07-10 Chapter Intro to Java

Question 1

What is a Just-In-Time Compiler?

Answer 1

It is a Java interpreter

Question 2

What are the two stages of Java which provides platform independence?

Question 3

Name some of Java Application Types?

Answer 3

Console, GUI, Applet, and Servlet Applications

Question 4

How to you compile a project in Netbeans without running it?

Answer 4

You right-click on the project and select Build Command

Question 5

What files is needed in order for javadocs to generate correctly?

Answer 5

overview.html (Information about project) & package.html (information about package)

Question 6

What is OOP?

Answer 6

Object Oriented Programming

Question 7

Name some benefits of OOP?

Answer 7

1. increase software productivity 2. Reuse software across 3. Software maintainable 4. lower develop costs

Question 8

What are the principles of OOP?

Answer 8

1. Modularity, ease modification 2. modules coupling reduced: data and function combined, data encapsulate, creates ‘black box’ behavior

Question 9

What was the opposite of OOP programming?

Answer 9

Procedural programming

Question 10

Where does all the java code reside?

Answer 10

a file called a class

Question 11

What are classes?

Answer 11

they are like blueprints or cookie cutters and the actual cookie is the object

Question 12

What is instantiation?

Answer 12

the construction of an object defined by a class

Question 13

What is a field?

Answer 13

data item definition held in class or object

Question 14

What is a method?

Answer 14

software procedure, operates on class or object data

Question 15

What is a static field or method?

Answer 15

it exists in the class without instantiating

Question 16

What is an instance?

Answer 16

field or method exists only when object class in constructed

Question 17

What does a class contain?

Answer 17

1. instance of class 2. constructor method 3. static main method as entry point 4. static field and methods

Question 18

What does object contain?

Answer 18

1. Instance or object fields 2. Methods

Question 19

Name some of the objects characteristics

Answer 19

1. Behavior, defined my methods 2. State, invoking or calling methods 3. identity, unique name

Question 20

Relationship between classes: what is dependence?

Answer 20

“Uses a” Class A is dependent on Class B

Question 21

Relationship between classes: what is aggregation?

Answer 21

“Has-a” Class contains object of another class

Question 22

Relationship between classes: what is inheritance?

Answer 22

“Is-a” more specific class can inherit from a more generic class

Question 23

Study the following Class Diagram

Question 24

Study the following Class Anatomy

Question 25

How to create objects out of class

Question 26

Learn how to create a constructor with parameters

Question 27

Learn how to Code a method

Question 28

What is overloading?

Answer 28

when methods have same name but different parameters.