How to start C Programing with Dev C++

[Face]

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//My fourth programm in C++
#include<iostream>
using namespace std;
int main()
{
    int x,y;
    char name;
    cout<<"Please enter you name :- "<<endl;
    cin>>name;
    cout<<"hello "<<name;
    cout<<"we are going to test addition"<<endl;
    cout<<"Please enter a number 1 = "<<endl;
    cin>>x;
    cout<<"Please enter a number 2 = "<<endl;
    cin>>y;
    cout<<"number 1 + number 2 = "<<x+y<<endl;
    system("pause");
    
    
    }

Can you give me a help to make these errors.
1.I wanna get the user name.That's why I used variable as "name" & wanna get the print out as "hello ............."(ex-hello g-sparkz)
2.then I wanna run my adding system.

Errors-

1. I get user in put window,I can enter a name also.But Don't get any name out put in "hello .........."line.Just one letter disply.
2. code run with out errors when I compile.But not working properly after entering the name.it don't ask for any number input.

[Neo]

I changed the code a bit. Note the spaces I have added within lines to make the code clear. And the tab (indents) I put before every line. These are very important to maintain in programming.

Regarding the name input.... the problem you had was you were trying to get the input to a char. char can only holds a single character. But here you enter a set of characters. So you will have to use a char array here. I assumed you would not enter a name with more than 50 characters.

There is no requirement to use a int main since you do not output anything. So void main is enough.

Code: Select all

//My fourth programm in C++
#include<iostream>


using namespace std;



void main()
{

	int x,y;
	char name[50];


	cout << "Please enter you name :- ";

	cin >> name;

	cout << "hello " << name << endl << endl;


	cout << "we are going to test addition" << endl;
	cout << "Please enter a number 1 = ";
	cin >> x;

	cout << endl << "Please enter a number 2 = ";
	cin >> y;

	cout << endl << "number 1 + number 2 = " << x+y << endl;

	system("pause");

	return;
}

[Nipuna]

Neo Buddy I am Not Clear with this.

There is no requirement to use a int main since you do not output anything. So void main is enough.

Because we are out putting via

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cout <<

Thanks

[Neo]

Neo Buddy I am Not Clear with this.

There is no requirement to use a int main since you do not output anything. So void main is enough.

I mean outputting something (by return value) to the calling programme. As long as there is no special requirement for you to use something like return 5;, always use void in front of functions including main.

For example:

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int sum(int a, int b){
     return (a+b);
}

void main(){
      count << sum (21+ 34);
}

See we use int sum(), just because we return something to the calling function. But we use void main(), since there is no requirement to return anything from there.

Because we are out putting via
cout <<

From cout, printf, etc... we write to stdout (Standard output). This is the display.

[Nipuna]

Now I understand a Little. I think I have so much to learn to Understand these All

[Face]

Code: Select all

    //My fourth programm in C++

    #include<iostream>

    using namespace std;
    int main()
    {
        int x,y;
        char name[50];

        cout<<"Please enter you name :- "<<endl;

        cin>>name;
        cout<<"hello "<<name;

        cout<<"we are going to test addition"<<endl;

        cout<<"Please enter a number 1 = "<<endl;
        cin>>x;

        cout<<"Please enter a number 2 = "<<endl;
        cin>>y;

        cout<<"number 1 + number 2 = "<<x+y<<endl;
        system("pause");
       
       
        }

NEO thanks buddy.I love programming.thanks for your great help.I will try to make another today & will post it here.

[Face]

Neo Buddy,I wanna make some changes in my little program.Here it is,

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//G-sparkz little billing Pack

#include<iostream>

using namespace std;

int main()
{
    int Paper,Quantity,Total;
    char Name[50];
    
    cout<<"Welcome to G-sparkZ Billing Pack"<<endl<<endl;
    
    cout<<"Please enter your name"<<endl;
    cin>>Name;
    cout<<Name <<" entered the G-SparkZ Billing system "<<endl<<endl;
    
    cout<<"Enter your paper size ";
    cin>>Paper;
    
    cout<<"How many pages ";
    cin>>Quantity;
    
    cout<<"paper - "<<Paper<< " Pages - "<< Quantity<<endl;
    
    Total=Paper*Quantity;
    
    cout<<"Total price - "<<Total<<endl;
    
    system("pause");
    }

1.I wanna get some line after entering paper size & Pages.
2.I wanna define some paper sizes & give values for them.

Can you help me to make lines.I will ask my second question after thing what are the values I wanna assign.I have not designed it yet.

[Nipuna]

I think adding Like this would work

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paper = 4;

Like that. I don't know exactly

[Face]

Thanks for your attention NIPUNA.I wanna make some lines first.Then I will try to get user inputs.I started new topic for this.Because this is getting bigger & bigger.

[SemiconductorCat]

my WELL EXPERIENCED BIG BOSS told me that DEV C++ is too old and deprecated. So
use Code Blocks or Code Lite.(he told me not me).