ProgBasics04Nested-Statements-P01PersonalTitles

import java.util.Scanner;

public class P01PersonalTitles {
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);

        double age = Double.parseDouble(scanner.nextLine());
        String gender  = scanner.nextLine();

        if (gender.equalsIgnoreCase("f")) {
            if (age < 16) {
                System.out.println("Miss");
            } else {
                System.out.println("Ms.");
            }
        } else if (gender.equalsIgnoreCase("m")) {
            if (age < 16) {
                System.out.println("Master");
            } else {
                System.out.println("Mr.");
            }
            }
        }
    }