• 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 Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

static

 
Greenhorn
Posts: 16
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I was wondering why in the following code for factorial, I needed to declare the factorial and iter methods static.


public class example_fact2{
public static void main(String[]args){
System.out.println(factorial(7));
}
public static int factorial(int n){
return iter(1, 1, n);
}
private static int iter(int counter, int product, int n){
if(counter> n){
return product;
}
else{
return iter(counter+1, product*counter, n);
}
}
}
 
Greenhorn
Posts: 17
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Originally posted by Juva Yuva:


Thats because you declared the method (factorial) as Class method. And since main is static , methods can be called directly . Otherwise It can be accessed in non-static way , by creating instance of the class.

1) Try creating an instance of the class in the main method , call the factorial method with the instance.
2)And remove the static modifiers from the methods

 
reply
    Bookmark Topic Watch Topic
  • New Topic