public class UtilityStringhe{
	public static void stampaIniziali(String nome, String cognome){
		System.out.println(nome.substring(0,1)+cognome.substring(0,1));
	}

	public static String iniziali(String nome, String cognome){
		return nome.substring(0,1)+cognome.substring(0,1);
	}

	public static String inverti(String str){
		String first = str.substring(0,1);
		String last = str.substring(str.length()-1,str.length());
		String mid = str.substring(1,str.length()-1);
		return last + mid + first;
	}

}