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Lab 3.1 Formatted Output Hello World!

Write a program the outputs 'Hello World!'

Lab 3.2 Formatted output: No parking sign.

Write a program that prints a formatted "No parking" sign. Note the first line has two leading spaces.
NO PARKING
1:00 - 5:00 a.m.

Lab 3.3 House real estate summary

Sites like Zillow get input about house prices from a database and provide nice summaries for readers. Write a program with two inputs, current price and last month's price (both integers). Then, output a summary listing the price, the change since last month, and the estimated monthly mortgage computed as (currentPrice * 0.045) / 12.

Ex: If the input is 200000 210000, the output is:

This house is $200000. The change is $-10000 since last month.
The estimated monthly mortgage is $750.0.
Note: Getting the precise spacing, punctuation, and newlines exactly right is a key point of this assignment. Such precision is an important part of programming.

Lab 3.4 Caffeine levels

A half-life is the amount of time it takes for a substance or entity to fall to half its original value. Caffeine has a half-life of about 6 hours in humans. Given caffeine amount (in mg) as input, output the caffeine level after 6, 12, and 18 hours.

Ex: If the input is 100, the output is:

After 6 hours: 50.0 mg
After 12 hours: 25.0 mg
After 18 hours: 12.5 mg
Note: A cup of coffee has about 100 mg. A soda has about 40 mg. An "energy" drink (a misnomer) has between 100 mg and 200 mg.

Lab 3.5 Divide by x.

Write a program using integers userNum and x as input, and output userNum divided by x four times.

Ex: If the input is 2000 2, the output is:

1000 500 250 125
Note: In Coral, integer division discards fractions. Ex: 6 / 4 is 1 (the 0.5 is discarded).

Lab 3.6 Driving costs.

Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both floats) as input, and output the gas cost for 10 miles, 50 miles, and 400 miles.

Ex: If the input is 20.0 3.1599, the output is:

1.57995 7.89975 63.198
Note: Small expression differences can yield small floating-point output differences due to computer rounding. Ex: (a + b)/3.0 is the same as a/3.0 + b/3.0 but output may differ slightly. Because our system tests programs by comparing output, please obey the following when writing your expression for this problem. First use the dollars/gallon and miles/gallon values to calculate the dollars/mile. Then use the dollars/mile value to determine the cost per 10, 50, and 400 miles.

Note: Real per-mile cost would also include maintenance and depreciation.

Lab 3.7 Simple statistics.

Part 1
Given 3 integers, output their average and their product, using integer arithmetic.

Ex: If the input is 10 20 5, the output is:

11 1000
Note: Integer division discards the fraction. Hence the average of 10 20 5 is output as 11, not 11.666666666666666.

Submit the above for grading. Your program will fail the test cases (which is expected), until you complete part 2 below but check that you are getting the correct average and product using integer division.

Part 2
Also output the average and product, using floating-point arithmetic.

Ex: If the input is 10 20 5, the output is:

11 1000
11.666666666666666 1000.0

Lab 3.8 Using math functions

Given three floating-point numbers x, y, and z, output x to the power of y, x to the power of (y to the power of z), the absolute value of x, and the square root of (xy to the power of z).

Ex: If the input is 5.0 6.5 3.2, the output is:

34938.56214843421 1.2995143401732918e+279 5.0 262.42993783925596
Hint: Coral has built-in math functions (discussed elsewhere) that may be used.

Function Behavior Example
SquareRoot(x) Square root of x SquareRoot(9.0) evaluates to 3.0.
RaiseToPower(x, y) Raise x to power y: RaiseToPower(6.0, 2.0) evaluates to 36.0.
AbsoluteValue(x) Absolute value of x AbsoluteValue(-99.5) evaluates to 99.5.

IT 140 Higher/Lower Game Pseudocode Project One

Higher/Lower Game Description
Your friend Maria has come to you and said that she has been playing the higher/lower game with her three-year-old daughter Bella. Maria tells Bella that she is thinking of a number between 1 and 10, and then Bella tries to guess the number. When Bella guesses a number, Maria tells her whether the number she is thinking of is higher or lower or if Bella guessed it. The game continues until Bella guesses the right number. As much as Maria likes playing the game with Bella, Bella is very excited to play the game all the time. Maria thought it would be great if you could create a program that allows Bella to play the game as much as she wants.

