Methods updating instance variables java

26 Apr

So is there a better way of doing this, and which way is generally considered best practice? To modify instances of other classes it's best to use getters and setters.It's indeed true that you should prevent other classes from modifying instance variables directly; in that case it's best to use getters and setters.

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For the most part, you use the class merely to create instances and then work with those instances.The computer will prompt you to enter a guess (a cell), that you’ll type at the command-line as “A3”, “C5”, etc.).In response to your guess, you’ll see a result at the command-line, either “Hit”, “Miss”, or “You sunk Pets.keyword to create fields and methods that belong to the class, rather than to an instance of the class.When a number of objects are created from the same class blueprint, they each have their own distinct copies of instance variables.First, we need to figure out the general flow of the game. The goal is the same, though, so the game still needs to make a Dot Com instance, assign it a location somewhere in the row, get user input, and when all of the Dot Com’s cells have been hit, the game is over.This simplified version of the game gives us a big head start on building the full game.But I've been told that it's better practice to use get/set methods and not give direct access to variables outside a class.Though this was for when I had an instance of the class in another class, not for subclasses and superclasses.Java programming is intimately involved with object-oriented software development.In this sample book chapter, you'll learn how to deal with objects: creating them, reading their values and changing them, and calling their methods.