java±Ê¼Ç
javaÖпÆѧ¼ÆÊý·¨µÄ½â³ý
Êý¾Ý¹ý´ó»ò½Ó½üÓÚ0£¬java»á×Ô¶¯Ê¹ÓÿÆѧ¼ÆÊý·¨ÏÔʾ
ҪʹµÃÊý¾ÝÒÔÕý³£µÄСÊýÏÔʾ¿ÉʹÓÃDecimalFormatÀࣺ
DecimalFormat format = new DecimalFormat("0.00000");
String value = format.format(doubleInstance);
Ïà¹ØÎĵµ£º
//1.±àдһ¸ö³ÌÐò£¬¸Ã³ÌÐò¿É¶ÁÈëÒ»¸öÍⲿÎļþ£¬²¢½«ÎļþÄÚÈݸ³Öµ¸øÒ»¸ö×Ö·û´®
package Zhangyiwei
import java.io.*;
public class Zhangyiwei {
public static String filename = "c:\\1.txt";
public static void main(String[] args) throws FileNotFoundException, IO ......
JavaÍøÂç±à³Ì³õ²½
Kagula
2009-11-23
¹Ø¼ü´Ê
Java Socket DataInputStream DataOutputStream
¸ÅÒª
ʹÓÃJavaͬ²½IOÓ¦ÓóÌÐò¿â£¬ÊµÏÖCS½á¹¹ÍøÂç±à³Ì¡£
ÕýÎÄ
ʹÓÃSocketÀ´½¨Á¢ÍøÂçÁ¬½Ó£¬Ê¹ÓÃDataInputStream¡¢DataOutputStreamÀ´´æÈ¡ÍøÂçÁ÷¡£
¿Í»§¶Ë²¿·Ý
µÚÒ»²½ ......
ÁªÍ¨£º³¹µ×·ÅÆúORÓûÇܹÊ×Ý£¿
ÒµÄÚÈÕÇ°´«³öÏûÏ¢£¬ÓÉÓÚÆ»¹û¼á³Ö·Ö³Éģʽ£¬ÁªÍ¨¸ß²ã¶ÔÓÚÒýÈëÆ»¹û̬¶ÈÒÑÎÞÔçÏȼá¾ö¡£“Ëæ×ÅÊÖ»úµÄ²»¶Ï¸üл»´ú£¬Ò»µãÓпÉÄÜ°üº¬µÄ¹¦ÄÜÌرðÊÇÁªÍ¨¼ÓÈë¹È¸è¿ª·ÅÊÖ»úÁªÃË£¬ÔÚÊý¾Ý±£»¤ºÍ¼á¹ÌÐ×÷¼Æ»®ÍÆ×ÔÓпª·Å²Ù×÷ƽ̨ÊÖ»ú£¬ÔÚÊý¾Ý±£»¤ºÍ¼á¹ÌÐ×÷ javaµç×ÓÊéÃâ·ÑÏÂÔØiPhoneÔÚÆäÕ½ÂÔÖ ......
Enum×÷ΪSunÈ«ÐÂÒý½øµÄÒ»¸ö¹Ø¼ü×Ö£¬¿´ÆðÀ´ºÜÏóÊÇÌØÊâµÄclass, ËüÒ²¿ÉÒÔÓÐ×Ô¼ºµÄ±äÁ¿£¬¿ÉÒÔ¶¨Òå×Ô¼ºµÄ·½·¨£¬¿ÉÒÔʵÏÖÒ»¸ö»òÕ߶à¸ö½Ó¿Ú¡£ µ±ÎÒÃÇÔÚÉùÃ÷Ò»¸öenumÀàÐÍʱ£¬ÎÒÃÇÓ¦¸Ã×¢Òâµ½enumÀàÐÍÓÐÈçϵÄһЩÌØÕ÷¡£
¡¡ ......