For this assignment, you will be designing pseudocode for a higher/lower game program. The higher/lower game program uses similar constructs to the game you will design and develop in Projects one and Two.

1) Review the Higher/Lower Game Sample Output for more detailed examples of this game. As you read, consider the following questions:
What are the different steps needed in this program? How can you break them down in a way that a computer can understand?
What information would you need from the user at each point (inputs)? What information would you output to the user at each point?
When might it be a good idea to use "IF" and "IF ELSE" statements?
When might it be a good idea to use loops?

2) Create a pseudocode that logically outlines each step of the game program so that it meets the following functionality:
Prompts the user to input the lower bound and upper bound. Include input validation to ensure that the lower bound is less than the upper bound.
Generates a random number between the lower and upper bounds
Prompts the user to input a guess between the lower and upper bounds. Include input validation to ensure that the user only enters values between the lower and upper bound.
Prints an output statement based on the guessed number. Be sure to account for each of the following situations through the use of decision branching:
What should the computer output if the user guesses a number that is too low?
What should the computer output if the user guesses a number that is too high?
What should the computer output if the user guesses the right number?
Loops so that the game continues prompting the user for a new number until the user guesses the correct number.

OPTIONAL: If you would like to practice turning your designs into code, check out the optional 9.1 LAB: Higher/Lower Game in zyBooks. This step is optional but will give you additional practice turning designs into code, which will support your work in moving from Project One to Project Two.

ITSD424 Unit 4 Famous Favorite Subs

Continuing from the last assignment..
Assignment Details
Update the GUI application you have developed so far by adding a Java application to store the order just made by the customer in a file and present a file confirmation message using files and streams. You may accomplish this by outputting the sub order information to a file. Finally, you will read this file to display the order confirmation information.
• Output user-entered data to a destination file using the file class.
• Input data from a source file using the file class.
• Use FileWriter class and PrintWriter class to output an order confirmation.

Order Information
Beverage: xxxx
Sub bread: bbbbbbb
Sub type: ttttttttttttt
Sub size: ssssssss
Customer Information
Name: fffffff lllllll
Address: aaaaaaaaaa
City: ccccc
State: ss
Zip: zzzzz
Phone: nnn-nnn-nnnn
Input File: SubOrder.txt

ITSD424 Unit 3 Famous Favorite Subs

Continuing from the last assignment.
Assignment Details

Part 1
Modify your Java application so that it is an easy-to-use GUI application where all of the interaction is performed on one screen. You will now take the individual components and translate them to a single interactive GUI interface using the following GUI components, container, the event listeners, and event subclasses to enhance your application as a more GUI-appropriate interface:
• GUI components
• Container
• Event listeners
• Event subclasses (at least 3–4 utilized)
o ActionEvent
o ItemEvent
o FocusEvent
o KeyEvent
o MouseEvent
o WindowEvent
• ActionPerformed Method

Part 2
For this assignment, you are being asked to make sure you are exception handling by verifying that all of the customer-entered information is valid before the order is submitted to ensure order accuracy.
The customer information that the customer must now enter that should be validated includes the following:
• Entered username (must fill in a name)
• Entered at least one sub to order
• Selected all three attributes for sub (such as bread type, sub type, and sub size)
• Entered delivery address that includes street, city, state, and zip code
• Entered telephone number xxx-xxx-xxxx
In this assignment, you are adding in error handling to make sure the customer is filling in all of the required information.
To accomplish this task, you will be utilizing the following Java classes:
• Methods in the character class and StringBuilder class to validate and manipulate characters in a string
• Try.. Catch for the exception handling of all input fields

ITSD424 Unit 2 Famous Favorite Subs

Continuing from the last assignment.
Use vector, wrapper classes, conversion, and collection data structures by writing and implementing Java code within your application that demonstrates each of these concepts.
Hint: These may be utilized in areas of storing items in the customer order so that you can allow the customer to order more than one sub or beverage.
Refer to the sample prototype for the various item lists you will use. Feel free to add more choices to each of these lists.

