public static void main(String[] args) {
        System.out.println(new FindAndReplaceString().findReplaceString("abcd", new int[] {
                0, 2
        }, new String[] {
                "a", "cd"
        }, new String[] {
                "eee", "ffff"
        }));
    }
Why Did you create this class? what does it do?
src/problems/medium/FindAndReplaceString.java