In this tutorial, we will discuss the concept of How to write a function or method to convert Celsius into Fahrenheit
In this post, we will learn how to write a program to convert Celsius into Fahrenheit using the function of different programming languages with an Example program.
Temperature and conversion
Generally, We have known three types of temperature units, Fahrenheit, Celsius, and Kelvin. In this article, we learn How to use different programming languages to convert temperature units Celsius into Fahrenheit. Fahrenheit and Celsius are the measuring units in degrees as 0F and 0C, respectively.
scientific equation Fahrenheit= Celsius*9/5+32
In this program, the user declares a double variable as a parameter for Celsius in the user-defined function. When the user calls the function, the Celsius value passes to the function as an argument through the variable.
Finally, the Fahrenheit value is calculated and displayed using different programming languages’ functions on the screen.
Program 1
//Java program to Convert Celsius into Fahrenheit
//using method
public class Celsius_To_Fahrenheit
{//function definition
double cels_tO_fahre(double celsius){
return (celsius*9/5)+32;
//Calculate Fahrenheit using Celsius value
//and return the result to main method
}
public static void main (String args[]){
double cels=50,fahre;
// variable declaration and initialize Celsius as 40
Celsius_To_Fahrenheit res = new Celsius_To_Fahrenheit();
//Create object
double result=res.cels_tO_fahre(cels);
System.out.println("Temperature in Farhenheit:"+result);
}
} When the above code is executed, it produces the following result
Temperature in Farhenheit:122.0
Program 2
//Java program to Convert Celsius into Fahrenheit
//using method
public class Celsius_To_Fahrenheit
{
static double cels_tO_fahre(double celsius){
return (celsius*9/5)+32;
//Calculate Fahrenheit value
//and return the result to main method
}
public static void main (String args[]){
Celsius_To_Fahrenheit res=new Celsius_To_Fahrenheit();
//Create object
System.out.println("Temperature in Celsius:"+cels_tO_fahre(100.0));
System.out.println("Temperature in Celsius:"+cels_tO_fahre(0.0));
System.out.println("Temperature in Celsius:"+cels_tO_fahre(40.0));
System.out.println("Temperature in Celsius:"+cels_tO_fahre(98.6));
//Dispay result
}
}
When the above code is executed, it produces the following result
Temperature in Celsius:212.0 Temperature in Celsius:32.0 Temperature in Celsius:104.0 Temperature in Celsius:209.48
Program 3
// function to convert celsius into fahrenheit using C program
//Entered by user
#include <stdio.h>
float convert_CelsToFahr(float c)
{//user defined function
//Function definition to calculate fahrenheit
return ((c*9.0/5.0)+32.0);
}
int main() {
float fahrenheit=convert_CelsToFahr(0.00);
float fahrenheit1=convert_CelsToFahr(100.00);
float fahrenheit2=convert_CelsToFahr(90.00);
float fahrenheit3=convert_CelsToFahr(75.00);
float fahrenheit4=convert_CelsToFahr(50.00);
//Call the function with argument
printf("Tempareture in fahrenheit:\n");
printf("%.2f\n",fahrenheit);
printf("%.2f\n",fahrenheit1);
printf("%.2f\n",fahrenheit2);
printf("%.2f\n",fahrenheit3);
printf("%.2f",fahrenheit4);
//Dispay result on the screen
return 0;
} When the above code is executed, it produces the following result
Tempareture in fahrenheit: 32.00 212.00 194.00 167.00 122.00
Program 4
// C program to convert celsius into fahrenheit
//using user defined function
#include <stdio.h>
//user deined function
float convertCelsToFah(float celsius){
// function definition
return (celsius*9/5)+32;
//Calcuate temparature in fahrenheit
}
int main() {
// declaring variables
float celsius=100,fahrenheit;
//Convert celsius into fahrenheit
fahrenheit=convertCelsToFah(celsius);
printf("The temperature in Fahrenheit is=%.2f ",fahrenheit);
return 0;
} When the above code is executed, it produces the following result
The temperature in Fahrenheit is=212.00
Program 5
//C++ code to convert Celsius into Fahrenheit using function
#include <iostream>
using namespace std;
float CelsiusToFahrenheit(float);
//function prototype
int main() {
float celsius;
//declare float type variables
float fahrenheit=CelsiusToFahrenheit(100.00);
float fahrenheit1=CelsiusToFahrenheit(50.00);
float fahrenheit2=CelsiusToFahrenheit(37.6);
float fahrenheit3=CelsiusToFahrenheit(00.00);
//Calling the function with argument
//display result on the screen
cout<<fahrenheit <<" Fahrenheit"<<endl;
