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Methods of a Java interface are implicitly abstract and cannot have implementations where as a Java abstract class can have instance methods that implements a default behavior. Variables declared in a Java interface is by default final. An  abstract class may contain non-final variables. Members of a Java interface are public by default. A Java abstract class can have the … Read more

Hi I faced this problem and want to share it with u so that it can save your time….. when i updated my XCode project from svn its build failed due to this error… Undefined symbols for architecture i386:   “_OBJC_CLASS_$_Help”, referenced from:       objc-class-ref in Home.o ld: symbol(s) not found for architecture … Read more

Hiyou can find some good usefull code snippets http://iphonesdksnippets.com/archive.aspx

Hi steps of adding custom fonts in xcode is Add your custom font files into your project using XCode as resources. Add key font provided by application to your info plist.(array key) For each font add the full font file name along with extension as item into the key. Now you can use the font … Read more