public String toString() {
		StringBuilder builder = new StringBuilder();
		switch (typeOfEmployee) {
		case JUNIOR:
			builder.append("Junior");
			break;
		case MEDIOR:
			builder.append("Medior");
			break;
		case SENIOR:
			builder.append("Senior");
			break;
		}
		builder.append(" employee " + fullName);
		builder.append("\n" + salary.toString());
		
		return builder.toString();
	}