File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Beginning Java and the fly likes String to char problems Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "String to char problems" Watch "String to char problems" New topic

String to char problems

Kevin P Smith
Ranch Hand

Joined: Feb 18, 2005
Posts: 362

Trying to compare the first charater from SQL return with all the characters from the Alphabet.

I have all the code apart from one problem. The alphabet characters are of type 'char' and the SQL returns of type 'String' (or .substring(0,1) to be exact) but when I try to compare the alphabet letter with the String
( if(char == string)... ) I get a "Incompatible type for char. Can't convert char to java.lang.String" error.

So I need to either find a way to compare a char to a String.substring or a way of converting a String.substring to a char and comparing that to another char.
[ November 30, 2005: Message edited by: Bear Bibeault ]
Ben Souther

Joined: Dec 11, 2004
Posts: 13410

You could compare them as strings.

There is also the String.charAt(int) method...
[ November 30, 2005: Message edited by: Ben Souther ]

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf
Kevin P Smith
Ranch Hand

Joined: Feb 18, 2005
Posts: 362

Sometimes looking at things from a different angle...

Job done,

Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 63839

Moved to Java in General (beginner)

[Asking smart questions] [About Bear] [Books by Bear]
I agree. Here's the link:
subject: String to char problems
jQuery in Action, 3rd edition