Sentiment Analysis: Good link

http://andybromberg.com/sentiment-analysis/

xcode shortcut for finding

Cmd + Shift + o opens the "Open quickly" dialog, where you can quickly find and open files that contain the text you enter.

Iphone: Removing phone numbers formatting

 NSString *newString = 

[[(NSString *)(phoneNumber) componentsSeparatedByCharactersInSet:                                                    [[NSCharacterSet decimalDigitCharacterSet] invertedSet]]                                                   componentsJoinedByString:@""];

iphone: core data(database) storage

In constant.m

NSString *const kEntityNameUser = @"User";

In constant.h

extern NSString *const kEntityNameUser;

In manager file

- (void)createNewUser :(NSString *)username

                      :(NSString *)password

                      

{

    

    User *newUser = [NSEntityDescription insertNewObjectForEntityForName:kEntityNameUser inManagedObjectContext:self.context];

  

       newUser.username=username;

    newUser.password=password;

    

    [self save];

}

-(void)save {

    NSError *error;

    [self.context save:&error];

}

iphone: NSNumber to boolean and vice versa

NSNumber to Boolean

BOOL b = [num boolValue];

Boolean to NSNumber

num=[NSNumber numberWithBool:YES];