public void versch() {
        for (int i = 0; i < vtext.length(); i++) {
            vBu = (int) vtext.charAt(i);
            vBu -= 65;
            vBu += shift;
            vBu = vBu % 57;
            vBu += 65;
            char blub = (char) vBu;
            String strpt = "";
            strpt = strpt.valueOf(blub);
            panetext = panetext.concat(strpt);
            // panetext = panetext.concat(" ");
        }
    }

    public void entsch() {
        for (int i = 0; i < etext.length(); i++) {
            if (!Character.isSpaceChar(etext.charAt(i))) {

                int aBu = (int) etext.charAt(i);
                aBu -= 65;
                aBu += shift;
                aBu = aBu % 57;
                aBu += 65;
                char blub = (char) aBu;
                String strpt = "";
                strpt = strpt.valueOf(blub);
                panetext = panetext.concat(strpt);

            }

        }
    }