Super simply guarantees we call the correct next class''s method in the method resolution order, whereas the other way hard-codes the next method to be called, which
super() is a special use of the super keyword where you call a parameterless parent constructor. In general, the super keyword can be used to call overridden methods,
The first (<? super E>) says that it''s "some type which is an ancestor (superclass) of E"; the second (<? extends E>) says that it''s "some type which is a subclass of E". (In both
In fact, multiple inheritance is the only case where super() is of any use. I would not recommend using it with classes using linear inheritance, where it''s just useless overhead.
I''m currently learning about class inheritance in my Java course and I don''t understand when to use the super() call? Edit: I found this example of code where super.variable is used: class A {
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
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