Marci_szovegben_digit

  int i = 0;
  int j = 0;
  String temp = "";
  int sum = 0;

 for (i = 0; i < numbers.length(); i++) {
       if (Character.isDigit(numbers.charAt(i))) {
            for (j = i; j < numbers.length(); j++) {
                        if (Character.isDigit(numbers.charAt(j))) {
                            temp += numbers.substring(j, j + 1);

                        } else {
                            break;
                        }
                        i = j;
             }
             int biggerThan = Integer.parseInt(temp);
             if (biggerThan > 1000) {
                        biggerThan = 0;
             } else
                sum += biggerThan;
                temp = "";
                }
            }