C++- Input Types and Header Files in --Eclipse IDE |
Objectives
- Reading user's input
- Create header file
- Explaining, the preprocessor directives like
#ifndef, #define and #endif are used in a header file
to prevent the header files being included
more than once
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Step: 1 Input Type and data type
A a default template was used to create the current project.
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Step: 2 Creating a header file
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Step: 3 Adding a source file
The above creates an empty source file
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Step: 4 Edit codes of the source file.
#include "input1.h"
int main() {
cout << "!!!Hello World!!!" << endl;
// prints !!!Hello World!!!
cout << "!!!Please enter a number!!!" ;
int n1 ; // declaring an integer
cin >> n1;//<<endl;
//cin >> n1;
printf("\n hello : ");
cout << n1 << endl;
return 0;
}
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Step: 5 Build the project and run
The "cin >> n1" awaits for the users input.
Enter an integer
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Step: 6 Final Vision ( Input type and header files)
FYI: this is not an ideal presentation of coding senses, but would be
enough to put the concept across the table.
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