--------ㅡ---------main.cpp------------------------
#include <cstdlib>
#include <iostream>
#include \"x.h\"

using namespace std;

int main(int argc, char *argv[])
{
    X x1(10);
    X1.b=100;
    X x2;
   
    int i = x1.read_a();
    i = x2.read_a();
    system(\"PAUSE\");
    return EXIT_SUCCESS;
}

--------ㅡ---------x.h------------------------

// Class automatically generated by Dev-C++ New Class wizard

#ifndef X_H
#define X_H

/*
 * No deion
 */
class X
{
      int a;
 public:
  // class constructor
  X(int init = 0){a = init;}
  float b;
  // class destructor
  ~X();
};
#endif // X_H

-----------------------------x.cpp---------------------------
// Class automatically generated by Dev-C++ New Class wizard

#include \"x.h\" // class\'s header file

// class constructor
X::X()
{
      int read_a(){reaturn a;}
 // insert your code here
}

// class destructor
X::~X()
{
 // insert your code here
}
---------------------------------------------------