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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


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package arrays.compara;
/**
 *
 * @author Happy ¶þ·Ö²éÕÒ·¨
 */
public class BinarySearch {
 public static void main(String[] args) {
  int[] arrInt = { 2, 34, 32, 24, 23, 34, 12, 3, 4, 2 };
  int index = bSearch(29, arrInt, 0, arrInt.length);
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package arrays.compara;
import java.util.Arrays;
public class Student {
 public static void main(String[] args) {
  Stu[] stus = new Stu[]{
    new Stu(156,34,"ad"),
    new Stu(153,24,"cc"),
    new Stu(126,37,"ab"), ......
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