keyword super in java

**shirin** · December 27th, 2013, 02:55 AM

Hello,

what is super as a keyword in java and how can I use in the program?

Thank you

**aprabhat** · December 27th, 2013, 05:23 AM

There are so many uses of super keyword.
Used to refer immediate parent class instance variable.
Used to invoke parent class constructor.

class Parent{  
Parent(){
System.out.println("In Parent class constructor");
}  
}
 
class Child extends Parent{  
Child (){  
super();//will invoke parent class constructor    
}  
public static void main(String args[]){  
Child child =new Child ();  
}  
}

and as it refer to immediate parent class instance variable so it also used to call a method of parent class.

super.ParentClassMethod();

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