software design tech mid term review

Question 1

"if S is a subtype of T, then objects of type T may be replaced with objects of type S" is Liskov Substitution Principle

Accepted Answer

True

Question 2

toString() is a method in every object and it returns a string representation ofthe object

Accepted Answer

True

Question 3

behavioral, structural, and observational are the 3 types of design patterns

Accepted Answer

False

Question 4

"Subtypes must be substitutable for their base type" is what SOLID design principle

Accepted Answer

Liskov Substitution Principle

Question 5

Each ______ describes a problem which happens repeatedly in our enviorment then discribes the solution to that problem.

Accepted Answer

design pattern

Question 6

what is a true property of a final reference type variable

Accepted Answer

Once you initialize it , you cannot refer it to another object

Question 7

"A class and a method should have one, and only one, reason to change" is what SOLID design principle

Accepted Answer

Single Responsibility Principle

Question 8

java code is the same witgh the exact same syntax as c#

Accepted Answer

False

Question 9

what is a true property of a final method

Accepted Answer

A method cannot be overridden

Question 10

"to access a aggregate object’s contents without exposing its internal representation"applicablity for? (design pattern)

Accepted Answer

iterator

Question 11

packages are containers for classes they are used to keepthe class name space compartmentalized

Accepted Answer

True

Question 12

design principles are a set of design rules

Accepted Answer

False

Question 13

we should strive for loose couypling between classes

Accepted Answer

True

Question 14

_______ is a programming paradigm based on defining, creating, and manipulating objects to develop reusable software.

Accepted Answer

OOP

Question 15

why should software be designed?

Accepted Answer

so it is built to be stable and long lived

Question 16

"High-level modules should not depend on low-level modules" is what SOLID design principle

Accepted Answer

Dependency Inversion Principle

Question 17

how many core design princlples are there in software development?

Accepted Answer

around 12

Question 18

what is the most important thing when discribing design patterns?

Accepted Answer

participants

Question 19

"if T is a subtype of S, then objects of type T may be replaced with objects of type S" is Liskov Substitution Principle

Accepted Answer

False

Question 20

"Classes should not be forced to depend on methods that they do not use" is what SOLID design principle

Accepted Answer

Interface Segregation Principle

Question 21

The final keyword can be used with variables , method and NOT classes

Accepted Answer

False

Question 22

"to support multiple traversals of aggregate objects" applicablity for? (design pattern)

Accepted Answer

iterator

Question 23

what are the four essential elements for design patterns

Accepted Answer

pattern name, solution, problem, and consequences

Question 24

The _____ keyword is used to create fields and methods that belong to the class,rather than to an instance of the class

Accepted Answer

Static

Question 25

what is a true property of a final primitive type variable

Accepted Answer

Once you initialize it , you cannot modify it

Question 26

behavioral, structural, and creational are the 3 types of design patterns

Accepted Answer

True

Question 27

_______ are a set of high level guidlines which are used on top of the OOP concepts to design better software

Accepted Answer

design principles

Question 28

many of java&#x27;s OOP features were influenced by C++

Accepted Answer

True

Question 29

It is NOT recommended that all subclasses override the toString() method

Accepted Answer

False

Question 30

what is the diffrence between a design principle and design pattern?

Accepted Answer

design patterns are solutions and design principles are guidlines

Question 31

"System.Out.println("hello world");" does what in java

Accepted Answer

prints out the string hello world

Question 32

what is NOT true about java

Accepted Answer

a object can extend to more then one other class

Question 33

what is NOT part of the observer design pattern

Accepted Answer

the subject notifies the observers continuously every second

Question 34

"The object that we need to maintain the state" applicablity for? (design pattern)

Accepted Answer

memento

Question 35

What is NOT a way the observer design pattern achives loose coupling

Accepted Answer

can inherit new observers at any time

Question 36

what is a true property of a final class

Accepted Answer

A class cannot be subclassed

Question 37

"Software entities should be open for extension, but closed for modification" is what SOLID design principle

Accepted Answer

Open/Closed Principle

software design tech mid term review

Questions 37

software design tech mid term review

Questions 37