this or super needs to be first statement in constructor so that child class constructor invokes parent class constructor first . This is required to initialize any variable in parent class before doing any thing in child constructor.
Read moreWhat is the first statement in constructor?
The reason is that “Constructor call must be the first statement in a constructor”.
Read moreShould be the first statement in the constructor?
The Eclipse compiler says “Constructor call must be the first statement in a constructor”. So, it is not stopping you from executing logic before the call to super . It is just stopping you from executing logic that you can’t fit into a single expression. There are similar rules for calling this().11 Tem 2019
Read moreDoes Super have to be the first line in a constructor?
Historically, this() or super() must be first in a constructor . This restriction was never popular, and perceived as arbitrary. There were a number of subtle reasons, including the verification of invokespecial, that contributed to this restriction.12 Mar 2017
Read moreWhy do we use super function?
The super() function is used to give access to methods and properties of a parent or sibling class . The super() function returns an object that represents the parent class.
Read moreWhat is the use of super constructor in Java?
The super() in Java is a reference variable that is used to refer parent class constructors. super can be used to call parent class’ variables and methods . super() can be used to call parent class’ constructors only.
Read moreWhat does super () do in Java?
The super() in Java is a reference variable that is used to refer parent class constructors . super can be used to call parent class’ variables and methods. super() can be used to call parent class’ constructors only.
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