convertFahrenheitToCelsius()

Step 1: Declare a Method

In the first step, we will start by declaring a method that will convert Fahrenheit to Celsius. This method will take one parameter as an input - a temperature in Fahrenheit. It will return a float that represents the temperature in Celsius. The method should be public so it can be accessed from anywhere in the program.

public class Main { 

public float convertFahrenheitToCelsius(float fahrenheit){ 

} 
} 

Step 2: Temperature Conversion Formula

Now that we have declared our method, the next step is to apply the temperature conversion formula. The formula to convert Fahrenheit to Celsius is (Fahrenheit - 32) * 5/9. Implement this formula inside the method.

public class Main { 

public float convertFahrenheitToCelsius(float fahrenheit){ 
    float celsius = (fahrenheit - 32) * 5/9; 
} 
} 

Step 3: Return the Result

Now that we have converted the temperature to Celsius, we need to return it from the method. We achieve this by using the return keyword in Java.

public class Main { 

public float convertFahrenheitToCelsius(float fahrenheit){ 
    float celsius = (fahrenheit - 32) * 5/9; 
    return celsius; 
} 
} 

Step 4: Invoke the Method

Finally, we need to invoke our method to use it. Let's create a main method in our Main class. In the main method, create an object of the Main class, and call the convertFahrenheitToCelsius method on the object.

public class Main { 

public float convertFahrenheitToCelsius(float fahrenheit){ 
    float celsius = (fahrenheit - 32) * 5/9; 
    return celsius; 
} 

public static void main(String[] args){ 
    Main myObj = new Main(); 
    System.out.println(myObj.convertFahrenheitToCelsius(100)); 
} 
} 

Conclusion

As a result, we've created a method that can convert Fahrenheit to Celsius. When the convertFahrenheitToCelsius method is invoked with a Fahrenheit value, it will return the equivalent temperature in Celsius.

public class Main { 

public float convertFahrenheitToCelsius(float fahrenheit){ 
    float celsius = (fahrenheit - 32) * 5/9; 
    return celsius; 
} 

public static void main(String[] args){ 
    Main myObj = new Main(); 
    System.out.println(myObj.convertFahrenheitToCelsius(100)); 
} 
}