API and declaration of functions/classes in Java
I'm reading the first chapter of Algorithm (and the first two chapters of Introduction to Programming in Java) by Sedgewick and Wayne. I don't understand what an API means. The following is an excerpt from the book:
An example is given as follows:
Here are my questions:
- Is an API part of the Java codes?
- How is an API different from declaration of functions/classes?
Solution
An API is the interface to a code library. It consists of the objects and methods used to interact with a library.
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