阿里面试题，求字符串的里重叠字符串，并装进一个数组

public static  String[] findReduplication(String text) {
    int length = text.length();
    String[] str = new String[length];
    int count = 0; int i = 0, j = 0;
    for (; i < length - 1; i++) {
        for (j = i + 1; j < length; j++){
            if(text.substring(i,i+1).equals(text.substring(j,j+1))) {
                 continue;
            }
            else break;
        }
        if(j - i > 1){
            str[count++] = text.substring(i,j);
        }
        i = j - 1;
    }
    String str1[] = new String[count];
    for (int k = 0; k < count && str[k] != null; k++) {
        str1[k] = str[k];
    }
    return  str1;
}