import java.util.Scanner;
Scanner sc = new Scanner(System.in)

System.out.println("Háromszög területe")

System.out.print("Alap: ")
double base = sc.nextDouble()

System.out.print("Magasság: ")
double height = sc.nextDouble()

double area = base * height / 2

System.out.println("Terület: " + area)

/exit