Unit 2 Homework and Research
Marsha Moore
Intro to Programming

Short Answer Questions 1-4 1. Learn what the customer wants. Determine the steps that must be taken to perform the task, and create an algorithm or step-by-step directions to solve the problem. 2. A pseudocode is a fake code used as a model for programs. 3. Receive input; some process is performed on input; output is produced. 4. “User friendly”: programs that are easy to use.
Algorithm Workbench Review Questions 1. Declare height
Display “Enter your height”
Input height 2. Declare color
Display “Enter your favorite color”
Input color
Program Exercise 1
Console.Write (“Enter your name: “) name = Console.ReadLine ()
Console.Write (“Enter your address, city, state, and zip: “)
AddressCityStateZip = Console.ReadLine ()
Console.Write (“Enter your telephone number: “)
TelephoneNum = Console.ReadLine ()
Console.Write (“Enter your college major: “)
Major = Console.ReadLine ()
Program Exercise 2
Dim Product As String = “NO VALUE”
Dim prodPrice As Double = 0
Dim Subtotal As Double = 0
Dim salesTax As Double = 0
Dim TotalPrice As Double = 0
Console.Write (“Enter product: “)
Product = Console.ReadLine ()
Console.Write (“Enter product price: “) prodPrice = Console.ReadLine ()
Subtotal = prodPrice + prodPrice + prodPrice + prodPrice + prodPrice salesTax = Subtotal * 0.06
TotalPrice = Subtotal + salesTax

Visual Basic (www.virtulalparkland.edu) * Unique within the scop * Less than 255 characters * Begin with a letter * No embedded spaces or many special characters; the underscore is a valid character. * Cannot be a reserved word. * Use upper and lowercase with purpose. Once a variable is declared, you do not have to worry about upper and lowercase. * Use names that are descriptive and mnemonic.
Python (www.w3source.com) * Must begin with a letter (a-z, A-B) or underscore. * Other characters can be letters, numbers, or underscore. * Case sensitive. * Can be any (reasonable) length. * Cannot be a reserved word.
Java (www.c4learn.com) * Case sensitive. * Can contain Unicode letters, Digits, and 2 special characters such as underscore and dollar sign. * Can be any length. * Use Alphabet at beginning ; underscore may be use but is not recommended. * Cannot be a reserved word. * No white space. * Length of variable unlimited.
Similarities
* All must begin with letters. * All have reserved words/keywords that cannot be used. * All are case sensitive.
Differences
Differences * Visual Basic has a limit on how many characters that can be used. * Java enables the programmer to use the underscore at the beginning. * Special characters may be used in Visual Basic.