Method issue and invoking

harish reddy

Sir, i am struck here. Using methods,I wnated to input temperature in farenheit and wanted to get output in celsisu. this is my requirement .

1. also i get confused what should go in to brackets of method . For example in this case of method name converted, in the brackets should "temperaturef" be there or "temperaturec" be there?

class FahrenheittoCelsiusConversion

{

static float Main()

{

float temparaturef = float.Parse(Console.ReadLine());

converted();

}

static float converted(float temperaturef)

{

float temperaturec=(temperaturef-32)*5/9;

}

5 Replies

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harish reddy8y ago
Thanks Rahul,

Pls explain "args" is an array which is used to get inputs from console in one way. I can make an example of it and explain it more if you want"
+1
Rahul8y ago
Here is my response to your questions -

1. In the converted method i am returning "temperaturec" . i am assuming we should write asConsole.WriteLine(converted(temparaturec)); but you wrote as Console.WriteLine(converted(temparaturef)); Pls correct me why?

There are two ways to print your output using console.writeline method.

First, as i have mentioned in my previous response. Since you make your converted method returnable, so i used the same method and return your calculated output to main function and print the output. I wrote this logic in a single line. For your more understanding, I am breaking my logic in 2-3 lines.

Second, Do not make your converted method returnable, make it void and print your output in same method. Like i created a new method here "convertedNew" and used it -

Example rewritten -

class FahrenheittoCelsiusConversion

{

static void Main(string[] args)

{

//Get input from console

float temparaturef = float.Parse(Console.ReadLine());

//Holding output value in a new variable which is returning from converted method

float calculatedValue=converted(temparaturef);

//printing the output value

Console.WriteLine("converted method output=>" + calculatedValue);

//if you want, you could use the same variable you introduced earlier and print the output here like just below line -

//temparaturef = converted(temparaturef);

//calling new method which is non-returnable and prining the output inline.

convertedNew(temparaturef);

Console.ReadLine();

}

static float converted(float temperaturef)

{

float temperaturec = (temperaturef - 32) * 5 / 9;

return temperaturec;

}

static void convertedNew(float temperaturef)

{

float temperaturec = (temperaturef - 32) * 5 / 9;

Console.WriteLine("convertedNew method output=>" + temperaturec);

}

}

2. Also in somecases, i see first the method and the body code is written & then the main entry point is written? Is this right?

you can write in any order.

3. You wrote as static void Main(string[] args) . But i have seen cases where it is static void Main(). So pls explain.

"args" is an array which is used to get inputs from console in one way. I can make an example of it and explain it more if you want.

Thanks
0
Dharmraj Thakur8y ago
You can do simply like below code...
class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine(converted(float.Parse(Console.ReadLine())));
        Console.ReadKey();
    }
    static float converted(float temperaturef)
    {
        return (temperaturef - 32) * 5 / 9;
    }
}
0
harish reddy8y ago
Thanks and few questions:

1. In the converted method i am returning "temperaturec" . i am assuming we should write asConsole.WriteLine(converted(temparaturec)); but you wrote as
Console.WriteLine(converted(temparaturef)); Pls correct me why?

2. Also in somecases, i see first the method and the body code is written & then the main entry point is written? Is this right?

3. You wrote as static void Main(string[] args) . But i have seen cases where it is static void Main(). So pls explain.
+1
Rahul8y ago
Your code almost correct. Little corrections, first you need to pass input value to your converted method to get the output and second, you need to return output value from your converted method as it is returnable method. Below code has been corrected -

class FahrenheittoCelsiusConversion
{
static void Main(string[] args)
{
float temparaturef = float.Parse(Console.ReadLine());
Console.WriteLine(converted(temparaturef));
Console.ReadLine();
}
static float converted(float temperaturef)
{
float temperaturec = (temperaturef - 32) * 5 / 9;
return temperaturec;
}
}

Hope it helps.
+1