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Super() is a special use of the super keyword where you call a parameterless parent constructor Within each class there is a print In general, the super keyword can be used to call overridden methods, access hidden fields or invoke a superclass's constructor.

In fact, multiple inheritance is the only case where super() is of any use For example, i have a class called parent, and a class called child which is derived from parent I would not recommend using it with classes using linear inheritance, where it's just useless overhead.

As for chaining super::super, as i mentionned in the question, i have still to find an interesting use to that

For now, i only see it as a hack, but it was worth mentioning, if only for the differences with java (where you can't chain super). Super e>) says that it's some type which is an ancestor (superclass) of e Extends e>) says that it's some type which is a subclass of e (in both cases e itself is okay.) so the constructor uses the

Extends e form so it guarantees that when it fetches values from the collection, they will all be e or some subclass (i.e I'm currently learning about class inheritance in my java course and i don't understand when to use the super() call I found this example of code where super.variable is used If you add any other column/attribute to a primary key then it become a super key, like employeeid + fullname is a super key

If a table don't have any individual columns that qualifies for a candidate key, then you have to select 2 or more columns to make a row unique.

I am working with some code that has 3 levels of class inheritance From the lowest level derived class, what is the syntax for calling a method 2 levels up the hierarchy, e.g The automatic insertion of super () by the compiler allows this Enforcing super to appear first, enforces that constructor bodies are executed in the correct order which would be

How do i call the parent function from a derived class using c++

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