Using a switch statement, write a menu driven program to convert a giv

1.	Using a switch statement, write a menu driven program to convert a given temperature from Fahrenheit to Celsius and vice versa. For an incorrect choice, an appropriate error message should be displayed.(HINT : C = 5/9 × (F – 32) and F = 1.8 × (C + 32)
Answer» import java.io.; class Temp { public static void main(String arg[ ])throws IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int choice; double f=0, c=0; System.out.println(“Menu”); System.out.printing(“Fahrenheit to Celsius”); System.out.println(“2.Celsius to Fahrenheit”); System.out.println(“3.Wrong choice.Re-enter”); System.out.println(“Enter your choice(l-3):”); choice=Integer.parseInt(br.readLine()); switch(choice) { case 1 : System.out.println(“Enter the value of Fahrenheit”); f=Double.parseDouble(br.readLine()); c=5/9 (f-32); System.out.println(“Temperature Fahrenheit to Celsius =”+c); break; case 2 : System.out.println(“Enter the value of Celsius”); c=Double.parseDouble(br.readLine()); f=1.8*(c+32); System.out.println(“Celsius to Fahrenheit =”+f); break; default : System.out.println(“Wrong choice! Re-enter”); break; } } }

Using a switch statement, write a menu driven program to convert a given temperature from Fahrenheit to Celsius and vice versa. For an incorrect choice, an appropriate error message should be displayed.(HINT : C = 5/9 × (F – 32) and F = 1.8 × (C + 32)

Answer»

import java.io.*;

class Temp

{

public static void main(String arg[ ])throws IOException

{

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

int choice;

double f=0, c=0;

System.out.println(“Menu”);

System.out.printing(“Fahrenheit to Celsius”);

System.out.println(“2.Celsius to Fahrenheit”);

System.out.println(“3.Wrong choice.Re-enter”);

System.out.println(“Enter your choice(l-3):”);

choice=Integer.parseInt(br.readLine());

switch(choice) { case 1 : System.out.println(“Enter the value of Fahrenheit”);

f=Double.parseDouble(br.readLine()); c=5/9 * (f-32);

System.out.println(“Temperature Fahrenheit to Celsius =”+c);

break;

case 2 :

System.out.println(“Enter the value of Celsius”);

c=Double.parseDouble(br.readLine());

f=1.8*(c+32);

System.out.println(“Celsius to Fahrenheit =”+f);

break;

default :

System.out.println(“Wrong choice! Re-enter”);

break;

}