public class Bank {
	private int[] BankAccount;
	private int count;

	public Bank(int size) {
		BankAccount = new int[size];
		count = 0;
	}

	private int indexOf(BankAccount a) {
		for (int i = 0; i < count; i++) {
			if (BankAccount[i].equals(a))
				return i;
		}
		return -1;
	}

	private void doubleCapacity() {
		count = count * 2;
	}

	public boolean contains(BankAccount a) {
		if (indexOf(a) != -1)
			return true;
		else
			return false;
		// return (indexOf(a) != -1);
	}

	public boolean add(int a) {
		if (count >= BankAccount.length)
			return false;
		if (contains(int a))
			return false;
		BankAccount[count] = a;
		count++;
		return true;
	}
	 public boolean remove(BankAccount a) {

		    if (!contains(a)) return false;
		    int loc = indexOf(a);

		    BankAccount[loc] = BankAccount[count - 1];
		    BankAccount[count - 1] = (Integer) null;
		    count--;
		    return true;
		  }
	 public int getCount() {
		    return count;
		  }
	 public String toString() {
		    StringBuilder sb = new StringBuilder();
		    for (int i = 0; i < count; i++) {
		      sb.append(BankAccount[i].toString());
		      sb.append("\n******************\n");
		    }
		    return sb.toString();
		  }
	 public static void sort(){

	 }
}