CONDITIONAL : IF, SWITCH CASE

import java.util.Scanner;

public class operWhen {

    public static void main(String[] args) {
        char texts;
        String text;
        boolean check, cheque;

        Scanner entry = new Scanner(System.in);
        System.out.print("Your Value A to E: ");

        text = entry.nextLine(); // String
        texts = text.charAt(0); // String to Char
        check = Character.isLetter(texts); // Char to Boolean

        if (check == true) {
            switch (text) {
                case "A":
                    System.out.println("CUM LAUDE");
                    break;
                case "B":
                    System.out.println("GOOD");
                    break;
                case "C":
                    System.out.println("ENOUGH");
                    break;
                case "D":
                    System.out.println("GRADUATE");
                    break;
                case "E":
                    System.out.println("NOT GRADUATE");
                    break;
                }
        } else {
            System.out.println("F A L S E");
            }
    }
}