public class Variabili
{   public static void main(String[] args)
    {   int i1, i2, i3;
    	long l;
		double media;
    	
    	i1 = 2000000000;
    	i2 = 2000000000;
    	i3 = i1 + i2;
    	System.out.print("i1 vale ");
    	System.out.println(i1);
    	System.out.print("i2 vale ");
    	System.out.println(i2);
    	System.out.print("i3, somma di i1 e i2, vale ");
    	System.out.print(i3);
    	System.out.println(" (si e' verificato un overflow)");
    	System.out.print("anche la stampa diretta di i1+i2 fornisce ");
    	System.out.println(i1+i2);

		l = i1 + i2;    
    	System.out.println();
    	System.out.print("l, variabile long somma di i1 e i2, vale ");
    	System.out.println(l);
    	
    	l = i1 + (long)i2;
    	System.out.println();
    	System.out.println("l e' stata assegnata ora ricorrendo");
    	System.out.println("ad una conversione esplicita");
    	System.out.print("l = i1 + (long)i2, e vale ");
    	System.out.println(l);
    	System.out.println();
    	
		i1 = 10;
		i2 = 11;
    	System.out.println("i1 vale " + i1 + "; i2 vale " + i2);

		media = (i1+i2)/2;
    	System.out.println("media = (i1+i2)/2");
    	System.out.println("media contiene ora " + media);
    	System.out.println();

		media = (i1+i2)/2.0;
    	System.out.println("media = (i1+i2)/2.0");
    	System.out.println("media contiene ora " + media);
    	System.out.println();
		
	}
}