Structure vs Class in C++

#include 
using namespace std;
class my_class {
  public:
 int x = 10;
};
int main() {
 my_class my_ob;
 cout 

Output
10
Example Code for Structure
Here is the following code for a structure.
#include 
using namespace std;
struct my_struct{
 int x = 10;
};
int main() {
 my_struct my_ob;
 cout 
Output
10
When we derive a structure from a class or structure, the default access specifier of that base class is public, but when we derive a class the default access specifier is private.
Example Code 1
#include 
using namespace std;
class my_base_class {
 public:
 int x = 10;
};
class my_derived_class : my_base_class{
};
int main() {
 my_derived_class d;
 cout 
Output
This program will not be compiled. It will generate a compile time error that the variable x of the base class is inaccessible
Example Code 2
#include 
using namespace std;
class my_base_class {
 public:
int x = 10;
};
struct my_derived_struct : my_base_class{
};
int main() {
 my_derived_struct d;
 cout 
Output
10