TemperatureConverter.java

import java.util.Scanner;

public class TemperatureConverter {

    // Method to convert Celsius to Fahrenheit
    public static double celsiusToFahrenheit(double celsius) {
        return (celsius * 9 / 5) + 32;
    }

    // Method to convert Fahrenheit to Celsius
    public static double fahrenheitToCelsius(double fahrenheit) {
        return (fahrenheit - 32) * 5 / 9;
    }

    public static void main(String[] args) {
        // Create a Scanner object to read input
        Scanner scanner = new Scanner(System.in);

        // Prompt the user for the temperature value
        System.out.print("Enter the temperature value: ");
        double temperature = scanner.nextDouble();

        // Prompt the user for the unit of measurement (C for Celsius, F for Fahrenheit)
        System.out.print("Enter the unit of measurement (C for Celsius, F for Fahrenheit): ");
        char unit = scanner.next().charAt(0);

        // Convert and display the result based on the unit
        if (unit == 'C' || unit == 'c') {
            // Convert from Celsius to Fahrenheit
            double fahrenheit = celsiusToFahrenheit(temperature);
            System.out.printf("%.2f Celsius is equal to %.2f Fahrenheit.%n", temperature, fahrenheit);
        } else if (unit == 'F' || unit == 'f') {
            // Convert from Fahrenheit to Celsius
            double celsius = fahrenheitToCelsius(temperature);
            System.out.printf("%.2f Fahrenheit is equal to %.2f Celsius.%n", temperature, celsius);
        } else {
            // If the user enters an invalid unit
            System.out.println("Invalid unit. Please enter 'C' for Celsius or 'F' for Fahrenheit.");
        }

        // Close the scanner
        scanner.close();
    }
}