javalab2.java

import java.util.Scanner;

public class javalab2 
{
    public static void main(String[] args) 
    {
        double converted;
        Scanner sr = new Scanner(System.in);

        System.out.print("Enter temperature scale (F for Fahrenheit, C for Celsius): ");
        String ch = sr.nextLine().toUpperCase(); // Convert input to uppercase for uniformity

        System.out.print("Enter temperature value: ");
        double temp = sr.nextDouble();

        switch (ch) 
        {
            case "F":
                converted = (temp - 32) * (5.0 / 9);
                System.out.println("Temperature in Celsius: " + converted);
                break;

            case "C":
                converted = (1.8 * temp) + 32;
                System.out.println("Temperature in Fahrenheit: " + converted);
                break;

            default:
                System.out.println("Invalid input! Please enter 'C' or 'F'.");
        }

        sr.close();
    }
}