program about students grants

Question

import java.util.Scanner;

public class main {

public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.print("Input a number: ");
double num = in.nextInt();
if (num>3.5) {
System.out.print("Congratulations!");
}
else if (num<3.5) {
System.out.print("Sorry,try again");
}

}
}

This program work only when i imput 1,2,3,4,5 , but not work when i try 1.1 1.2, why?

Answer 1

Use in.nextDouble() instead of in.nextInt().