error: 'int A::mas100 [100]' is private

[Dmy]

Good day to all the good!

Here's a seemingly error in this code, all right. I don't understand why there is an error. Tell me, please!

class A
{
    private:
    int mas100[100]; //error: 'int A::mas100 [100]' is private
    public:
    int& operator[](int n)
    {
        //if(n < 0 || n >= 100) exit(-1);
        try
              {
                  if(n < 0 || n >= 100)
                  {
                      throw "Error!!!!"; //створити символьний рядок
                  }

              }
              catch(char *str)//сюди передасться рядок
              {
                  printf(str);

              }

        return mas100[n];
    }
};

A a1;
    for(int i=0; i<100; i++)
    {
        a1.mas100[i]=i;  //error: within this context
    }
    for(int j = 0; j < 100; j++)
    {
        int temp = a1[j]; // використовуємо функцію праворуч від знака =
    }

||=== Build: Debug in Mistructur1 (compiler: GNU GCC Compiler) ===|
D:\Classes\Mistructur1\Mistructur1.cpp||In function 'int main()':|
D:\Classes\Mistructur1\Mistructur1.cpp|81|error: 'int A::mas100 [100]' is private|
D:\Classes\Mistructur1\Mistructur1.cpp|122|error: within this context|
D:\Classes\Mistructur1\Mistructur1.cpp|126|warning : unused variable 'temp' [-Wunused-variable]|
||=== Build failed: 2 error(s), 1 warning(s) (0 minute(s), 0 second(s)) ===|

[Elkvis]

Do you know what "private" means?

[GReaper]

"private", as Elkvis hinted, is important here. You can't use a private member of an object directly, that is its purpose in programming, to hide the underlying structure. If you want to get or set its value, you need appropriate public methods to go with it.

[Dmy]

Thank you very much! I appreciate your answers.