cout<<fahrenheit1 <<" Fahrenheit"<<endl;
cout<<fahrenheit2 <<" Fahrenheit"<<endl;
cout<<fahrenheit3 <<" Fahrenheit"<<endl;
return 0;
}
//function definition with parameter
float CelsiusToFahrenheit(float celsius){
return (celsius * 9/5)+32;
}//Calculate fahrenheit When the above code is executed, it produces the following result
212 Fahrenheit 122 Fahrenheit 99.68 Fahrenheit 32 Fahrenheit
Program 6
//C++ program to convert Celsius into Fahrenheit using function
//using initiaized variable
#include <iostream>
using namespace std;
float CelsiusToFahrenheit(float);
//function prototype
int main() {
float celsius=90.0;
//declare float type variables
float fahrenheit=CelsiusToFahrenheit(celsius);
//Calling the function with argument
//and Assign the resut to fahrenheit
//display result on the screen
cout<<celsius<<" Celsius"<<" equal to "<<fahrenheit <<" Fahrenheit"<<endl;
return 0;
}
//function definition
float CelsiusToFahrenheit(float celsius){
return (celsius * 9/5)+32;
//Calculate fahrenheit
} When the above code is executed, it produces the following result
90 Celsius equal to 194 Fahrenheit
Program 7
// C# program to convert Celsius to Fahrenheit
//using function
using System;
namespace Temperature
{
public class TempCelsToFahre1
{
public static void Main(string[] args)
{
//Calling the function with argument
double fahrenheit=celsiusToFahrenheit(36.9);
double fahrenheit1=celsiusToFahrenheit(00.00);
double fahrenheit2=celsiusToFahrenheit(100.00);
//Dispay temperature in Fahrenheit on the screen
Console.WriteLine ("The temperature in Fahrenheit: "+fahrenheit+" Fahrenheit");
Console.WriteLine ("The temperature in Fahrenheit: "+fahrenheit1+" Fahrenheit");
Console.WriteLine ("The temperature in Fahrenheit: "+fahrenheit2+" Fahrenheit");
Console.ReadLine();
}
//function definition
private static double celsiusToFahrenheit(double celsius)
{
return ((celsius*9/5)+32);
}
}
} When the above code is executed, it produces the following result
The temperature in Fahrenheit: 98.42 Fahrenheit The temperature in Fahrenheit: 32 Fahrenheit The temperature in Fahrenheit: 212 Fahrenheit
Program 8
// C# program to convert Celsius to Fahrenheit
//using function Entered by user
using System;
namespace Temperature
{
public class TempCelsToFahre
{
public static void Main(string[] args)
{
double celsius=80.0;
double fahrenheit=celsiusToFahrenheit(celsius);
//Calling the function with argument
//and assign the resut to variable fahrenheit
Console.WriteLine ("The temperature in Fahrenheit ix "+fahrenheit+" degrees");
//Dispay result on the screen
Console.ReadLine();
}
//function definition
private static double celsiusToFahrenheit(double celsius)
{
return ((celsius*9/5)+32);
}
}
} When the above code is executed, it produces the following result
The temperature in Fahrenheit is 176 degrees
Program 9
# Python code to convert temperature in Celsius to Fahrenheit
#uaing user defined function
#Entered by user
def convertCelsToFahre(c):#function definition
#Calculate temperature Fahrenheit
f=(c*1.8)+32
return f
celsius=50.0
#Calling the function
fahrenheit=convertCelsToFahre(celsius)
print('%0.1f degree Celsius is equal to %0.1f degrees Fahrenheit ' %(celsius,fahrenheit))
#Dispay result on the screen When the above code is executed, it produces the following result
50.0 degree Celsius is equal to 122.0 degrees Fahrenheit
Program 10
<?php
//Convert Celsius degrees to Fahrenheit using function
function calc_Fahrenheit(int $celsius){
return ($celsius *9/5)+32;
}
//user define function to calculate fahrenheit
echo("The temperature in Fahrenheit is: ");
//$celsius=round($celsius,3);
echo(calc_Fahrenheit(50));
echo "\n";
echo(calc_Fahrenheit(10));
echo "\n";
echo(calc_Fahrenheit(100));
echo "\n";
echo(calc_Fahrenheit(0));
//Calling the function to print result
?> When the above code is executed, it produces the following result
The temperature in Fahrenheit is: 122 50 212 32
Program 11
//Program to Convert Celsius to Fahrenheit
//Using a user-defined function
function CelsTofahre(c){
//function definition
return (celsius*1.8)+32
}
//Declare and initialize variable
const celsius=60;
//Calling the function to output
var result=CelsTofahre(celsius)
//Display the result
console.log(`${celsius} degrees Celsius is equal to ${result} degrees Fahrenheit.` ); When the above code is executed, it produces the following result
60 degrees Celsius is equal to 140 degrees Fahrenheit.
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