• 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
  • Tim Cooke
  • Devaka Cooray
  • Ron McLeod
  • Jeanne Boyarsky
Sheriffs:
  • Liutauras Vilda
  • paul wheaton
  • Junilu Lacar
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Piet Souris
  • Carey Brown
  • Tim Holloway
Bartenders:
  • Martijn Verburg
  • Frits Walraven
  • Himai Minh

toString method

 
Ranch Hand
Posts: 635
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator


If all this mehtod do is return a string, Then I can define any method can do this! What is the real mission of this method?
 
Bartender
Posts: 2700
IntelliJ IDE Opera
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Because every Object has the toString() method you can iterate through a Collection of objects and print the content. Also it is often used for debugging and logging purposes.
 
Java Cowboy
Posts: 16084
88
Android Scala IntelliJ IDE Spring Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

abalfazl hossein wrote:If all this mehtod do is return a string, Then I can define any method can do this! What is the real mission of this method?


I don't understand your reasoning. It's as if you think that the purpose of the toString() method is so simple that it's not worthy of existence. As if every method you write has to do something important and complicated, something that you really have to think hard about, otherwise it's not worth it

Ofcourse you can write any other method that returns a string representation of the object. But it will not work in the same way as the toString() method, which will be called automatically when you do something like this:
 
You have to be odd to be #1 - Seuss. An odd little ad:
the value of filler advertising in 2021
https://coderanch.com/t/730886/filler-advertising
reply
    Bookmark Topic Watch Topic
  • New Topic