view src/main/java/jp/ac/u_ryukyu/ie/cr/tatsuki/xml/UntilTreeMapPutTime.java @ 18:190890be73e4

TreeMap memory and TreeMap get
author one
date Fri, 26 Dec 2014 12:04:00 +0900
parents 917ecf2c7350
children
line wrap: on
line source

package jp.ac.u_ryukyu.ie.cr.tatsuki.xml;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.TreeMap;

public class UntilTreeMapPutTime {

  public static void main(String args[]) throws IOException {
    File file = new File("./time/untilGet");
    PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(file)));
    TreeMap<Integer, Integer> map = new TreeMap<Integer,Integer>();
    for (int count = 0; count <= 30000; count++) {
      long t1 = System.currentTimeMillis();
      map.put(count, count);
      long t2 = System.currentTimeMillis();
      int aaa = map.get(count);
      long t3 = System.currentTimeMillis();
      if ((count % 100) == 0) {
      System.out.println("put time " + count + " " + (t2 - t1));
      System.out.println("get time " + count + " " + (t3 - t2));

      pw.println(count + " " + (t3 - t2));
      }
    }
    pw.close();
  }
}