ITSD424 Unit 1 Famous Favorite Subs

We are developing this application
1. User will choose from menu item
2. User will review ordered items
3. Each item will have a unit price
4. Order details will show unit price plus total price
5. Use will Press order button to place order

For this Unit
Assignment Description
At this point, you are ready to start developing Java code to ask questions on customer information and the sub sandwich that customers want to order. You are only concerned with the functionality to request and provide feedback on what the customer entered.
Your main focus is on defining your classes and abstract classes and utilizing the concept of inheritance and polymorphism for the final sub the customer orders. You will first prompt for the customer name and delivery address, like in this sample that prompts for the customer name:

Then, you will prompt for the beverage, sub bread, sub type, and sub size.
You should present a message echoing back all of the information that the customer entered, similar to the following example presenting the customer’s name with a message:

Make sure you prompt for the four attributes (beverage, bread, type, and size) that you will need to request from the customer to define for the final sub and beverage selection. Also, be sure to comment all of your code to demonstrate that you understand what the code is doing.

CIS355A Week 6 Lab - Database Connectivity Student Management System

OBJECTIVES
• Programmatic access to a MySQL database to add and display records

PROBLEM: Student Management System
A teacher needs the ability to store and retrieve student data. This includes
• student name;
• three test scores;
• average; and
• letter grade.

FUNCTIONAL REQUIREMENTS
You can code the GUI by hand or use NetBeans GUI builder interface.
Create a GUI which allows for input and display of student data.
It should include buttons to save a record, display all records.

Create a database and table to store student name and three test scores. (Note that average and grade are calculated by app.)

Student class
Create a Student class to manage the student data. It should have private instance variables of
• student name; and
• three test scores.
The class must have the following methods.
• A default and parameterized constructor
• Sets/gets for all instance variables
• A get method to calculate and return the average
• A get method to calculate and return the letter grade
• toString to display the name of the student

StudentDB class
Create a StudentDB class that is used to create a connection and interface with the database.

This class should have two methods.
• getAll - reads data from database, returns data in an arraylist of student objects
• add - writes a record to the database

GUI class
Insert button will take the info from the GUI (student name and three test scores) and insert a record into the table.  Input should be cleared from the textboxes.
Display button will read the data from the database and creates a report in Console window, sample format below.
Name Test1 Test2 Test3 Avg Grade
Bruce Wayne  90  95  98  94.3  A
Clark Kent  65  70  90  75.0  C

RUBRIC
Student class
• Has all required functionality 10
GUI class
• Student record can be saved
• All student data can be displayed 15
StudentDB class
• add method inserts a record into db.
• get method reads all records and returns in arraylist. 15
Code style 5
Lab Report 10
TOTAL 55

CODE STYLE REQUIREMENTS
• Include meaningful comments throughout your code.
• Use meaningful names for variables.
• Code must be properly indented.
• Include a comment header at beginning of each file, example below.
/****************************************************
Program Name: ProgramName.java
Programmer's Name: Student Name
Program Description: Describe here what this program will do
***********************************************************/

DELIVERABLES
Submit as a SINGLE zip folder
• all java files; and
• the Lab report.

Follow assignment specification regarding class/method names.
Note that your Java file name must match class name (DO NOT rename).

CIS355A Week 5 Lab - File Processing Stocks4U

OBJECTIVES
• Add persistent data storage to your Week 4 Lab using text file input/output.

PROBLEM: Stocks4U Portfolio Management System
The portfolio management system you developed for Stocks4U needs the ability to save and restore a user’s data from a text file.

FUNCTIONAL REQUIREMENTS
You can code the GUI by hand or use NetBeans GUI Builder Interface.
You will enhance Week 4 GUI to include
• a File menu with menu items: open, save, exit; and
• a label to display total portfolio value.

