jQuery in Action, 3rd edition
The moose likes JDBC and Relational Databases and the fly likes Calling equals method on String Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Databases » JDBC and Relational Databases
Bookmark "Calling equals method on String" Watch "Calling equals method on String" New topic

Calling equals method on String

shashi kir

Joined: Sep 09, 2011
Posts: 2
I have a String s="apple"
What is the difference between s.equals("apple") and "apple".equals(s)? and which is better? Please post the correct answer
Campbell Ritchie

Joined: Oct 13, 2005
Posts: 44476
That depends which language you are using. Both are valid syntax in Java, but they mean different things. I think only the one with = is valid SQL syntax, but you should check whether you want "apple" or 'apple' in SQL.

If you try passing s in Java and s is null, then s.equals... will throw a NullPointerException and "apple".equals(s) will evaluate to the value false.
I agree. Here's the link: http://aspose.com/file-tools
subject: Calling equals method on String
It's not a secret anymore!