### How to convert temperature degrees Fahrenheit to degrees Celsius and degrees Celsius to degrees Fahrenheit in a Java program ?.

 Tweet Program to demonstrate how to convert temperature degrees Fahrenheit to degrees Celsius and degrees Celsius to degrees Fahrenheit in Java. ```import java.util.Scanner; public class TemperatureConversion { public static void main(String[] args) { // Creating a Scanner object using a constructor // which takes the System.in object. There are various // constructors for Scanner class for different // purposes. We want to use Scanner class to read // data from console on the system, So we are using // a constructor which is taking an System.in object Scanner scanner = new Scanner(System.in); // Prompt the user to enter temperature in Fahrenheit System.out.print("Enter temperature in Fahrenheit : "); double fahrenheit = scanner.nextDouble(); // Convert Fahrenheit temperature to Celsius temperature // Formula : Celsius = (5/9)*(Fahrenheit - 32) double celsius = (5.0 / 9.0) * (fahrenheit - 32); // Displaying conversion on the console. System.out.println(fahrenheit + " degrees Fahrenheit is equal to " + celsius + " degrees Celsius"); System.out.println(); // Prompt the user to enter temperature in Celsius System.out.print("Enter temperature in Celsius : "); celsius = scanner.nextDouble(); // Convert Celsius temperature to Fahrenheit temperature // Formula : Fahrenheit = (9/5)*(Celsius + 32) fahrenheit = (9.0 / 5.0) * celsius + 32; // Displaying conversion on the console. System.out.println(celsius + " degrees Celsius is equal to " + fahrenheit + " degrees Fahrenheit"); } } ``` Output of the program :
Program to demonstrate how to convert temperature degrees Fahrenheit to degrees Celsius and degrees Celsius to degrees Fahrenheit in Java.

```import java.util.Scanner;

public class TemperatureConversion {

public static void main(String[] args) {

// Creating a Scanner object using a constructor
// which takes the System.in object. There are various
// constructors for Scanner class for different
// purposes. We want to use Scanner class to read
// data from console on the system, So we are using
// a constructor which is taking an System.in object
Scanner scanner = new Scanner(System.in);

// Prompt the user to enter temperature in Fahrenheit
System.out.print("Enter temperature in Fahrenheit : ");

double fahrenheit = scanner.nextDouble();

// Convert Fahrenheit temperature to Celsius temperature
// Formula : Celsius = (5/9)*(Fahrenheit - 32)

double celsius = (5.0 / 9.0) * (fahrenheit - 32);

// Displaying conversion on the console.
System.out.println(fahrenheit + " degrees Fahrenheit is equal to "
+ celsius + " degrees Celsius");

System.out.println();

// Prompt the user to enter temperature in Celsius
System.out.print("Enter temperature in Celsius : ");

celsius = scanner.nextDouble();

// Convert Celsius temperature to Fahrenheit temperature
// Formula : Fahrenheit = (9/5)*(Celsius + 32)

fahrenheit = (9.0 / 5.0) * celsius + 32;

// Displaying conversion on the console.
System.out.println(celsius + " degrees Celsius is equal to "
+ fahrenheit + " degrees Fahrenheit");
}

}

```

Output of the program :