Article View: cn.bbs.comp.lang.java
Article #22759ibm��jvm����Ч�ʱ�sun�ĸ�
From: �����ӽ�����....
Date: Fri, 05 Sep 2003 03:20
Date: Fri, 05 Sep 2003 03:20
79 lines
2831 bytes
2831 bytes
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import java.util.*;
public class Test{
public static void main(String args[]){
int i,j;
int n=600000;
Collection c=new ArrayList();
long t=System.currentTimeMillis();
for(i=0;i<20;i++){
long t2=System.currentTimeMillis();
for(j=0;j<n;j++){
c.add(new String("to take some space"+j));
}
System.out.println(System.currentTimeMillis()-t2);
c=new ArrayList();
}
System.out.println(System.currentTimeMillis()-t);
}
}
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X-Google-Language: ENGLISH,GB X-Google-Thread: f6cb0,b082984b0663c402,start X-Google-Attributes: gidf6cb0,public X-Google-ArrivalTime: 2003-09-04 20:23:06 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-03!sn-xit-01!sn-xit-06!sn-xit-08!sn-xit-09!supernews.com!newsfeed.news2me.com!canoe.uoregon.edu!logbridge.uoregon.edu!newsgate.cuhk.edu.hk!news.zixia.net!news.neu.edu.cn!SJTU From: jawahh.bbs@bbs.sjtu.edu.cn (�����ӽ�����....) Newsgroups: cn.bbs.comp.lang.java Subject: ibm��jvm����Ч�ʱ�sun�ĸ� Date: 05 Sep 2003 03:20:55 GMT Organization: ��ˮ˼Դ Message-ID: <489MEa$AGO@bbs.sjtu.edu.cn> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 8bit X-Filename: Java/M.1062729924.A Lines: 79