learn and dive into Java Course. if-else lecture

Main.java

import java.util.Scanner;

public class Main {

  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int grade = in.nextInt();

    if (grade >= 90) {
      System.out.println("A");
    } else if (grade >= 80) {
      System.out.println("B");
    } else if (grade >= 70) {
      System.out.println("C");
    } else if (grade >= 60) {
      System.out.println("D");
    } else {
      System.out.println("F");
    }
  }
}