Declaring Variables for the whole program...

Hello,

First of all, why is the code of C++ so "messy"
Is it like "normal" for you guys now I mean
there's all the
#programmas and the control "definitions all in one file...
in VB, it used to be simple clean... Afterall, C++ is more complex, so
I'll quite down for now...

Well my real question in how do I declare a "Public" variable
In VB, you do it like:

Public x As Integer
or
Public x As Double
or
Public x As String

well, there are more "types"...
but in C++, even if it IS Public x As Double,
where do I declare the variable

Orange = the part that I said is "messy"
Red = my "own code" or button/label actions...

My whole code is:

#pragma once

namespace simple {

using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;

/// <summary>
/// Summary for Form1
///
/// WARNING: If you change the name of this class, you will need to change the
/// 'Resource File Name' property for the managed resource compiler tool
/// associated with all .resx files this class depends on. Otherwise,
/// the designers will not be able to interact properly with localized
/// resources associated with this form.
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
//
//TODO: Add the constructor code here
//
}

protected:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
private: System::Windows::Forms::Label^ label1;
private: System::Windows::Forms::TextBox^ textBox1;
private: System::Windows::Forms::TextBox^ textBox2;
private: System::Windows::Forms::Button^ button1;
private: System::Windows::Forms::Button^ button2;
private: System::Windows::Forms::Button^ button3;
private: System::Windows::Forms::Button^ button4;
private: System::Windows::Forms::Label^ label2;
protected:

private:
/// <summary>
/// Required designer variable.
/// </summary>
System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
void InitializeComponent(void)
{
this->label1 = (gcnew System::Windows::Forms::Label());
this->textBox1 = (gcnew System::Windows::Forms::TextBox());
this->textBox2 = (gcnew System::Windows::Forms::TextBox());
this->button1 = (gcnew System::Windows::Forms::Button());
this->button2 = (gcnew System::Windows::Forms::Button());
this->button3 = (gcnew System::Windows::Forms::Button());
this->button4 = (gcnew System::Windows::Forms::Button());
this->label2 = (gcnew System::Windows::Forms::Label());
this->SuspendLayout();
//
// label1
//
this->label1->AutoSize = true;
this->label1->Location = System::Drawing::Point(12, 52);
this->label1->Name = L"label1";
this->label1->Size = System::Drawing::Size(45, 13);
this->label1->TabIndex = 0;
this->label1->Text = L"Answer:";
this->label1->Click += gcnew System::EventHandler(this, &Form1::label1_Click);
//
// textBox1
//
this->textBox1->Location = System::Drawing::Point(15, 10);
this->textBox1->Name = L"textBox1";
this->textBox1->Size = System::Drawing::Size(100, 20);
this->textBox1->TabIndex = 2;
//
// textBox2
//
this->textBox2->Location = System::Drawing::Point(141, 9);
this->textBox2->Name = L"textBox2";
this->textBox2->Size = System::Drawing::Size(100, 20);
this->textBox2->TabIndex = 3;
//
// button1
//
this->button1->Location = System::Drawing::Point(261, 7);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(23, 23);
this->button1->TabIndex = 4;
this->button1->Text = L"+";
this->button1->UseVisualStyleBackColor = true;
this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click_1);
//
// button2
//
this->button2->Location = System::Drawing::Point(319, 8);
this->button2->Name = L"button2";
this->button2->Size = System::Drawing::Size(23, 23);
this->button2->TabIndex = 5;
this->button2->Text = L"-";
this->button2->UseVisualStyleBackColor = true;
//
// button3
//
this->button3->Location = System::Drawing::Point(290, 7);
this->button3->Name = L"button3";
this->button3->Size = System::Drawing::Size(23, 23);
this->button3->TabIndex = 6;
this->button3->Text = L"X";
this->button3->UseVisualStyleBackColor = true;
//
// button4
//
this->button4->Location = System::Drawing::Point(348, 7);
this->button4->Name = L"button4";
this->button4->Size = System::Drawing::Size(23, 23);
this->button4->TabIndex = 7;
this->button4->Text = L"/";
this->button4->UseVisualStyleBackColor = true;
//
// label2
//
this->label2->AutoSize = true;
this->label2->Location = System::Drawing::Point(64, 52);
this->label2->Name = L"label2";
this->label2->Size = System::Drawing::Size(16, 13);
this->label2->TabIndex = 8;
this->label2->Text = L"---";
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(384, 81);
this->Controls->Add(this->label2);
this->Controls->Add(this->button4);
this->Controls->Add(this->button3);
this->Controls->Add(this->button2);
this->Controls->Add(this->button1);
this->Controls->Add(this->textBox2);
this->Controls->Add(this->textBox1);
this->Controls->Add(this->label1);
this->Name = L"Form1";
this->Text = L"Simple Calculator";
this->ResumeLayout(false);
this->PerformLayout();

}
#pragma endregion
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
this->label1->Text = "yes!";
}
private: System::Void label1_Click(System::Object^ sender, System::EventArgs^ e) {
}
private: System::Void button1_Click_1(System::Object^ sender, System::EventArgs^ e) {

}
};
}

-----end of code-----

well, do I put the declaration BETWEEN the blue lines
and if I DO put it there, what is the C++ Public Declaration

Thank You
Keehun Nam

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Declaring Variables for the whole program...

HermannS
Well, then are there ways to call variables from other subs
or then how can I safely use a "universal" variable for my program (so that its not a "red flag" )

and also, I am a newbie, are there "cleaner" code styles that I can learn
if so, how and where

Thank you for your response!
Keehun Nam
drinkwater
C++ is no more messy than is VB (in fact I'd say it's potentially far cleaner).

But your coding style isn't the best as it's stuck in using C++ as if it were VB with a different syntax, and that's why it looks messy.

Wanting to use global variables is a major red flag in realworld programming.

Here in the office we have a statement printed in large bold letters on the wall that reads "the only good global is a global that's been removed" and that's the way you should approach your coding.
Declaring Variables for the whole program...

Answer this question