gistfile1.txt

import java.util.Scanner;

public class TemperatureConverter {

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

        do {
            displayMenu();
            choice = getChoice(scanner);

            if (choice != 3) {
                double temperature = getTemperature(scanner);
                calculateAndDisplayTemperature(temperature, choice);
            }

        } while (choice != 3);

        System.out.println("Exiting program...");
        scanner.close();
    }

    public static void displayMenu() {
        System.out.println("\nTemperature Converter");
        System.out.println("1. Convert Fahrenheit to Celsius");
        System.out.println("2. Convert Celsius to Fahrenheit");
        System.out.println("3. Exit");
    }

    public static int getChoice(Scanner scanner) {
        System.out.print("Enter your choice (1-3): ");
        while (!scanner.hasNextInt()) {
            System.out.println("Invalid input. Please enter a number between 1 and 3.");
            scanner.next();
        }
        return scanner.nextInt();
    }

    public static double getTemperature(Scanner scanner) {
        System.out.print("Enter temperature: ");
        while (!scanner.hasNextDouble()) {
            System.out.println("Invalid input. Please enter a number.");
            scanner.next();
        }
        return scanner.nextDouble();
    }

    public static void calculateAndDisplayTemperature(double temperature, int choice) {
        double convertedTemperature;
        if (choice == 1) {
            convertedTemperature = (temperature - 32) * 5 / 9.0;
            System.out.printf("%.2f Fahrenheit is equal to %.2f Celsius\n", temperature, convertedTemperature);
        } else {
            convertedTemperature = (temperature * 9 / 5.0) + 32;
            System.out.printf("%.2f Celsius is equal to %.2f Fahrenheit\n", temperature, convertedTemperature);
        }
    }
}