Stock class
• Modify the toString of Stock class to display as
"Company: qty shares" (i.e., "Apple: 10 shares")

StockIO class
Create a StockIO class that is used to read from and write to a text file using an ArrayList. Make sure to use a delimiter between the fields; it does not have to be the # character. Example format of the file is:

Apple#100#55.0#80.0
Intel#50#75.0#70.0

This class should have two methods.
• getData - reads data from file, returns data in array list of stock objects
• saveData - writes data from an array list to the file in proper format
The file name will be an instance variable that you can set with a parameterized constructor, or with a separate method.

GUI class
Note that you will need to add an ArrayList to your GUI class to manage the data to/from the file. It will act as a parallel array to your DefaultListModel. Any time you add a stock, you must add it in BOTH places. Any time you remove a stock, you must remove it in BOTH places.

File - open should prompt for file name using JOptionPane, read the file and populate the JList.
File - save should prompt for file name to save data from JList to.
File - exit should exit the program.

The total value of the portfolio should be displayed at all times and updated anytime a stock is added or removed.

RUBRIC
Stock class toString modified 5
GUI class
• Menu is added.
• Label is added for total portfolio value.
• Open menu item reads data from a file and displays in list box.
• Save menu item writes data to a text file in proper format.
• Total value is updated whenever any changes are made to stocks (add, remove, open a new file). 15
StockIO class
• getData method reads from file to array list
• saveData method writes from array list to file 20
Code style 5
Lab Report 10
TOTAL 55

CODE STYLE REQUIREMENTS
• Include meaningful comments throughout your code.
• Use meaningful names for variables.
• Code must be properly indented.
• Include a comment header at beginning of each file, example below.
/****************************************************
Program Name: ProgramName.java
Programmer's Name: Student Name
Program Description: Describe here what this program will do
***********************************************************/

DELIVERABLES
Submit as a SINGLE zip folder
• all Java files; and
• the Lab report.

Follow assignment specification regarding class/method names.
Note that your Java file name must match class name (DO NOT rename).

CIS355A Week 4 Lab - Processing Arrays of Objects Stocks4U

OBJECTIVES
• Create a GUI that uses JList and JTabbedPanes.
• Process multiple objects in an ArrayList.
• Code event handlers for multiple events.

PROBLEM: Stocks4U Portfolio Management System
Stocks4U needs to develop an app for you to manage your stock purchases. You should be able to store a list of stock purchases, view the individual stocks, add and remove stocks.

FUNCTIONAL REQUIREMENTS
You can code the GUI by hand or use NetBeans GUI builder interface.

The GUI should have two tabs using JTabbedPane.
• One tab ("Show stocks") should have
 o a JList to display all the stock purchases;
 o a text field or label to display information about a particular stock; and
 o a JButton to remove a stock.
• One tab ("Add stock") should have textboxes, labels, and a button to input a stock.

Create a Stock class to manage the stock activity. It should have private instance variables of
• company name;
• number of shares;
• purchase price; and
• current price.
Create a default and parameterized constructor.
Create sets/gets for all instance variables.
Create a get method to calculate and return the profit or loss. This would be calculated as
 Number of shares * (current price – purchase price).
Create toString to display the name of the stock.

As you add stocks, they are displayed in the JList.
If you select an element in the JList, the gain or loss is displayed in the label or text field.
If you select an element in the JList and click Remove, the stock is removed from the list.

GRADING RUBRIC
Stock class
• Has all required functionality 15
GUI class
• Use the Stock class to process data.
• As you add stocks, they are displayed in the JList.
• If you select an element in the JList, the gain or loss is displayed in the label or text field.
• If you select an element in the JList and click Remove, the stock is removed from the list.
• Use error messages for any invalid/missing user input using JOptionPane. 25
Code style 5
Lab Report 10
TOTAL 55

CODE STYLE REQUIREMENTS
• Include meaningful comments throughout your code.
• Use meaningful names for variables.
• Code must be properly indented.
• Include a comment header at beginning of each file, example below.
/****************************************************
Program Name: ProgramName.java
Programmer's Name: Student Name
Program Description: Describe here what this program will do
***********************************************************/

DELIVERABLES
Submit as a SINGLE zip folder
• All java files
• Lab report

Follow assignment specification regarding class/method names.
Note that your java filename must match class name (DO NOT rename).