private void generate(int[] dateOfBirth, int gender) {
        int[] wholePesel = new int[11];
        wholePesel[9] = gender;
        for(int i=0;i<6;i++) {
            wholePesel[i] = dateOfBirth[i];
        }

        while(wholePesel[9] < 10) {
            wholePesel[8]++;

            if(wholePesel[8] > 9) {
                wholePesel[7]++;
                wholePesel[8] = 0;
            }

            if(wholePesel[7] > 9) {
                wholePesel[6]++;
                wholePesel[7] = 0;
            }

            if(wholePesel[6] > 9) {
                wholePesel[9] += 2;
                wholePesel[8] = 0;
                wholePesel[7] = 0;
                wholePesel[6] = 0;
            }

        for(int i=0;i<10;i++) {
            wholePesel[10] = i;
            boolean isPeselValid = checkIfPeselIsValid(wholePesel);
            if(isPeselValid == true) {
                long pesel = arrayToLong(wholePesel);
                peselList.add(pesel);
                }
            }
        }
    }


	private boolean checkIfPeselIsValid(int[] wholePesel) {

		int checkSum = wholePesel[0]+wholePesel[1]*3+wholePesel[2]*7+wholePesel[3]*9
				+wholePesel[4]*1+wholePesel[5]*3+wholePesel[6]*7+wholePesel[7]*9+wholePesel[8]*1
				+wholePesel[9]*3+wholePesel[10];

		if(checkSum%10==0) {
			return true;
		}

		return false;
	}