Boolean Variables – computer memory locations where programmers can temporarily store data while an application is running.
String – a group of characters enclosed in quotation marks.
Method – a specific portion of the class instructions and its purpose is to perform a task for the class.
Import System. Globalization – imports the System. Globalization namespace, which contains the definitions for the numberStyles and numberFormatInfo.CurrentInfo values.
Floating point- is a number that is expressed as a multiple of some power of 10.
Unicode – the universal coding scheme for characters.
Identifier- the name of an object.
Dim – dimension; A method to declare a variable in Visual Basic.
Literal constant - an item do data whose value does not change while the application is running.
Literal type character - a character used to convert a literal constant to a different data type.
TryPase Method – a method used to convert a string to that numeric data type.
Line continuation character – an underscore, which must be preceded by a space; used to break up a long instruction into two or more physical lines in the Code Editor window.
Convert class - this class contains methods that return the result of converting a value to a specified data type.
Precedence Numbers – indicate the order in which the computer performs an operation (such as an arithmetic operation) in an expression.
Operators-mathematical symbols used in calculations, +-*/.
Scope- indicates where a variable can be used in the application’s code.
Lifetime - indicates how long a variable remains in the computer’s internal memory.
Procedure scope - the scope of a procedure-level variable.
Comments – used to document a program internally; created using the apostrophe.
Module scope- refers to the scope of a model-level variable, which can be used by all of the procedures in the current form.
Block scope - the scope of block-level variables, which can be used only within the statement block in which they are declared.
Static variable – a procedure-level variable that retains its value when the procedure ends.
Option Explicit – Disables implicit declaration of variables.
Option strict- strings will not be implicity converted to numbers, and vice versa, narrower data types will be promoted to wider data types, wider data types will not be demoted to narrower.
Pseudocode - uses phrases to describe the steps a procedure needs to take to accomplish its goal.
Empty String – a set quotations marks with nothing between them; also called a zero-length string.
Focus method- used to move the focus to a control while an application is running.
Format specifier - determines the special characters that will appear in a formatted number.
Questions
1. How do you name a variable and provide one example?
You can name it in a way that it doesn’t conflict with other commands. Ex: Purple Shoes.
2. How do you declare a variable and provide one example?
You can declare a variable by using the DIM command. Ex: Dim Purple Shoes As Integer.
3. What is the difference between DIM and Const?
Dim is a variable that can be changed, while Const is a variable that is only named once and it stays the same. Ex: Const TaxtRate As Decimal = 0.15D
4. How do you include a mathematical expression in assignment statements?
You use variables. Ex: totalSkate= Purple Shoes + Red Shoes.
5.How do you clear the text property when application is running?
You use the clear function. Ex: blueTextBox.Clear()
6. How do you format a number for output as a string?
You use the convert.Tostring function. EX: totalBoardsLabel.Text = Convert.ToString(total Shoes).
