如何删除char数组中的空位？

public char[] removeEmptySpaces(char[] input) {
    int count = 0;
    for (char c : input) {
        if (c != ' ' && c != 0) {
            count++;
        }
    }

    char[] result = new char[count];
    int index = 0;
    for (char c : input) {
        if (c != ' ' && c != 0) {
            result[index] = c;
            index++;
        }
    }

    return result;
}