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Message: <blockquote data-quote="JimAde" data-source="post: 2786949" data-attributes="member: 16739">Close but not quite dead-on.  <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile    :)"  data-smilie="1"data-shortname=":)" />A class is basically a bunch of code that combines data with operations for working on that data.  In your example, the LeftHand class might have properties (data) like width, weight, location, etc.  It would also have methods (operations) like grasp(), point() and makeRudeGesture().  The class exists, in a sense, separately from the program control code (which will be in another class, but let's not get into that).  The control code can create an instance of the class, set the properties of that instance, and make that instance do operations.  You could create more than one instance as well, if that's appropriate.  In this case that's probably only appropriate if your program is called Shiva or something. <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile    :)"  data-smilie="1"data-shortname=":)" />Inheritance: In the example here, all the properties and methods I listed are probably inherited from the Hand class.  LeftHand extends hand which means it is a kind of hand.  This is important because it means anything you can say about a Hand you can also say about a LeftHand.  RightHand would inherit all the same properties and methods, but might also have a hitchHike() method that LeftHand doesn't have.I hope that clarifies things a little.  It's a big topic. <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile    :)"  data-smilie="1"data-shortname=":)" /></blockquote>

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