قديم منذ /29-04-2017, 03:47 PM   #1

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Question 1
1. The best way to describe an Interface:

It is a superclass that other classes extends it.

It is like a contract that must be implemented by any class that implements it.

It is a hierarchy structure.

It is a recursive call to implement methods.
10 points
Question 2
1. In UML diagram Inheritance is represented by

a dotted line open arrow that points from the child to the parent

a solid line open arrow that points from the child to the parent

a solid line open arrow that points from the parent to the child

a dotted line closed arrow that points from the child to the parent
10 points
Question 3
1. In SDLC Waterfall method, what is the deliverable of the Implementation phase

The Design Diagrams

Testing

The code itself that will run the system

The Analysis detailed describtion
10 points
Question 4
1. The performance of merge sort in big Oh is n(n log(n))
True
False
10 points
Question 5
1. In Inheritance which statement is true

a superclass reference can point to it's subclass object without cast

we must cast to point a parent to it's child

none of the above

a subclass reference can point to it's superclass object without cast
10 points
Question 6
1. The Spiral Method of software development is characterized by

very rigid and inflexible

flexible since it can adapt to changing requirements

very costly and time consuming

finish a phase completely for all the system before we go into the next phase
10 points
Question 7
1. The selection sort is faster than merge sort
True
False
10 points
Question 8
1. It is impossible for recursion to go into infinite situation
True
False
10 points
Question 9
1. The concept of polymorphism in Java

means we must override the methods

none of the above

We must implement all the methods

Allows the same method to be called, but it will behave differently depending on the object that calls it.
10 points
Question 10
1. In Inheritance the java keyword for a subclass to Inhiret from its superclass is:

construct

implements

extends

protected








الملفات المرفقة
نوع الملف: docx Question 1.docx‏ (55.8 كيلوبايت, المشاهدات 48)
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قديم منذ /29-04-2017, 06:34 PM   #2

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S130143674 غير متواجد حالياً

 

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