Long-Term Learning

Learn efficiently and remember over time.

Start Long-Term Learning

Get personalized study reminders at intervals optimized for better retention.
Track your progress on this set by creating a folder
Or add to an existing folder

Add this set to a folder

  • Objective-c contains a powerful built-in tool known as the _______ ________. It does an analysis of your code and can find program logic errors.

    static analyzer

    How to insert comments into objective C

    / comment /

    Why to insert many comments

    1. Logic is still fresh in your mind
    2. Reap the benefits of commenting while debugging
    3. You don't want to have to go back and insert comments after the fact


    Imports the included from the following file into that program


    A special name that indicates precisely where the program is to begin execution.


    An expression that is terminated with a semicolon.

    autorelease pool

    Any program statements between curly braces {} are executed in this context. It is a mechanism that allows the system to efficiently manage the memory that your system uses.






    Used to prevent you from writing constant C-style code


    A function that simply displays or logs its argument (or arguments.)


    Every objective-c program statement must be terminated by a semicolon.


    newline character - Any characters printed after this will be printed on a new line.

    Can NSLog display the value of variables as well?



    Variables defined as this type hold only integer values.


    Displays an integer value

    Please allow access to your computer’s microphone to use Voice Recording.

    Having trouble? Click here for help.

    We can’t access your microphone!

    Click the icon above to update your browser permissions above and try again


    Reload the page to try again!


    Press Cmd-0 to reset your zoom

    Press Ctrl-0 to reset your zoom

    It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

    Please upgrade Flash or install Chrome
    to use Voice Recording.

    For more help, see our troubleshooting page.

    Your microphone is muted

    For help fixing this issue, see this FAQ.

    Star this term

    You can study starred terms together

    NEW! Voice Recording

    This is a Plus feature