• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Ron McLeod
  • Paul Clapham
  • Bear Bibeault
  • Junilu Lacar
Sheriffs:
  • Jeanne Boyarsky
  • Tim Cooke
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • salvin francis
  • Frits Walraven
Bartenders:
  • Scott Selikoff
  • Piet Souris
  • Carey Brown

Question

 
Greenhorn
Posts: 28
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
class Outer {
private Outer() {
System.out.println("Executing Step1");
}
public void Outer() {
System.out.println("Executing Step2");
}
}
public class q2 extends Outer {
public static void main (String[] args) {
Outer t = new Outer();
t.Outer();
}
}

what is the output of this code and why is it so.
 
Author & Gold Digger
Posts: 7617
6
IntelliJ IDE Java
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The code does not compile since the default constructor of Outer is private and thus not usable outside the Outer class.
If you change the modifier private to public for the default constructor the output is
Executing Step1
Executing Step2
which makes sense, the first line is written when the constructor is called and the second when you call the method Outer !
But this is poor design to name a method the same name as the class name since it can be misleading and error-prone.

------------------
Valentin Crettaz
Sun Certified Programmer for Java 2 Platform
 
Ranch Hand
Posts: 2120
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
This code doesn't compile because the constructor is private.
Yes it seems that the compiler doesn't complain having a method with the same name as the Class or even an identifier for a field:
int Outer; //I have checked it out
 
what if we put solar panels on top of the semi truck trailer? That could power this tiny ad:
Thread Boost feature
https://coderanch.com/t/674455/Thread-Boost-feature
    Bookmark Topic Watch Topic
  • New Topic