i cant understand how to do
package zh.codegym.task.task08.task0809;
import java.util.ArrayList;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
/*
10000 次插入所需的时间
*/
public class Solution {
public static void main(String[] args) {
System.out.println(getInsertTimeInMs(new ArrayList()));
System.out.println(getInsertTimeInMs(new LinkedList()));
}
public static long getInsertTimeInMs(List list) {
// 在此编写你的代码
Date time=new Date();
insert10000(list);
// 在此编写你的代码
long value=time.getTime();
return value;
}
public static void insert10000(List list) {
for (int i = 0; i < 10000; i++) {
list.add(0, new Object());
}
}
}