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Java Program to Convert Fahrenheit to Celsius
This post covers a program in Java that converts the temperature entered by the user in Fahrenheit to its equivalent Celsius value.
The formula to convert Fahrenheit to Celsius is:
C = (F-32)/1.8
where C is the Celsius value and F is the Fahrenheit value. Still, if you want to explore the formula, then refer to the Celsius to Fahrenheit Formula Explained.
Fahrenheit to Celsius Conversion in Java
The question is: write a Java program to convert the temperature from Fahrenheit to Celsius. The Fahrenheit value must be received by the user at runtime. The program given below is its answer:
import java.util.Scanner; public class CodesCracker { public static void main(String[] args) { float fahrenheit, celsius; Scanner scan = new Scanner(System.in); System.out.print("Enter the Temperatur (in Fahrenheit): "); fahrenheit = scan.nextFloat(); celsius = (float) ((fahrenheit-32)/1.8); System.out.println("\nEquivalent Temperature (in Celsius) = " +celsius); } }
The sample run of the above program, with user input of 98.6 as the temperature in Fahrenheit, is shown in the snapshot given below:
In the above example, the following line:
import java.util.Scanner;
imports the "Scanner" class from the "java.util" package. The Scanner class is used to read input from the user. Again, the following code:
public class CodesCracker { public static void main(String[] args) {
creates a public class called CodesCracker that contains a public static method called main. The method takes an array of strings as an argument.
Now the following statement:
float fahrenheit, celsius;
Two "float" variables, "fahrenheit" and "celsius," are declared. Now the following statement:
Scanner scan = new Scanner(System.in);
creates a new "Scanner" object called scan. The "Scanner" object reads input from the standard input stream, which is usually the keyboard. Again, the following
System.out.print("Enter the Temperatur (in Fahrenheit): ");
prints a message to the console asking the user to enter a temperature in Fahrenheit. The following statement:
fahrenheit = scan.nextFloat();
reads a float value from the user using the Scanner object and assigns it to the Fahrenheit variable. The following statement:
celsius = (float) ((fahrenheit-32)/1.8);
converts the temperature from Fahrenheit to Celsius using the formula (F-32)/1.8. The result is stored in the celsius variable. Finally, the following statement:
System.out.println("\nEquivalent Temperature (in Celsius) = " +celsius);
Same program in other languages
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