MID Term exam

Question 1

Program

Answer 1

a set of coded instructions that enables a machine to perform a desired sequence of operations

Question 2

Coding Sequence of events

Answer 2

Analyze the problem, Develop interface, Design the logic, code the logic, test and debug, Complete documentation

Question 3

How to control labels in C#

Answer 3

you can put commands on labels, by typing the specific label and with a ( . ) type what command you want

Question 4

How to use picture boxes

Answer 4

you can upload a file to picture boxes, and change the import from project file which will come with the saved code, or from local importing that will only exists on your hard drive

Question 5

Button (text/click event)

Answer 5

if you type .text it will change the text of anything, click events says every time the button is clicked the code is read

Question 6

Text boxes

Answer 6

allows the user to type in these

Question 7

String

Answer 7

Any number of alphabetic, numerical, and special characters. they are read differently as numbers, not for calculations

Question 8

String continuation

Answer 8

using a string in quotes, you can add + after with another string following

Question 9

Data types non-decimal length (smallest to largest)

Answer 9

short, int, long

Question 10

Data types for Decimal numbers (smallest to largest)

Answer 10

float, double, decimal

Question 11

Bool

Answer 11

Boolean, either true or false value

Question 12

Date

Answer 12

ranges from Jan, 1 0001 to December 31st 9999

and time 0:00:00 to 23:59:59

Question 13

Declarations (establishing variables)

Answer 13

this allows you to set an ambiguous name to a value, to organize and do specific calculations.

Question 14

.Tostring

Answer 14

c# will not display numbers so they must be converted to strings so they can be displayed, and no longer used for calculations
in form .Tostring(“0.0”)

Question 15

.Parse

Answer 15

for example int.parse will change string into data types used for calcualtions

Question 16

.TryParse

Answer 16

try parse will convert strings to data types, but if this is not possible this will default to the number 0

Question 17

Debugging Breakpoints

Answer 17

this will break the running code at this particular step, indicated with a red dot and will simulate what the code ran

Question 18

Debugging Single stepping

Answer 18

using f11, you can step into and look at what the code is doing at every point, one step at a time

Question 19

IF statements

Answer 19

This will trigger a Boolean reaction, verifying what steps would happen if true or false, these are between brackets where code will instruct what to do next

Question 20

Else statements

Answer 20

Following a IF boolean statement , if the value specified is not met, else in brackets will contain what to do next
IF (example == true)
 {
}
else {
}

Question 21

how to use NOT decision

Answer 21

! (x < 10) use “ ! “ outside parenthesis to say not

Question 22

AND decision

Answer 22

(x >= 10) && (x <= 20)

use two && between two statements

Question 23

OR decision

Answer 23

(x < 10) || (y < 10)

use || between two statements

Question 24

Switch Decisions

Answer 24

using a constant variable 
switch (x) { list different cases and what steps need to be done int them with typing break; at the end to show that the condition is finished 
switch (x) {
case 1:
points = points + 1;
break:

Question 25

Loops: While

Answer 25

this loop will continue until a certain condition is met and this condition follows “While”

Question 26

Loops: For

Answer 26

this loop is used for a condition, or range or values that we already know,.

Question 27

Loops: Do

Answer 27

Do loops will perform a specific action as the condition is completed, this loops starts with do and follows with a while after 
Do
{
} 
While... (   )

Question 28

Radio buttons and groups

Answer 28

radio buttons only allow one option to be selected at a time, so groups must be set if you want different categories of options to be chosen instead of one

Question 29

Number Generator

Answer 29

this will make a number generator, you must establish a variable, type Random (name of gen) = new.Random();
then you want the scope
variable = (name of gen).next(0,21);

int Gen1;
Random Numbergenerator1 = new Random();
Gen1 = Numbergenerator1.Next(0,21);

the range should be from the base number to a set number but the set number must be +1

Question 30

Number Generator

Answer 30

this will make a number generator, you must establish a variable, type Random (name of gen) = new.Random();
then you want the scope
variable = (name of gen).next(0,21);

int Gen1;
Random Numbergenerator1 = new Random();
Gen1 = Numbergenerator1.Next(0,21);

the range should be from the base number to a set number but the set number must be +1

Question 31

Standard Deviation

Answer 31

from a range of data points, SD = SQ ROOT of ((a number from the value) minus (the mean)^2 / total number of values)

Question 32

Form level Variables

Answer 32

Variables set at the form level so this variable is known in every part of the code

Question 33

Normal Distribution

Answer 33

usually a bell curve showing the range of the averages

Question 34

Uniform Distribution

Answer 34

exact distribution numbers, like a dice can only have 1-6 possibilities

Question 35

Poisson Distribution

Answer 35

the formula used to calculate the rate that something will happen when given the average occurrences

Question 36

Series Circuits

Answer 36

circuits that get the same amount of power throughout, this doesn’t have and branching (ladder type) connections… kind of like a circular track.

Question 37

Parallel Circuits

Answer 37

circuits that have multiple different paths with the same voltage, depending on the resistance this will change how much voltage is found through the different branches.

Question 38

OHMS law

Answer 38

V = IR