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Company A
An electronic retail chain wishes to minimize its ordering costs for a particularly popular model of laptop computer. This retail chain has a line of credit to finance its inventory and the current interest rate is 1.5%. The chain estimates it can sell 30,000 units per year and it pays $575 per unit. It costs $48 to place each order. How many units should it order each time? You should round your answer up to the nearest laptop unit. You must show your work.
Company B
A manufacturer of laptop computers operates a plant with an annual capacity of 6,630,000 laptop units. One of its models is expected to sell 390,000 units in the coming year. How large should each product lot be if it costs $575 to change production from one model to another. Assume that the manufacturer values each laptop unit at $280 and it has a holding interest rate of 2%. You should round your answer up to the nearest laptop unit. You must show your work.

Problem: Crew Recruitment

Before your friend can set sail, they will need a crew to sail with. Your friend has created a special series of questions to determine an applicant’s suitability for sailing the ocean and looking for treasure in the Caribbean. Based on their answers the program should print whether or not they will be allowed to join the crew.

They will be asked two questions:

1. Do you like digging for treasure?

2. Are you able to swim?

If the user indicates yes to the second question, the program should ask them how far they can swim in meters.

Based on these responses, you will need to determine if they will be a good crew member for the ship. If the user does not enjoy digging for treasure, they will not make a good pirate. If the user cannot swim at least 100 meters, they should not attempt to sail the ocean. Otherwise, you can allow them to join your crew!

Input Specification

1. The answer to each of the two questions will be either ‘Y’ to indicate yes or ‘N’ to indicate no.

2. The answer to the number of swimming meters will be an integer >= 0.

Output Specification

The output should be a single line that tells the user whether or not they will be allowed to join the crew.

You may join the pirate crew! Arrr!

Or:

You may not join the crew.

Output Sample

Below are some sample outputs of running the program. Note that these samples are NOT a comprehensive test. You should test your program with different data than is shown here based on the specifications given above. In the sample run below, for clarity and ease of reading, the user input is given in italics while the program output is in bold. (Note: When you actually run your program no bold or italics should appear at all. These are simply used in this description for clarity’s sake.)

Sample Run #1

Do you like digging for treasure?

Y

Are you able to swim?

Y

How many meters are you able to swim?

150

You may join the pirate crew! Arrr!

A trucking company has an application to track data from their trucks regarding miles driven and fuel used each month. This information is input from a GUI and stored in a file named “trucks.txt”. The GUI has the following components.

Component Type Purpose
txtID JTextField Input for TruckID
txtMiles JTextField Input for miles driven
txtFuel JTextField Input for fuel used
btnSave JButton Click to save data to the file

The data should be saved to the file with delimiters between the fields, as shown below.
TruckID#miles#fuel

The class method saveFile() is called by the action listener to do the work. Write the code for this method. Make sure to validate that all data is present.

TicketsRUs needs an application to calculate ticket prices. There are three ticket prices:

• Orchestra $90 each
• Mezzanine $75 each
• Balcony $50 each

There is also a 20% discount on matinee performances .

Your application has the GUI shown below.

With the following named components:

Component Type Purpose
txtNum JTextField Input for number of tickets
chkMatinee JCheckBox Check if matinee performance
radOrchestra JRadioButton Check for orchestra tickets
radMezzanine JRadioButton Check for mezzanine tickets
radBalcony JRadioButton Check for balcony tickets
btnCalc JButton Click to calculate price
txtEach JTextField Displays price of each ticket
txtTotal JTextField Displays total price

Clicking the CalcPrice button should determine the price per ticket and the total price based on the user’s input and display in txtEach and txtTotal. You should make sure the number of tickets is entered and a ticket type is selected, otherwise give an error message.

The action listener for btnCalc is set up as follows.
btnCalc.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
calcPrice(); //write the code for this method
}
});

Write the calcPrice method that is called by the action listener. This class method has access to all of the GUI components. You DO NOT HAVE TO CODE THE GUI. ONLY write the code for this method which does all the work. The header for the method is:

private void calcPrice()

Your client needs an application to that can display either the heads or tails of a coin. You need to create an application with a Show Heads button and a Show Tails button. When the user clicks the Show Heads button, an image of the heads side of a coin should appear. When the user clicks the Show Tails button, an image of the tails side of a coin should appear. The following figure shows how the application’s form should appear after either the Show Heads button or Show Tails buttons have been clicked.
Think carefully about your implementation. In particular how the form will look when the application firsts starts. Should any coins be showing?. For this question a GUI has been provided by the client. Make sure you implementation matches the clients requestThe client has supplied the images to be used. To achieve full marks, your solution must:Meets the client requirements specified above;
Work correctly;
Contain appropriate comments;
Use appropriate indentation; and
Follow conventions for naming variables and controls

Employees at a certain company get a yearly bonus based on years of service. The bonus is a percentage of their annual salary based on the table below.
Years of Service Bonus Percentage
< 5 3% 5 – 14 7% 15+ 12% Create a class called Employee that can be used for this. It should have attributes of • Name; • Years; and • Salary. Create the following methods. • Default constructor to initialize all attributes • Get/Set for name, years, salary • Get to calculate and return bonus rate • Get to calculate and return bonus amount This class will be used with the Bonus Calculator GUI shown below. With the following named components: Component Type Purpose txtName JTextField Input for name txtYears JTextField Input for years txtSalary JTextField Input for salary btnCalc JButton Click to calculate bonus txtBonusPercent JTextField Displays bonus percentage txtBonusAmount JTextField Displays bonus amount You DO NOT have to code the GUI. The action listener for btnCalc is set up as follows. btnCalc.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { calcBonus(); //write the code for this method } });