import java.util.LinkedList;
import java.util.List;

import prog.io.ConsoleOutputManager;
import prog.utili.Figura;

class Utilita {
	
	public static int somma( List<Integer> list) {
		int s = 0;
		for ( int x: list ) s += x;
		return s;
	}

	public static void stampaLista( List<?> list ) {
		ConsoleOutputManager out = new ConsoleOutputManager();
		for ( Object x: list ) out.println( x );
	}
	
	public static<T> boolean presente( List<T> list, T x ) {
		for ( T y: list ) 
			if ( y.equals( x ) ) return true;
		return false;
	}
	
	public static double sommaAree( List<? extends Figura> list ) {
		double s = 0;
		for ( Figura f: list ) s += f.getArea();
		return s;
	}
	
	public static<T> T mediano( List<T> list ) {
		return list.get( list.size() / 2 );
	}
	
	
	
}


public class EsempioGenericiComeArgomenti {
	
	public static void main( String[] args ) {
		ConsoleOutputManager out = new ConsoleOutputManager();
		
		// Somma interi
		List<Integer> listaInteri = new LinkedList<Integer>();
		listaInteri.add( 5 );
		listaInteri.add( 12 );
		listaInteri.add( 3 );
		listaInteri.add( 7 );
		out.println( Utilita.somma( listaInteri ) );
		
		Utilita.stampaLista( listaInteri );
		
		out.println( Utilita.presente( listaInteri, 5 ) );
		
		// Mediano
		out.println( "Mediano = " + Utilita.mediano( listaInteri ) );
	}

}