Changes

Working with String Objects in Objective-C

582 bytes added, 20:49, 3 November 2009

→‎Checking for String Prefixes and Suffixes

== Checking for String Prefixes and Suffixes ==

A string object can be tested to identify whether the string begins or ends with a particular sequence of characters (otherwise known as prefixes and suffixes). This is achieved using the ''hasPrefix'' and ''hasSuffix'' methods respectively, both of which return boolean values on whether a match is found or not.

<pre>

NSString *string1 = @"The quick brown fox jumped";

BOOL result;

result = [string1 hasPrefix: @"The"];

if (result)

NSLog (@"String begins with The");

result = [string1 hasSuffix: @"dog"];

if (result)

NSLog (@"String ends with dog");

</pre>

== Converting to Upper or Lower Case ==