public class Dreptunghi {
	int lung,lat;
	 public Dreptunghi(){}
	 public Dreptunghi(double lung,double lat) {
	 	this.lung=lung;
	 	this.lat=lat;
	 	}
	 	double arie() {
	 		return lung*lat;
	 		}
	 	double perimetru(){
	 		return (2*lung)+(2*lat);
	 		}
	 		void afisare(){
	 			System.out.println("lungime"+lung,"latime"+lat);

	 			}

	 			public static void main(String [] args) {
	 				Dreptunghi d=new Dreptunghi(3,5);
	 				System.out.println(d.arie());

	 				}
	}