Data (instance variables) and code (methods) for operating on that data are bundled together in objects. The actual definition of what these instance variables and methods are is found in a class.
For example, we might have a
String class. The class defines storage for the data (the characters that make up the string) and methods for working with that data (as an example, a method to return the length of the string). You instantiate an instance of the class to produce an actual
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