use of super() in non inherited class

[Rajesh Veluchamy]

In the below code there is a super() in class which is not a child class(there is no extends)

Then what is the use of that "super();"

   class EmailCreate{
public void Emailnew(String s){
    EmailAcc emailacc = new EmailAcc();
    emailacc.custAccNumber = Integer.parseInt(s);
    }
}
 
public final class EmailAcc{
public int custAccNumber;
public EmailAcc(){
super();
}
public EmailAcc(int custAccNumber){
this.custAccNumber = custAccNumber;
}
}

[Christophe Verré]

Then what is the use of that "super();"

Think twice Don't Java classes all extend the same class ?
I don't find the super() particularly useful here though. If you don't write it, the compiler will implicitly put it for you anyway.

The Java Language Specification
8.8.7 Constructor Body
The first statement of a constructor body may be an explicit invocation of another constructor of the same class or of the direct superclass. If a constructor body does not begin with an explicit constructor invocation and the constructor being declared is not part of the primordial class Object, then the constructor body is implicitly assumed by the compiler to begin with a superclass constructor invocation "super();", an invocation of the constructor of its direct superclass that takes no arguments.

[Amit Ghorpade]

Hi,
As already said above, "that super()" may not be useful, and just to add on,
all Java classes are CHILDREN of java.lang.Object.

Hope this helps

[Muhammad Saifuddin]

Originally posted by Amit Ghorpade:
all Java classes are CHILDREN of java.lang.Object.

that's what I thought to point you regarding to the concept super class,

here is tutorial for Object as a Superclass and Using the Keyword super provided by Sun.

These might help you in that.