java h/t

package q1;
import java.util.Scanner;
public class q6 {
    public static void main(String[]args){
        Scanner keyboard = new Scanner(System.in);

        int count=1,head=0,tail=0;
        char toss = 0;


        while(count<=8){
            System.out.print("h/t ");
            toss = keyboard.next().charAt(0);
        switch(toss)
        {
            case'h':
            case'H':
                head++;
                count++;
                break;
            case't':
            case'T':
                tail++;
                count++;
                break;
            default:
                System.out.println("invalid");
        }

    }
        System.out.println("Heads x "+head);
        System.out.println("Tails x "+tail);
        System.out.println("Heads percent "+(head*100)/8.0);
        System.out.println("Tails percent "+(tail*100)/8.0);
}
}