package lektion2;
/**
 * @author nml
 * 
 */
public class Person {

	protected Cprno cpr;
	protected String name;
	protected String address;
	protected double balance;

	public Person(Cprno cpr, String name, String address, double balance) {
		this.cpr = cpr;
		this.name = name;
		this.address = address;
		this.balance = balance;
	}

	public String getName() {
		return this.name;
	}

	public String getAddress() {
		return this.address;
	}

	public double getBalance() {
		return this.balance;
	}

	public String getCpr() {
		return this.cpr.toString();
	}

	public void addBalance(double amount) {
		this.balance += amount;
	}

	public void setBalance(double amount) {
		this.balance = amount;
	}

	@Override
	public String toString() {
		String s = this.name + " " + this.cpr.toString() + " " + this.address;
		return s;
	}

	public static void main(String[] args) {
		Cprno cpr1 = new Cprno(311882945);
		Person p1 = new Person(cpr1, "Lucas", "Belleville", 0);
		System.out.println(p1.toString());
	}
}

package lektion2;
public class Borrower extends Person {

	private final boolean newsletter;
	private final String email;
	private final String[] interests;

	public Borrower(Person p, boolean newsletter, String email,
			String[] interests) {
		super(p.cpr, p.name, p.address, p.balance);
		this.newsletter = newsletter;
		this.email = email;
		this.interests = interests;
	}

	public String getEmail() {
		return this.email;
	}

	public boolean wantsNewsletter() {
		return this.newsletter;
	}

	public String showInterests() {
		String s = "";
		for (String interest : this.interests) {
			s += interest;
		}
		return s;
	}

	public boolean hasInterest(String lookForInterest) {
		boolean hasInterest = false;
		for (String currentInterest : this.interests) {
			if (lookForInterest == currentInterest) {
				hasInterest = true;
			}
		}
		return hasInterest;
	}

	public static void main(String[] args) {
		Cprno cpr1 = new Cprno(311882945);
		Person p1 = new Person(cpr1, "Lucas", "Belleville", 0);
		String[] interests = { "i1", "i2", "i3" };
		Borrower b1 = new Borrower(p1, false, "hahaha@wohoo.it", interests); // let's
																				// say
																				// the
																				// Person
																				// already
																				// exists..
		System.out.println(b1.toString() + " " + b1.getEmail());
		System.out.println("Interested in jogging? "
				+ b1.hasInterest("jogging"));
		System.out.println("Wants newsletters? " + b1.wantsNewsletter());
	}
}

package lektion2;
public class Librarian extends Person {

	private final double empFrac;
	private final String position;

	public Librarian(Cprno cpr, String name, String address, double balance,
			double empFrac, String position) {
		super(cpr, name, address, balance);
		this.empFrac = empFrac;
		this.position = position;
	}

	public boolean isFullTime() { // ..I'm not fluent with the concept of
									// employment fraction
		if (this.empFrac >= 1) { // I consider full-time an employee with an
									// empFrac >= 1
			return true;
		} else {
			return false;
		}
	}

	public String getPosition() {
		return this.position;
	}

	@Override
	public String toString() {
		String s = this.name + " " + this.cpr.toString() + " " + this.position;
		return s;
	}

	public static void main(String[] args) {
		Cprno cpr1 = new Cprno(311882945);
		Librarian l1 = new Librarian(cpr1, "Lucas", "Belleville", 0, 0.01,
				"Keeper of the Key");
		System.out.println(l1.toString());
		System.out.println(String.format("is %s hired fulltime? %s", l1.name,
				l1.isFullTime()));
	}
}

package lektion2;
public class Cprno {
	private long cprno;

	public Cprno() {

	}

	public Cprno(long cprno) {
		this.cprno = cprno;
	}

	public long getCprno() {
		return this.cprno;
	}

	public void setCprno(long cprno) {
		this.cprno = cprno;
	}

	public boolean checkCprno() {
		long sum;
		long restcpr = this.cprno;
		sum = 0L;

		sum += restcpr % 10 * 1;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 2;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 3;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 4;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 5;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 6;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 7;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 2;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 3;
		restcpr = restcpr / 10;
		sum += restcpr % 10 * 4;
		restcpr = restcpr / 10;

		if (sum % 11 == 0 && sum != 0) {
			return true;
		} else {
			return false;
		}
	}

	@Override
	public String toString() {
		String aString = "";
		long iLong;
		iLong = this.cprno / 10000;
		if (iLong < 100000)
			aString += "0";
		aString += Long.toString(iLong);
		aString += "-";
		iLong = this.cprno % 10000;
		if (iLong < 1000)
			aString += "0";
		if (iLong < 100)
			aString += "0";
		if (iLong < 10)
			aString += "0";
		aString += Long.toString(iLong);
		return aString;
	}

}

package lektion2;
public class Palindrome {
	public static final String RGX = "[ ,.:,-?!]"; // punctuation

	private static char first(String word) {
		return word.charAt(0);
	}

	private static char last(String word) {
		return word.charAt(word.length() - 1);
	}

	private static String middle(String word) {
		return word.substring(1, word.length() - 1);
	}

	/**
	 * This method prepares the string to be tested all chars to lower, all
	 * white space and punctuation removed. If done from caller it's done only
	 * once, if done from isPalindrome it's done on each recursive call
	 */
	public static String clean(String word) { // remove punctuation etc
		word = word.toLowerCase();
		return word.replaceAll(Palindrome.RGX, "");
	}

	public static boolean isPalindrome(String word) {
		if (word.length() == 1)
			return true;
		else if (word.length() == 2)
			return first(word) == last(word);
		else {
			System.out.println(first(word) + " - " + middle(word) + " - "
					+ last(word));
			return first(word) == last(word) && isPalindrome(middle(word));
		}
	}
}

package lektion2;
import javax.swing.JOptionPane;

/**
 * @author nml
 * 
 */
public class WordPlay {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String t;
		String s = JOptionPane.showInputDialog("Enter a phrase: ");
		String u = Palindrome.clean(s); // remove white noise
		if (Palindrome.isPalindrome(u))
			t = s + "\nis a palindrome";
		else
			t = s + "\nis not a palindrome";
		JOptionPane.showMessageDialog(null, t);
		System.out.println(t);
	}
}