What is the difference between variables declared as final and private?

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What is the difference between these two types of variables and why can’t they be accessed in certain parts of the code? I read about private, public and abstract methods, but did not understand the use of the ending.

java variables

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  1. A variable of the type final can only be initialized once, either through an initializer or through an assignment.
  2. A variable of the type private can only be directly modified and accessed within the class itself. To access and modify a variable of this type, outside the class in question, one must resort to getters and setters of the variable.

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