public class BeschneideString {
    public String cutFront(String txt, String teil, int number) {
        for (int i = 0; i < number; i++) {
            txt = txt.substring(txt.indexOf(teil) + 1, txt.length());
        }
        return txt;
    }

    public String cutBack(String txt, String teil, int number) {
        for (int i = 0; i < number; i++) {
            txt = txt.substring(0, txt.lastIndexOf(teil));
        }
        return txt;
    }
}