Using Bar Charts to Display Array Data Graphically - C++ Data Type

C++ examples for Data Type:Array

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Description

Using Bar Charts to Display Array Data Graphically

Demo Code

#include <iostream> 
#include <iomanip> 
using namespace std; 

int main() /*w w w. j a va2s.  co m*/
{ 
    const int arraySize = 11; 
    int n[ arraySize ] = { 0, 0, 0, 0, 0, 0, 1, 2, 4, 2, 1 }; 

    cout << "Grade distribution:" << endl; 

    // for each element of array n, output a bar of the chart 
    for ( int i = 0; i < arraySize; ++i ) 
    { 
       // output bar labels ("0-9:", ..., "90-99:", "100:" ) 
        if ( i == 0 ) 
           cout << "  0-9: "; 
        else if ( i == 10 ) 
           cout << "  100: "; 
        else 
           cout << i * 10 << "-" << ( i * 10 ) + 9 << ": "; 

       // print bar of asterisks 
        for ( int stars = 0; stars < n[ i ]; ++stars ) 
           cout << '*'; 

        cout << endl; // start a new line of output 
    }
}

Result


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