ÐèÒªÒ»¸öjava¹«¹²µÄתÐÍ·½·¨
public void castType(String str,String type){ str ÊÇ ÒÑÖªµÄ×Ö·û´®£¬ type ÊÇ ²é³öÀ´µÄÐèҪתµÄÀàÐÍ£¬£¨Èç integer»òfloat²»¶¨£© µ«È·¶¨str ¾ÍÊÇ Òª×ªµÄ type ÀàÐÍ ·½·¨·µ»ØÀàÐÍtypeµÄstrµÄÖµ }
ÎÒ¿´²»¶®Äã˵µÄÊÇʲô LZÒâ˼Ӧ¸ÃÊǸù¾Ý´«½øÈ¥Ò»¸ö×Ö·û´®ºÍÒ»¸öÀàÐÍ£¬·½·¨Àï½øÐÐת»»È»ºó·µ»Ø Èç¹ûÊÇÇ°ÃæÓÐÅжÏSTRÊÇʲôÀàÐÍÔÙ´«ÈëTYPE½øÐÐÏàӦת»»µÄ»° ·½·¨ÖØÔØÓ¦¸Ã¿ÉÒÔʵÏÖÄãÏëÒªµÄ¹¦ÄÜ¡£ û̫Àí½â£¬ÊÇÕâÑùÂ𣿠Java code: public static Object castType(String str,String type){ if("Integer".equals(type)){ return Integer.valueOf(str); }else if("Float".equals(type)){ return Float.valueOf(str); } return null; } ÀýÈç public float castType("19.9",float){ retrun ; } public String castType("fdada",String){ retrun ; } LZÊÇÕâ¸öÒâ˼Âð?ÒýÓà û̫Àí½â£¬ÊÇÕâÑùÂ𣿠Java codepublicstatic Object castType(String str,String type){if("Integer".equals(type)){return Integer.valueOf(str); }elseif("Float".equals(type)){return Float.valueOf(str); &nb
Ïà¹ØÎÊ´ð£º
ÎÒÏÖÔÚÏëÓÃsshÕûºÏÀ´×öÒ»¸öÂÛ̳£¬µ«Êý¾Ý¿â·½Ãæ²»ÐУ¬ÎÒÖ÷Òª²»»áÉæ¼°Êý¾Ý¿â£¬²»ÖªµÀ·¢Ìû±í£¬ºÍ»ØÌû±íÒªÈçºÎÉè¼ÆºÍÇø·Ö¡£²»ÖªµÀËÓÐÒ»¸ö¼òµ¥µÄ˼·£¬À´Éè¼ÆÕâЩ±í¡£Ð»Ð»ÁË¡£ ·¢ÌûºÍ»ØÌûÓÃͬһÕÅ±í ¡£·¢Ìû id user ......
import java.io.*; class FileTest { public static void main(String [] args) throws Exception { File fDir=new File(File.separator); String strFile="javaÔ´´úÂë²âÊÔ"+File.separato ......
ÓÃRandomAccessFileдÈëTXTÎļþ²é¿´Ê±ÊÇÂÒÂ룬ÇëÎÊÓÐʲô·½·¨¿ÉÒÔд³É¿É¶ÁµÄÎļþ£¬²»ÊÇÓÃÆäËûµÄÎļþ²Ù×÷£¬¾ÍÊÇÖ»ÓÃRandomAccessFileµÄ·½·¨ÊÇ·ñ¿ÉÒÔʵÏÖ£¿ Java code: import java.io.*; public class RandomAcce ......
´ó¼ÒºÃ£¬ÎÒÃǽüÆÚÕÐÆ¸È«Ö°¡¢¼æÖ°¿ª·¢¹¤³Ìʦ£¬È«Ö°¹¤³Ìʦ¹¤×÷µØµãÖ÷ÒªÊÇÉîÛÚ£¬¼æÖ°¹¤³Ìʦ±¾ÈË¿ÉÔÚÉîÛÚ£¬Ò²¿ÉÒÔÔÚÒìµØÍ¨¹ýÔ¶³ÌÐͬ¿ª·¢µÄ·½Ê½¿ªÕ¹¹¤×÷£¬ºÏ×÷·½Ê½¿É¹²Í¬É̶¨¡£ ְλE601£ºJava ¹¤³ÌÊ ......
import java.sql.Connection; import java.sql.Date; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class QueryTest&n ......