Why is it giving error of not being able to compare to an int?

Question

import java.util.Scanner;
public class check{
public static void main(String[]args){
boolean a;
Scanner x=new Scanner(System.in);
a=x.nextBoolean();

if (a==0)
System.out.println("Fail");
else
System.out.println("Pass");
}
}

Answer 1

compare it to boolean

if(a==false) or if(a==true)
you can make it simpler by
if(a) or if(!a)

Answer 2

you cant compare boolean with int in java
compare boolean with boolean or int with int.

Answer 3

Then what should I do