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Topic: what is the use of super and this keyword in java

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User: manishav3388 Post Date: 26 Jan 2011 00:32

Introduction:
super and this keyword is used in java to refer to immediate parent class
and current class respectively.



Main Content:
Below is the description of this and super


This:This can be used inside a method and it returns a reference to
the current object on whih the method is being called.
also a property of the current object can be set by this key word

For example if there is a object called Person we can call
this.age = 30 to set the age of the person.


Super : A super keyword can be used to set the properties of the object
of a parent class or it can also be used to call the constructor of super class
from current class.


Conclusion:
Note that super() should be always be the first line of statement inside a
subclass constructor.



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