EECS2030 Test 1

Version A

GETTING STARTED

1. Save this eclipse project file.
2. Start eclipse; use the workspace suggested by eclipse.
3. Import the test project by doing the following:
   1. Under the File menu choose Import...
   2. Under General choose Existing Projects into Workspace and press Next
   3. Click the Select archive file radio button, and click the Browse... button.
   4. Navigate to your home directory (the file chooser is probably in the workspace directory).
   5. Select the file test1A.zip and click OK
   6. Click Finish.
4. All of the files you need for this test should now appear in eclipse.

Java Standard Library Documentation

Java API

To submit your work

1. Open a terminal. You will use this terminal to submit your work.
2. Copy and paste the command cd eclipse-workspace/Test1A/src into the terminal and press enter.
3. Type the following command and press enter to submit your work:

submit 2030 test1A PIN.java

Question

Implement the class described by this API. You do not have to include javadoc comments.

1. Start by reading the API to understand what the class does.
2. Decide how many fields you require, what the fields represent, and what their types are. Add them to your class.
3. Implement the method toString first. The unit tester that is provided relies on this method.
4. Implement the constructors.
5. Implement the methods.
6. Use the unit tester to help you, but be aware that the tests cover only the simplest of cases. It is possible to receive a failing grade even if your solution passes all of the given tests.
7. You may modify the unit tester as you see fit.

Hints

• To check if a character is a digit use the method Character.isDigit. Documentation can be found here.
• To convert a string to an integer use the method Integer.valueOf. Documentation can be found here.
• You should probably use a string to store the digits of the PIN. A solution using only primitive fields is possible but not recommended. Documentation for the String class can be found here.
• You can loop over the characters of a string like so:

  // s is some string
  
  for (int i = 0; i < s.length(); i++) {
      char c = s.charAt(i);
      // do something with c here
  }