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تجمع شيتات واسئلة oop

تجمع شيتات واسئلة oop

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interface cannot be declared as private or protacted
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interface&&interface علاقة وراثة interface&®ular class علاقة implementation

ال interface تحقق ال multiple. بس الinheriance و abstract لا

ملاحظة الشيت مكتوب ان الinterface مستحيل بكون لها تنفيذ في كلاس بس في اصدارات 8.9. قعدت تنفذ جوا عادي. بواسطة 3طرق 1.يندار private 2. keyword defult 2. static methods

the methods declared in interface class are by
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interface is class
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it is used to achieve abstraction and mulilevel inheritance in java
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....... is a process where you show relevant data and hide unnecessary details of an object from the user
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an interface is used for all abstraction
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نبدو في interface

A final variable that has no value is called a blank final variable or initialized final variable.
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Encapsulation provides re-usability of code and can be used to add additional features to an exciting class, without modifying it.
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The relationship between the class and its superclass is known as the....
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If a class is designed to be extended, it is better to provide a ....... constructor to avoid programming errors
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The HAS-A relationship is based on ......., rather than ........ .
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