Question

无法解析导入 java.util.Arraylist 怎么解决啊

给一下具体解决方法吧。代码如下：
import java.math.BigInteger;
import java.util.Arraylist;
public class UseArrayList
{
public static void main(string[] args)
{
ArrayList alist = factorial(35);
for(int i = 0;i < alist.size();i++)
{
System.out.println(i + "!=" + alist.get(i));
}
}
public static ArrayList factorial(int x)
{
ArrayList alist = new ArrayList();
alist.add(BigInteger.valueOf(1));
for(int i =alist.size();i < x;i++)
{
BigInteger lastfact = (BigInteger)alist.get(i-1);
BigInteger nextfact = lastfact.multiply(BigInteger.valueOf(i));
alist.add(nextfact);
}
return alist;
}
}

Answer 1

import java.util.Arraylist;
这句大小写错了吧， ArrayList