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Q. What is a pattern?

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Patterns in programming are like recipes in cooking. They are not ready dishes, but instructions for slicing and dicing products, cooking them, serving them and so forth.

Pattern content As a rule, a pattern description consists of the following:

  • a problem that the pattern solves;
  • motivation for solving the the problem using the method suggested by the pattern;
  • structures of classes comprising the solution;
  • an example in one of the programming languages;
  • a description of the nuances of pattern implementation in various contexts; relations with other patterns.

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