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I have already read this link of C
In simple words, a constructor cannot be inherited, since in subclasses it has a different name (the name of the subclass).
class A {
A();
}
class B extends A{
B();
}
You can do only:
B b = new B(); // and not new A()
Methods, instead, are inherited with "the same name" and can be used.
As for the reason: It would not have much sense to inherit a constructor, since constructor of class A means creating an object of type A, and constructor of class B means creating an object of class B.
You can still use constructors from A inside B's implementation though:
class B extends A{
B() { super(); }
}