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MagicNumbers Code Correction

Need help in correcting actual code.  When I try to compile unix displays a consortium of errors.  Please advise.  Del

#include <iostream>

using namespace std;

class MagicNumbers {

public:

   MagicNumbers(int x, int y, int z) { // inline function
      a = x; b = y; z = b;

   }

   void show_numbers(void) {
      cout << a << ' ' << b << ' ' << c << '\n';

   }

private:

   int a, b, c;

};

int main()
{
   int one, two, happy;
   MagicNumbers one(1, 1, 1);
   MagicNumbers two(202, 202);
   MagicNumbers default;
   MagicNumbers happy(101, 101, 101);
   one.show_numbers();             // 1, 1, 1
   two.show_numbers();              // 202, 202, 3
   defaults.show_numbers();                      // 1, 2, 3
   happy show_numbers();             // 101, 101, 101

   return 0;

}


0
edelossantos
Asked:
edelossantos
1 Solution
 
jkrCommented:
This should be more like

#include <iostream>

using namespace std;

class MagicNumbers {

public:

  MagicNumbers(int x, int y, int z) { // inline function
    a = x; b = y; c = b;

  }
  MagicNumbers() { // inline function. default constructor
    a = 0; b = 0; c = 0;

  }

  void show_numbers(void) {
    cout << a << ' ' << b << ' ' << c << '\n';

  }

private:

  int a, b, c;

};

int main()
{
  int nOne, nTwo, nHappy;
  MagicNumbers one(1, 1, 1);
  MagicNumbers two(202, 202, 202);
  MagicNumbers defaults;
  MagicNumbers happy(101, 101, 101);
  one.show_numbers();           // 1, 1, 1
  two.show_numbers();            // 202, 202, 3
  defaults.show_numbers();                     // 1, 2, 3
  happy.show_numbers();           // 101, 101, 101

  return 0;

}
0
 
bkfirebirdCommented:
1. int one, two, happy;
   MagicNumbers one(1, 1, 1);
   MagicNumbers two(202, 202);

you are first declaring one, two as type int ..... later declaring them as type MagicNumbers

2. MagicNumbers two(202, 202);
you need three constructors for your class taking 0, 2, 3 parameters

#include <iostream>

using namespace std;

class MagicNumbers {

public:

   MagicNumbers(int x, int y, int z) { // inline function
     a = x; b = y; z = b;
   }

   MagicNumbers(int x, int y) { // inline function
     a = x; b = y; c=3;
   }

   MagicNumbers() { // inline function
     a = 1; b= 2; c = 3;
   }


   void show_numbers(void) {
     cout << a << ' ' << b << ' ' << c << '\n';

   }

private:

   int a, b, c;

};

int main()
{
      MagicNumbers one(1, 1, 1);
   MagicNumbers two(202, 202);
   MagicNumbers default;
   MagicNumbers happy(101, 101, 101);
   one.show_numbers();           // 1, 1, 1
   two.show_numbers();            // 202, 202, 3
   default.show_numbers();                     // 1, 2, 3
   happy.show_numbers();           // 101, 101, 101

   return 0;

}
0
 
hal3000Commented:
Hi edelossantos,

In addition, in the class you need the declarations of a, b, and c to precede the method declarations.

Good luck
0
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edelossantosAuthor Commented:
I wish I could have picked the two of you.  Both solutions were very helpful and insightfull.  Thank you.  Del
0
 
hal3000Commented:
You can using point split
0
 
edelossantosAuthor Commented:
I am still new at this, how do you point split?
0
 
hal3000Commented:
See the help section on closing questions.

But At this point you have to make a request to the moderator.
0
 
edelossantosAuthor Commented:
Thank you.  Del
0
 
edelossantosAuthor Commented:
jkr
    Your solution and resolution to the problem was excellent, and was exactly what I needed.  Thank you once again.  Del
0
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