÄÚÖÃÔÚ²¿·ÖMIDPÉ豸ÖС£²¿·ÖÉ豸»¹ÓÐÖÇÄÜ¿¨µÄÀ©Õ¹²å²Û¡£ÁíÍâÁ½¸öSATSA APIÌṩÁ˼ÓÃÜÇ©Ãû·þÎñºÍ½øÐмÓÃܵÄÄÜÁ¦¡£
Sun Java Wireless ToolkitÖ§³ÖËùÓеÄSATSA API¡£Ä£ÄâÆ÷ÓÐÁ½¸öÄ£ÄâµÄ¿¨²å²Û£¬Java CardÓ¦ÓÿÉÒÔ
Ïà¹ØÎĵµ£º
ÎÄÕÂ來Ô´:
http://www.blogjava.net/spark/archive/2006/09/29/72733.html
javaÖеÄioϵͳ×ܽá.
javaÖеÄioÖеģ¨input/output£©streamÎ޷ǾÍÊǰüÀ¨»ùÓÚ×Ö·ûµÄstream¡¢»ùÓÚ×Ö½ÚµÄstreamºÍ°Ñ×Ö½Úµ¼ÏòµÄstreamת»»
×Ö·ûΪµ¼ÏòµÄstreamµÄstream¡££¨ºÜÄÑÀí½âô£¿£©
ÒÔ×Ö½ÚΪµ¼ÏòµÄstream------InputStream/OutputStr ......
JavaÖÐI/O³õ̽
ʵÀý£º¶ÁÈ¡Îļþtest.Txt
´úÂ룺
try {
FileReader fReader=new FileReader("c:\\java\\test.txt");
BufferedReader bReader=new BufferedReader(fReader);
while(true) {
String temp=bReader.readLine();
&nbs ......
ËùÓеijÌÐò¿ª·¢Êֲᶼ°üº¬Á˸÷ÖÖ¹æÔò¡£Ò»Ð©Ï°¹ß×ÔÓɳÌÐòÈËÔ±¿ÉÄܶÔÕâЩ¹æÔòºÜ²»ÊÊÓ¦£¬µ«ÊÇÔÚ¶à¸ö¿ª·¢ÈËÔ±¹²Í¬Ð´×÷µÄÇé¿öÏ£¬ÕâЩ¹æÔòÊDZØÐèµÄ¡£Õâ²»½ö½ö
ÊÇΪÁË¿ª·¢Ð§ÂÊÀ´¿¼ÂÇ£¬¶øÇÒÒ²ÊÇΪÁ˺óÆÚά»¤¿¼ÂÇ¡£
ÃüÃû¹æ·¶
¶¨ÒåÕâ¸ö¹æ·¶µÄÄ¿µÄÊÇÈÃÏîÄ¿ÖÐËùÓеÄÎĵµ¶¼¿´ÆðÀ´ÏñÒ»¸öÈËдµÄ£¬Ôö¼Ó¿É¶ÁÐÔ£¬¼õÉÙÏîÄ¿×éÖ ......
1¡¢ ¶ÔÏóµÄ³õʼ»¯
(1) ·Ç¾²Ì¬¶ÔÏóµÄ³õʼ»¯
ÔÚ´´½¨¶ÔÏóʱ£¬¶ÔÏóËùÔÚÀàµÄËùÓÐÊý¾Ý³ÉÔ±»áÊ×ÏȽøÐгõʼ»¯¡£
»ù±¾ÀàÐÍ£ºintÐÍ£¬³õʼ»¯Îª0¡£
Èç¹ûΪ¶ÔÏó£ºÕâЩ¶ÔÏó»á°´Ë³Ðò³õʼ»¯¡£
¡ùÔÚËùÓÐÀà³ÉÔ±³õʼ»¯Íê³ÉÖ®ºó£¬²Åµ÷Óñ¾ÀàµÄ¹¹Ôì·½·¨´´½¨¶ÔÏó¡£
¹¹Ôì·½·¨µÄ×÷ÓþÍÊdzõʼ»¯ ......
˼·£ºÉú³ÉÒ»¸öËæ»úÊý----ת»»³É16½øÖÆ»òÆäËûÂëÖµ------ת»»³Éºº×Ö×Ö·û---ÏÔʾ
Éú³ÉÒ»¸öËæ»úÊý£¬ ÔÚ0x5000µ½0x9000Ö®¼äµÄ¶¼ÊǺº×Ö
ÎÒÖ»½²ÔÀí£¬µ«¾ßÌåµ½ÄãʹÓÃʲô±à³Ì¹¤¾ßÊÇÄã×Ô¼ºµÄÎÊÌâ¡£
Èκαà³Ì¿ª·¢¹¤¾ß¶¼ÓÐËæ»úÊýÕâ¸ö¸ÅÄ¶øÎÒÃǵÄÇøÎ»ÂëÕýºÃÊÇÓÉËÄλÊý×Ö×é³ÉµÄ£¬ÇøÎ»ÊäÈë·¨¿ÉÒÔÊäÈëGB2312-80µÄÈ«²¿ºº×Ö£¬ ......