You can write a unit test to verify that behavior or you can just run the program using the main method to see how it works and what output it generates while converting between these two units. Both methods accept temperature in respective scale as floating-point value and convert them into other by using the above formula and return it back to the caller. We have created two methods toFahrenheit(float C) and toCelsius(float F) to convert between Fahrenheit temperature to Celsius and vice-versa.īoth are static methods because they are utility methods and operate only on the data provided to the method and don't depend on any object state. This is our sample program to do this conversion.
How to convert Fahrenheit to Celsius in Java Btw, if you are an absolute Java beginner and learning Java, I suggest you take a look at a couple of introductory books about Java programming language like Java: A Beginner's Guide by Herbert Schildt, it's one of the up-to-date books in Java and covers even latest Java release, Java 8. This is what you will learn in this tutorial. What is more important is to learn how to convert such a formula into a computer program using Java programming language. To be frank, if you have been a Science student you already know about that formula, nothing new about it. By using these facts, you can easily deduce a formula to convert Fahrenheit temperature into Celsius. If you know, in the Celsius scale, the freezing point of water is at 0✬ and the boiling point of water is at 100✬.
Therefore, a degree on the Fahrenheit scale is 1/180 of the interval between the freezing point and the boiling point of water.
This puts the boiling and freezing points of water exactly 180 degrees apart. Fahrenheit is a thermodynamic temperature scale, where the freezing point of water is 32 degrees Fahrenheit (☏) and the boiling point of water is 212☏ (at standard atmospheric pressure). In this Java tutorial, you will learn how to write a program to convert Fahrenheit to Celsius in Java.
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