为什么我的函数在调用文本文件时不起作用？

Question

我的程序的目标是比较两个文本文件，并打印其中一个文本文件的罕见子序列。当我定义两个字符串数组，例如

String [] s1 = {"b","a","b","a","b"};
String [] s2 = {"b","a","b","b","a"};

进行比较，就可以了。 （它打印：[b a b a b , b a a b , b b a b , a b a b , a a b ]）但是它不适用于文本文件。该程序怎么了？我没有得到任何输出，程序也没有终止，这可能是由于无限循环造成的。

public class hess {
     static ArrayList<String> arr1 = new ArrayList<String>();
     static ArrayList<String> arr2 = new ArrayList<String>();

    public void printAllSubSequences(String[] arrInput) {
        int[] temp = new int[arrInput.length];
        int index = 0;
        solve(arrInput, index, temp);
    }

    private void solve(String[] arrInput, int index, int[] temp) {
        if (index == arrInput.length) {
            print(arrInput, temp);
            return;
        }
        // set the current index bit and solve it recursively
        temp[index] = 1;
        solve(arrInput, index + 1, temp);
        // unset the current index bit and solve it recursively
        temp[index] = 0;
        solve(arrInput, index + 1, temp);
    }

    private void print(String[] arrInput, int[] temp) {
        String result = "";
        for (int i = 0; i < temp.length; i++) {
            if (temp[i] == 1)
                result += arrInput[i] + " ";
        }
        arr1.add(result);
    }

    public void printAllSubSequences1(String[] arrInput) {
        int[] temp = new int[arrInput.length];
        int index = 0;
        solve1(arrInput, index, temp);
    }

    private void solve1(String[] arrInput, int index, int[] temp) {
        if (index == arrInput.length) {
            print1(arrInput, temp);
            return;
        }
        // set the current index bit and solve it recursively
        temp[index] = 1;
        solve1(arrInput, index + 1, temp);
        // unset the current index bit and solve it recursively
        temp[index] = 0;
        solve1(arrInput, index + 1, temp);
    }

    private void print1(String[] arrInput, int[] temp) {
        String result = "";
        for (int i = 0; i < temp.length; i++) {
            if (temp[i] == 1)
                result += arrInput[i] + " ";
        }
        arr2.add(result);
    }

    public static void main(String[] args) throws IOException {
        String[] s1 = read("C:\\Users\\fener\\Desktop\\producerconsumer\\1575229506551OutBug.txt");
        String[] s2 = read("C:\\Users\\ahmet\\Desktop\\bitirme\\producerconsumer\\1575371318152Out.txt");

        new hess().printAllSubSequences(s1);
        new hess().printAllSubSequences1(s2);
        System.out.println(arr1);
        System.out.println(arr2);
        arr1.removeAll(arr2);
        System.out.println(arr1);

    }

    private static String[] read(String location) throws IOException {
        BufferedReader reader1 = new BufferedReader(new FileReader(location));
        String line;
        ArrayList<String> lines = new ArrayList<String>();
        while ((line = reader1.readLine()) != null) {
            lines.add(line);
        }
        String[] result = new String[lines.size()];
        for(int i=0; i<lines.size(); i++) {
            result[i] = lines.get(i);
        }
        return result;
    }
}

'''