Finding Grades of Students by after taking input from user.

import java.util.*;
class Grade
{
  public static void main(String []args)
{
  int no;
  Scanner sc = new Scanner(System.in);
  System.out.println("Enter Marks[>=0 and <=100]:");
  no = sc.nextInt();
  System.out.println("Grade:");
  if(no<40)
    System.out.println("F");
  else if(no>=40 && no<60)
    System.out.println("C");
  else if(no>=60 && no<80)
    System.out.println("B");
  else if(no>=80 && no<=100)
    System.out.println("A");      //highest
}
}