Basic OOP console calculator, result Error

Basic OOP console calculator, result Error

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Basic OOP console calculator, result Error
Tag : chash , By : Hugo
Date : January 12 2021, 09:11 PM

it should still fix some issue I am new to programming and I am trying to code my very first OOP program in C# but it does not give the right results. , Three problems with your code:
static void Main(string[] args)
    CalcOperations calcOperations = new CalcOperations();
    Console.WriteLine("Welcome to basic OOP calculator! Enter a number. {0}1 - Addition{0}2 - Substraction{0}3 - Multiplication{0}4 - Division", Environment.NewLine);

    var userInput = int.Parse(Console.ReadKey().KeyChar.ToString());


var getOperation = new double[]{

static void GetUserInput(CalcOperations calcOperations)
    Console.WriteLine("Enter the 1. number: ");
    calcOperations.firstNum = double.Parse(Console.ReadLine());
    Console.WriteLine("Enter the 2. number: ");
    calcOperations.secondNum = double.Parse(Console.ReadLine());

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php basic calculator with function and switch but result is

Tag : php , By : AdrianB
Date : March 29 2020, 07:55 AM
With these it helps i am currently doing some simple calculator for a practice but it the output or result is not showing here is my code guys hope you can help me :/ , Here is complete code:
$num1 = $_POST['num1'];
$num2 = $_POST['num2'];
$calcu = $_POST['calcu'];

    function calculate($n1,$n2, $calcu) // set $calcu as parameter
        case "Addition": // here you have to use colons not semi-colons
            $compute = $n1 + $n2; 
        case "Subtraction":
            $compute = $n1 - $n2; 
        case "Multiplication":
            $compute = $n1 * $n2; 
        case "Division":
            $compute = $n1 / $n2; 
        return $compute; // returning variable
echo "$calcu <br /> <br /> 1st Number: $num1 <br /> 2nd Number: $num2 <br /><br />";
echo "Answer is:" .calculate($num1,$num2, $calcu); // you need to pass $calcu as argument of that function

Trying to develop a basic calculator in android studio. Error: "Unfortunately, Calculator has stopped"

Tag : development , By : antonio
Date : March 29 2020, 07:55 AM
I wish did fix the issue. java Code: , This is wrong:
 number1 = (EditText)findViewById(R.id.number1);

 number2 = (EditText)findViewById(R.id.number2);

How can I store the result of a calculator and return with alert or console.log?

Tag : javascript , By : Doc Immortal
Date : March 29 2020, 07:55 AM
hope this fix your issue You don't need the global answer variable there.
Change your return statements to simply return the result instead of trying to assign it to "answer". ie
case '+' : 
  return a+b 
case '-' : 
  return a-b 
case '*' : 
  return a*b 
case '/' : 
  return a/b 
var answer = mycal(a,b,op)    

Basic calculator error in C++

Tag : cpp , By : kuba53280
Date : March 29 2020, 07:55 AM

Visual Basic BMI Calculator gives NaN result

Tag : vb.net , By : usingtechnology
Date : March 29 2020, 07:55 AM
I wish this helpful for you There are a few problems with your (meaning kushlord420) solution.
Visual Basic code in case insensitive so bmi is the same as BMI You never use the Form level variable bmi so delete. You tried to write a custom constructor but in vb.net it is Sub New You are converting the values in the weight and height text boxes to Double but your properties are type Single. Actually this should be Single.TryParse but that is for another day. Functions in vb.net must have a data type for the return value. This is provided in the first line of the function. Since you are using Format on the return value I made the value a String and converted the return value. Fixed the constructor parameters to avoid ambiguity.
    Sub Button_Calculate_Click(sender As Object, e As EventArgs) Handles Button_Calculate.Click
        Dim bmi As New BMI(CSng(TextBox_Weight.Text), CSng(TextBox_Height.Text))
        TextBox_BMI.Text = Format(bmi.GetBMI(), "0.00")
    End Sub

    Public Class BMI
        Public Function GetBMI() As String
            Return (Weight / (Height ^ 2)).ToString
        End Function

        Public Property Weight As Single
        Public Property Height As Single

        Public Sub New(wght As Single, hght As Single)
            Weight = wght
            Height = hght
        End Sub
    End Class
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