java£º´óÊý¾ÝÎļþдÈ룬¶ÁÈ¡£¬·Ö¸î£¬ÅÅÐò£¬ºÏ²¢
package arrays.file;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Random;
public class ConcludeCombinationSortWrite {
/**
* ´óÊý¾ÝÅÅÐòºÏ²¢
*
* @param args
*/
public static void main(String[] args) throws IOException {
// дÈëÎļþµÄ·¾¶
String filePath = "D:\\456";
// ÇзÖÎļþµÄ·¾¶
String sqlitFilePath = "D:\\456\\123";
//Êý¾ÝµÄ¸öÊý
int CountNumbers=10000000;
//×ÓÎļþµÄ¸öÊý
int CountFile=10;
//¾«¶È
int countAccuracy=30*CountFile;
long startNumber=System.currentTimeMillis();
// дÈë´óÊý¾ÝÎļþ
WriteData(filePath,CountNumbers);
System.out.println("´æ´¢Íê±Ï");
// ½«´óÊý¾ÝÎļþÇзֵ½ÁíÍâµÄÊ®¸öСÎļþÖÐ
sqlitFileDate(filePath, sqlitFilePath,CountFile);
System.out.println("ÎļþÇиîÍê±Ï£¡");
// °Ñÿ¸öÎļþµÄÊý¾Ý½øÐÐÅÅÐò
singleFileDataSort(sqlitFilePath,CountFile);
System.out.println("ÿ¸ö×ÓÎļþÅÅÐòÍê±Ï£¡");
//¾«¶Èµ÷Õû£¬Ê®¸öÎļþÊý¾Ý½øÐбȽÏÕûºÏ
deathDataFile(filePath,sqlitFilePath,countAccuracy,CountFile);
System.out.println("ÕûºÏÍê±Ï");
long stopNumber=System.currentTimeMillis();
System.out.println("ºÄʱ"+(stopNumber-startNumber)/1000+"ºÁÃë");
}
// дÈë´óÊý¾ÝÎļþ
public static void WriteData(String path,int CountNumbers) throws IOException {
path = path + "\\12114.txt";
FileWriter fs = new FileWriter(path);
BufferedWriter fw=new BufferedW
Ïà¹ØÎĵµ£º
ʹÓÃÀ༯²»½ö¿ÉÒÔ±íʾ³öÒ»¶ÔÒ»µÄ¹ØÏµ£¬Ò²¿ÉÒÔ±íʾ³ö¶à¶Ô¶àµÄ¹ØÏµ¡£ÀýÈ磬һ¸öѧÉú¿ÉÒÔÑ¡¶àÃſγ̣¬Ò»Ãſγ̿ÉÒÔÓжà¸öѧÉú²Î¼Ó£¬ÄÇôÕâ¾ÍÊÇÒ»¸öµäÐ͵Ķà¶Ô¶à¹ØÏµ¡£
ÒªÍê³É±¾³ÌÐò£¬Ê×ÏÈÓ¦¸Ã¶¨ÒåÁ½¸öÀࣺѧÉúÐÅÏ¢ÀàStudent¡¢¿Î³ÌÐÅÏ¢ÀàCourse¡£ÔÚÒ»¸öѧÉúÀàÖдæÔÚÒ»¸ö¼¯ºÏ£¬±£´æÈ«²¿µÄ¿Î³Ì£»¶øÔڿγÌÀàÖ ......
ÉùÃ÷×Ö¶ÎÓ³Éä
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface FiledRef
{
String fieldName();
}
ÉùÃ÷±íÓ³Éä
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface TableRef
{
& ......
¹«Ë¾Óõ½´®¿Ú±à³Ì£¬¹Ê¿ªÊ¼Ñо¿£¬Ê×ÏÈËѵ½µÄÊÇjavacomm20-win32.zipÕâ¸öѹËõ°ü£¬°´ÕÕÍøÉϵݲװÅäÖúã¬ÈçÏ£º
API
ÔÚjavax.commÏÂÓÐ13¸öÀàºÍ½Ó¿Ú£¬·Ö±ðÊÇ
4¸ö½Ó¿Ú
CommDriver ¿É¸ºÔØÉ豸£¨the loadable device£©Çý¶¯³ ......
Êý¾Ý¿âÁ¬½Ó³Ø£¬ÊÇÒ»ÖÖÏ൱ʵÓõÄÓ¦ÓóÌÐò¡£Ëü¿ÉÒÔ±£´æ¡¢Î¬»¤¼°´´½¨Óû§ËùÐèµÄÊý¾Ý¿âÁ¬½Ó¡£´Ó¶øÊ¹µÃÓû§µÃµ½Ò»¸öÁ¬½ÓµÄʱ¼ä½µµÍ90%ÒÔÉÏ¡£´ó´óÌáÉýÁËÊý¾Ý¿â·ÃÎʵķ´Ó¦Ê±¼ä¡£
Õâ¸öÊÇÒ»¸ö¿ªÔ´µÄ´úÂë¡£´ó¼Ò¿ÉÒÔÐÞ¸ÄËü¡¢Ê¹ÓÃËü¡£
Ï£ÍûÎҵĴúÂëÄܶԴó¼ÒÓÐÓá£
´Ë´úÂ룬¾¹ý1000ÊýÁ¿¼¶µÄ¶àÏ̲߳¢·¢·ÃÎʲâÊÔ¡£ÔÚËĺËCPUÏÂÒ²½øÐÐ ......
Ò»£ºÒª½â¾öµÄÎÊÌâ
ÎÒÃÇÔÚ³¢ÏÊ JDK1.5 µÄʱºò£¬ÏàÐŲ»ÉÙÈËÓöµ½¹ý Unsupported major.minor version 49.0
´íÎ󣬵±Ê±¶¨»áãȻ²»ÖªËù´ë¡£ÒòΪ¸Õ¿ªÊ¼ÄÇ»á¶ù£¬ÍøÉÏÓë´ËÏà¹ØµÄÖÐÎÄ×ÊÁÏ»¹²»¶à£¬ÏÖÔÚºÃÁË£¬ÍøÉÏÒ»ÕÒ¾ÍÖªµÀÊÇÈçºÎ½â¾ö£¬´ó¶à»á¸æËßÄãҪʹÓà JDK
1.4 ÖØÐ±àÒë¡£ÄÇôÖÁÓÚΪʲô£ ......