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// This program demonstrates a destructor.

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

// Class specification
class Demo {
public:
   Demo();     // Constructor

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// This program demonstrates a destructor.

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

// Class specification
class Demo {
public:
   Demo();     // Constructor

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// Program to demo an array of class objects
// Adapted from http://codeprecisely.blogspot.com/2011/09/program-to-demonstrates-array-of.html

#include <iostream>
#include <string>

using namespace std;

class Book {
private:

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void MainWindow::foo() {
    qDebug() << "clicked the button";
}

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// This program demonstrates how to overload
// the post-increment operator
// https://gist.github.com/3399944

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


class Fraction {

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// Ejemplo cout usando conditional assignment 

#include <iostream>
using namespace std;


int main (void) {
  int a = 35;
  cout << "El numero es " << ((a % 2) ? "impar." : "par.") << endl; 
  

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// Command line argument example #01

#include <iostream>
using namespace std;

int main ( int argc, char *argv[] )
{
  if ( argc < 2 ) {
    cout<<"usage: "<< argv[0] <<" <your name>\n";
    exit(1);

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// Command line argument example #02

#include <iostream>
using namespace std;

bool isNum(char *st) {
  int i = 0;
  while (st[i] != '\0') {
    if (st[i] < '0' || st[i] > '9')   return false; 
    i++;

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// Command line argument example #03

#include <iostream>
#include <fstream>
#include <cassert>

using namespace std;


int main ( int argc, char *argv[] )

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// OJO: Este archivo contiene código que debe ser separado 
// en los archivos: Rectangle.cpp, Rectangle.h, RectangleClient.cpp,
// y Makefile


//------ Rectangle.h file begins ---------------------

#include <iostream>

using namespace std;