Java_Fundamentals/Probability.java at main · devdeepak06/Java_Fundamentals · GitHub

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import java.util.Scanner;

public class Probability {

public static double factorial(double num){

int fact=1;

for(int i=2;i<=num;i++){

fact*=i;

}

return fact;

}

public static int probability(int n,int x){

double Ns,Ne1,Ne2;

int Pe;

Ns=factorial(8.0)/(factorial(n*1.0)*factorial(8.0-n));

Ne1=factorial(4.0)/(factorial(x*1.0)*factorial(4.0-x));

Ne2=factorial(4.0)/(factorial(((n-x)*1.0))*factorial((4.0-(n-x))));

Pe=(int)(((Ne1*Ne2)/Ns)*100);

return Pe;

}

public static void main(String[] args){

try (Scanner s = new Scanner(System.in)) {

int n = s.nextInt();

int x = s.nextInt();

int result = probability(n, x);

System.out.println(result);

}

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