Chapter2 Encapsulation (Java)

Chapter2 Encapsulation (Java)

• 1.
  Chapter 2 Encapsulation Dyah FajarNur Rohmah
• 2.
  Introduction Encaptulation is thetechnique of making the fields in a class private and providing access to the fields via public methods. Encapsulation also can be described as a protective barrier that prevents the code and data being randomly accessed by other code defined outside the class.
• 3.
  Why need encapsulation? Combiningdata and how it's manipulated in one place: This is achieved through the state (the private fields) and the behaviors (the public methods) of an object. Only allowing the state of an object to be accessed and modified through behaviors: The values contained within an object's state can then be strictly controlled.
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  Why need encapsulation?(cont.. ) Hiding the details of how the object works: The only part of the object that is accessible to the outside world is its behaviors. What happens inside those behaviors and how the state is stored is hidden from view. public functions private functions private data
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  Maintainability Encapsulation draws aboundary around a set of data and method. This allows a developer to use the code without having to know how it works, but with what input data and its input data range and with what it returns.
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  Flexibility Encapsulation makes thecode easier to visualize. This means codes can be arranged “visually” before implementing.
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  Extensibility Makes long termdevelopment easy. Updates can be made by changing the encapsulated part without changing the input and output formats.
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  Kesimpulan Encapsulation is thetechnique of making the fields in a class private and providing access to the fields via public methods. The main benefit of encapsulation is the ability to modify the implemented code without breaking the code of others who use the implemented code.
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  Kesimpulan (cont.. .) Encapsulationmakes the programing code: Flexi ble Main taina ble Exte nsibl e
• 10.
  Thank You Reference from: GithushanGengaparam - Madhusoothanan Lakshitha Imbulpitiya - Sudheera Karunaratne