I have such a design in my mind.... My aim is to reuse the program with some features included and without some features. What is it called in the literature?

class feature1
{
void feature1function1();
void feature1function2();
}

class feature2
{
void feature2function1();
void feature2function2();

}

class program: feature1, feature2
{
void function1()
{
 feature2function1();
}
void function2()
{
 feature1function1();
 feature2function1();
}
void execute()
{
  function1();
  function2();
}

}