Java Program: Convert Celsius into Fahrenheit  using method

Java Program: Convert Celsius into Fahrenheit  using the method

In this tutorial, we will discuss the concept of the Java Program: Convert Celsius into Fahrenheit  using the method

In this post, we will learn how to write a program to convert Celsius into Fahrenheit using the scientific equations in Java programming language with an Example program.

Temperature and conversion

Generally, We have known three types of temperature units Fahrenheit, Celsius, and Kelvin. In this article, we are discussing how to convert temperature units Fahrenheit into Celsius. Fahrenheit and Celsius are the measuring units in degrees as ⁰F and ⁰C  respectively.

scientific equation Fahrenheit= Celsius*9/5+32

Code to Celsius into Fahrenheit

Convert Celsius into Fahrenheit

In this program, the user declares a double variable as a parameter for Celsius in the user-defined method. When the user calls the method, the celsius value passes to the method as an argument.
Finally, the Fahrenheit value displays on the screen using the scientific equations in Java programming language.

Program 1

class Cel_to_Fah_method{
    double con_fahrenheit(double celsius){
    
return ((9*celsius/5.0)+32);
}

public static void main(String args[]){
Cel_to_Fah_method res=new Cel_to_Fah_method();
double result=res.con_fahrenheit(100);
double result1=res.con_fahrenheit(50);
double result2=res.con_fahrenheit(0);
System.out.println( "Fahrenheit is =" +result);
System.out.println( "Fahrenheit is =" +result1);
System.out.println( "Fahrenheit is =" +result2);
}
}

When the above code is executed, it produces the following result

Fahrenheit is = 212.0
Fahrenheit is = 122.0
Fahrenheit is = 32.0

Convert Celsius into Fahrenheit –  Entered by user

Program 2

In this program, the user declares a double variable as a parameter for Celsius in the user-defined method. When the user runs the program (calling the method), the program is asked for the value for Celsius and stores the given value in the variable Celsius as an argument for the method.
Finally, the Fahrenheit value is calculated using scientific equations and displayed on the screen.

import java.util.Scanner;
class Cel_to_Fah_meth1{
    double con_fahrenheit(double c){
    
return ((9*c/5.0)+32);
}

public static void main(String args[]){
Scanner sc=new Scanner(System.in);
System.out.println("Enter a degree in celsius: ");
double celsius=sc.nextDouble();

Cel_to_Fah_meth1 res=new Cel_to_Fah_meth1();
double result=res.con_fahrenheit(celsius);
System.out.println( "Fahrenheit is =" +result);

}
}

When the above code is executed, it produces the following result

Enter a degree in celsius:
100
Fahrenheit is =212.0

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Code to convert Fahrenheit to celsius using the Java

Code to convert Celsius to Fahrenheit using the Java

Java program to convert Fahrenheit to celsius  using the method

Java program to convert Celsius to Fahrenheit using the method