java BufferedReaderºÍInputStreamReaderµÄÇø±ð
BufferedReader:
Read text from a character-input
stream, buffering characters so as to provide for the
efficient reading of characters, arrays, and lines.
InputStreamReader:
An InputStreamReader is a bridge from byte streams to
character streams: It reads bytes and decodes them
into characters using a specified charset.
Ïà¹ØÎĵµ£º
×òÌì¿´µ½ÁôÑÔ,ÓÚÊǽñÌìÓÖ°ÑһЩ¹¦Äܼӽø½øÈ¥ÁË
±ÈÈç,
1,³ÌÐò¿ÉÒÔ×îС»¯µ½ÏµÍ³ÍÐÅÌÇø
2,³ÌÐò¿ÉÒÔÅúÁ¿±£´æËùÓнعýµÄͼƬ
3,ÐÞÕýÁËÒÔǰµÄÒ»¸öСBUG,ÄǾÍÊÇÊäÈë±£´æÍ¼Æ¬µÄÎļþÃûʱ,Èç¹ûûÓÐÊäÈëºó׺Ãû,½«±£´æÕý³£,Èç¹ûÊäÈëÁ˺ó׺Ãû,½«»á±£´æ¸ñʽ³ö´í
´ò°üÎļþÇëµã»÷ÕâÀïÏÂÔØ,distÎļþ¼ÐÀïÃæµÄJARÎļþÊÇ¿ÉÒÔË«»÷Ö´ÐеÄ
¸Ð ......
Java ½Å±¾ API ¸ÅÊö
½Å±¾ÒýÇæ
½Å±¾ÒýÇæ¾ÍÊÇÖ¸½Å±¾µÄÔËÐл·¾³£¬ËüÄÜÄܹ»°ÑÔËÐÐÆäÉϵĽâÊÍÐÔÓïÑÔת»»Îª¸üµ×²ãµÄ»ã±àÓïÑÔ£¬Ã»Óнű¾ÒýÇæ£¬½Å±¾¾ÍÎÞ·¨±»ÔËÐС£
Java SE 6 ÒýÈëÁË¶Ô Java Specification Request£¨JSR£©223 µÄÖ§³Ö£¬JSR 223 Ö¼ÔÚ¶¨ÒåÒ»¸öͳһµÄ¹æ·¶£¬Ê¹µÃ Java Ó¦ÓóÌÐò¿ÉÒÔͨ¹ýÒ»Ì׹̶¨µÄ½Ó¿ÚÓë¸÷Öֽű ......
public static void main(String[] args){
SimpleDateFormat da = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
Calendar calendar = Calendar.getInstance();
Date date = calendar.getTime();
String aimTime ="2010-02-03 17:30:00.000";
int count = 0;
Date aimDate = d ......
¹Ø¼ü×Ö: byte String
ÎÊÌâ1£ºjavaÖÐûÓÐʵÏÖÕâÖÖ“byte a = 0xB2 --> String b = “B2””ת»»µÄ¼òµ¥ÊµÏÖÐèÒª×Ô¼ºÊµÏÖ¡£
´ð£º×Ô¼º±àдµÄת»»º¯Êý£¬Ë¼Â·½«byteµÄ¸ßµÍ4λ·Ö¿ª£¬·Ö±ðת»»Îª¶ÔÓ¦µÄ×Ö·ûÈ»ºóºÏ³É·µ»ØµÄ×Ö·û´®¡£
java ´úÂë
public static String byteToString(byte b) { ......
±¾ÎĽéÉÜJava SwingÖеÄJTreeÄ£ÐÍ£¬½éÉÜÈçºÎ´´½¨¡¢Ð޸ġ¢±éÀú£¬ÉèÖÃÊ÷¡£²Î¿¼Core Java2Ïà¹ØÕ½ڼ°ÆäÔ´´úÂë¡£
SwingÊ÷ʹÓÃÈËÃÇËùÊìϤµÄÎļþ¼ÐºÍÊ÷ҶͼÀ´ÏÔʾ·Ö²ãµÄÊý¾Ý¡£Ê÷Óɽڵã×é³É£¬½Úµã¿ÉÒÔÊÇÎļþ¼Ð£¬Ò²¿ÉÒÔÊÇÊ÷Ò¶¡£Îļþ¼Ð¿ÉÒÔÓÐ×ӽڵ㣬³ý¸ù½ÚµãÖ®ÍâµÄËùÓнڵ㶼ֻÓÐÒ»¸ö¸¸½Úµã¡£¿ÕµÄÎļþ¼ÐÓëÊ÷Ò¶µÄ²»Í¬Ö®´¦¾ÍÔÚÓÚËüÔÊ ......