Java base class

super() will be automatically inserted of this(…) or super(…) is not specified. If the super class does not include a no-arg constructor or it is not accessible, then it won’t compile. In that case it is necessary to put super(…) and specify the constructor .

To explicitly call the superclass constructor from the subclass constructor, we use super() . It’s a special form of the super keyword. super() can be used only inside the subclass constructor and must be the first statement.

The super keyword refers to superclass (parent) objects . It is used to call superclass methods, and to access the superclass constructor. The most common use of the super keyword is to eliminate the confusion between superclasses and subclasses that have methods with the same name.