Program Mencari Luas Segi Tiga Dengan Java

coding:
import java.util.Scanner;
public class LuasSegiTiga {
public static void main (String args[])
{
int a, t;
double i;
Scanner sc = new Scanner (System.in);

System.out.print("Masukan Nilai Alas : ");
a = sc.nextInt();
System.out.print("Masukan Nilai Tinggi : ");
t = sc.nextInt();

i = (double) ((a*t)/2);

System.out.println("Alas :"+a);
System.out.println("Tinggi :"+t);
System.out.println("Luas :"+i);


}
}