Adding some months to an existent date.//

[Date]AddingMonths.m

+ (NSDate*)dateAddingMonths:(NSInteger)months{
    NSDateComponents* dateComponents = [[NSDateComponents alloc]init];
    [dateComponents setMonth:months];
    NSCalendar* calendar = [NSCalendar currentCalendar];
    NSDate* newDate = [calendar dateByAddingComponents:dateComponents toDate:self options:0]; //NSDate category
    
    return newDate;
}