Java List遍历方法 及其效率对比

One:14109
Two:14000
Three:15141
four:14297
package com.zbalpha.test;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class ListTest {
    public static void main(String args[]){
        List<Long> lists = new ArrayList<Long>();
        for(Long i=0l;i<1000000l;i++){
            lists.add(i);
        }
       
        Long oneOk = oneMethod(lists);
        Long twoOk = twoMethod(lists);
        Long threeOk = threeMethod(lists);
        Long fourOk = fourMethod(lists);
       
        System.out.println("One:" + oneOk);
        System.out.println("Two:" + twoOk);
        System.out.println("Three:" + threeOk);
        System.out.println("four:" + fourOk);
       
    }
   
    public static Long oneMethod(List<Long> lists){
       
        Long timeStart = System.currentTimeMillis();
        for(int i=0;i<lists.size();i++)    {
            System.out.println(lists.get(i));
        }
        Long timeStop = System.currentTimeMillis();
        return timeStop -timeStart ;
    }
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