Syntax to inherit in Java
-To inherit a class in Java " extends " keyword is used.-Syntax :
class <Derive> extends <Base>
-From the view of derive class there are three categories of methods in base class :
1. Constructors :
~ To call constructor of base class " super " keyword is used.
~Syntax :
super(< argument >);
~Only derive class constructor can call the constructor of base class that too in first line of derive class.
2. Overridden Functions :
~To call the overridden function of base class syntax used is :
super.functionName(< argument >);
3. Normal Functions :
~To call other function syntax used is :
functionName(< argument >);
~Classes should highly cohesive.
