test 2

Question 1

for each loop array

Answer 1

static void Main( )
{
int[] fibarray = new int[] { 0, 1, 2, 3, 5, 8, 13 };

        foreach (int i in fibarray)
        {
            Console.WriteLine(i);
        }
    }

Question 2

class

Answer 2

a program construct used to represent an entity type in the real world… used as a templit to create objects… classes contain both data and procedural information

Question 3

object

Answer 3

an instance of a class… reps a real-world occurrence of an entity

Question 4

attribute

Answer 4

characteristic of a class.
In-line attributes are ones that are declared within the class
Associated attributes are contained in another class.

Question 5

Method

Answer 5

procedure that applies to the data in a class.

Question 6

Inheritance

Answer 6

a class association that allows the attributes and methods of a parent class to be available to the child classes.

Question 7

class visibility modifiers

Answer 7

Public (+)
Protected (#)
Package (~)
Private (-)

Question 8

static

Answer 8

means that the class component is
    associated with the class

Question 9

UML Class Diagrams

Answer 9

Class name – Starts with capital, camel case thereafter.
Attributes – Characteristics of the class (i.e., variables and constants).
Methods – Behaviors of the class (i.e., procedures).
Inheritance links – Associations between classes

Question 10

CASE Selection Structure

Answer 10

SELECT CASE light-color
CASE “red”
Print “stop light”
CASE “yellow”
Print “caution light”
CASE “green”
Print “go light”
CASE Else
Print “broken light”
ENDSELECT

Question 11

Iteration Constructs

Answer 11

DO WHILE - Test at top, 0 or more loops

DO UNTIL - Test at bottom, 1 or more loops

Question 12

Access Modifiers

Answer 12

Protected
Internal
Protected Internal
Public

Question 13

single dimension array

Answer 13

decimal[] money = new decimal[100];

Question 14

rectangular 2-D

Answer 14

type[ , ] identifier = new type [intValue, intValue];

Question 15

jagged 2-D

Answer 15

type[][] identifier = new type [intValue] [];

Question 16

Enumerations

Answer 16

a convenient way to create a set of symbolic names that map to known numeric values.
enum StudentType
	 {
	  Freshman,  //=0
 	  Sophomore, //=1
 	  Junior,    //=2
 	  Senior     //=3
 	 }
using enum.
StudentType.Freshman

Question 17

structs

Answer 17

are data structures composed of several pieces of data.
public struct Product
	{
 	 public string Code;
 	 public string Description;
 	 public decimal Price;
	}

Question 18

sealed vs abstract

Answer 18

abstract–cannot be instantiated, only derived from.

sealed–cannot be derived from, only instantiated.

Question 19

encapsulation

Answer 19

classes and objects can hide information from the outside world

Question 20

Polymorphism

Answer 20

The fact that child classes can override the methods and attributes of the super class

Question 21

data members

Answer 21

store data associated with the class or instance of the class.

Question 22

Function members

Answer 22

execute code and model the actions of the
real-world object that the class represents.

Question 23

creating objects

Answer 23

Car myCar= new Car();

Question 24

adding field values to an object

Answer 24

ObjName.fieldName = “value”

Question 25

custom constructor

Answer 25

``` public ObjName(int myInt) { Console.WriteLine(“Custom code here”); } ```

Question 26

override methods

Answer 26

takes an existing inherited method and provides a new implementation of that method.

Question 27

hiding methods

Answer 27

classes or structs redeclare names that were inherited from base classes

Question 28

TryParse

Answer 28

is used to convert text data to numeric without causing a run-time exception int.TryParse(input, out val);

Question 29

try-catch-finally

Answer 29

try{ // Statement(s) which can cause an exception }catch(type x){ // Statement(s) for handling the exception} finally{ // Cleanup code (if needed)}

Question 30

params

Answer 30

create a parameter array which allows you to pass an indefinite number of arguments.

Question 31

out

Answer 31

requires the called function to give the parameter a value. Allows functions to pass data back to calling routine.

Question 32

ref

Answer 32

value is initially assigned by the calling routine, but may be changed within the function. Allows values to be passed back