Which is True?

[zaaharhassan]

Which of the following statements are true about constructors and methods?

A constructor has it's own name, a return type and is invoked using the new operator.
A function has it's own name, a return type and is invoked using the dot operator.
A constructor has the name of the class, no return type and is invoked using the new operator.
1 & 2
2 & 3
1, 2 & 3

None of the statements are true

[JosAH]

And what do *you* think?

kind regards,

Jos

[bvmpriya]

The answer is 2&3 are true

[JosAH]

The answer is 2&3 are true

class B { 
   void mb() { ... } 
}
class D extends B { 
   void md() { ... }
   public void test() {
      mb(); // no dot
      md(); // no dot
   }
}

The dot isn't always needed ...

kind regards,

Jos

[myusernotyours]

class Foo{

public Foo(){
...
if(x == b)
return; // Legal

//If we are here continue doing stuff...
...
...

}

public void jump(){
....
....
return; // Legal but not nessesarily nessesary.
}

public boolean sleep(){
...
...
return true; // Mandatory
}
}

So does the method jump have a return type?
Void indicates only the absence of a return type. It's not a type. The compiler does not even expect us to return, because there is nothing to return.

Can we therefore say the constructor Foo() and the method jump() are the same in terms of return types in that they both return nothing? The only thing perhaps would be that the compiler ALWAYS insists on a constructor returning nothing (void) so we don't even have to say. But a method may return a value.
But then why did sun insist on using void where there is no Return Type in methods?? Why not do it just like for the constructor??

Rgds

Alex.

[JosAH]

But then why did sun insist on using void where there is no Return Type in methods?? Why not do it just like for the constructor??

To keep the C and C++ programmers happy. There are many many things that
could have been solved in another way but Java wants to look similar to those
two other programming languages.

kind regards,

Jos

[myusernotyours]

To keep the C and C++ programmers happy. There are many many things that
could have been solved in another way but Java wants to look similar to those
two other programming languages.

kind regards,

Jos

Happy are the meek for they shall see god.

rgrds

Alex.