Save and Retrieve data from NSUserDefaults

 NSUserDefaults *userDefaults=[NSUserDefaults standardUserDefaults];  

Set values to userDefaults 

 [userDefaults setBool:YES forKey:@"keyForBOOL"];  

 [userDefaults setDouble:10.5454 forKey:@"keyForDouble"];  

 [userDefaults setFloat:10.5 forKey:@"keyForFloat"];  

 [userDefaults setInteger:10 forKey:@"keyForInteger"];  

 [userDefaults setURL:[NSURL URLWithString:@"http://nsuserdefaults-in-iphone-sdk.blogspot.in/"]forKey:@"keyForURL"];  

 [userDefaults setObject:@"Hello" forKey:@"keyForObject"];  

 [userDefaults synchronize];  

Thats all. all your values will be stored in your userDefaults.

Get Values from userDefaults.

 NSUserDefaults *userDefaults=[NSUserDefaults standardUserDefaults];  

 BOOL isYou = [userDefaults boolForKey:@"keyForBOOL"];  

 double varDouble = [userDefaults doubleForKey:@"keyForDouble"];  

 float varFloat = [userDefaults floatForKey:@"keyForFloat"];  

 NSInteger varInt = [userDefaults integerForKey:@"keyForInteger"];  

 NSURL *url = [userDefaults URLForKey:@"keyForURL"];  

 NSString *str = [userDefaults objectForKey:@"keyForObject"];  

Thanks & Regards

Angel AppTech