我该如何解决这一系列错误？

Question

我正在尝试编写一个测试ArrayList的二进制搜索的程序，但是我一直在收到我不知道如何修复的错误。

这是我的二进制搜索代码：

import java.util.ArrayList;

public class BinarySearchTest  {

    public static void main(String[] args)
    {

        ArrayList<Integer> searchable = new ArrayList<Integer>();
        for (int i = 1; i <= 10; i++)
              searchable.add(i);
        int someNumber = 7;
        int index = binarySearch(searchable, someNumber, 0, searchable.size()));
        System.out.println(someNumber + ((index == -1) ? " is not in the array" : (" is at index " + index)));
    }

    public static boolean binarySearch(ArrayList<Integer> searchable, int check, int lo, int hi)
    {
        int first = 0;
        int last = searchable.size() - 1;
        int mid;
        while(first <= last)
        {
            mid = first + (last - first) / 2;
            if(check == searchable.get(i).getTotal())
            {
                return true;
            }else if(searchable.compareTo(searchable.get(i)) < 0)
            {
                last = mid - 1;
            }else
            {
                first - mid + 1;
            }
        }
        return false;
    }
}

返回的错误是：

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
    The type of the expression must be an array type but it resolved to ArrayList<Integer>
    The type of the expression must be an array type but it resolved to ArrayList<Integer>

    at BinarySearchTest.binarySearch(BinarySearchTest.java:24)
    at BinarySearchTest.main(BinarySearchTest.java:13)

我认为这与我的binarySearch方法有关，需要调整它以使用ArrayList而不仅仅是常规数组。