Lab 6 - XML and Trees

  1. Open your homework 5 in IntelliJ (or other IDE, so that it can be changed), be sure that unit testing works.
  2. If you do not have the latest version of your work on bitbucket (or github), create a commit and push it. If necessary, refer to the materials of the first lab. The test file NodeTest.java must also be included in the version control.
  3. The teacher will assign you a partner for this lab.
  4. Show that all the tests pass on your computer (if necessary, check the materials of the first lab), that the work has been submitted by the deadline and the teachers comments (must contain "ok"). The partner does the same.
  5. Divide the roles: developer and tester. One partner ("developer") is responsible for the file Node.java, the other partner ("tester") is responsible for the file NodeTest.java.
  6. Development: Add a new method toXML to convert a given tree into a pseudo-XML form (similar to the leftParentheticRepresentation method), which applies to the tree's root vertex this and outputs a string describing the tree's structure with the opening tags <L1>, <L2> ... (the number indicates the depth of the vertex), the vertex names and with the corresponding closing tags </L1>, </L2>, ...  as shown in the following example. If the right parenthetic representation is:
      "((C)B,(E,F)D,G)A"
    then the result must be:
    <L1> A
        <L2> B
            <L3> C </L3>
        </L2>
        <L2> D
            <L3> E </L3>
            <L3> F </L3>
        </L2>
        <L2> G </L2>
    </L1>
    Implement the method toXML and include 3 - 4 examples to the main method. Print both the left parenthetic representation and the pseudo-XML of the example trees.
  7. Testing: Write about 5 test cases for toXML that cover all the examples and add them to existing tests (use the junit4 framework, see the test file NodeTest.java for an example).
  8. Share your result with the partner and test the new solution in both computers.
  9. Make a new commit  "Developer: name, Tester: name" and upload it to bitbucket (or github), the partner will do the same with their code. Do this after the testing part is finished.
  10. Show the commit, the tests and running examples to the teacher. You can also run tests from the command line if there is a problem with the IDE.
  11. The teacher will discuss and ask questions about your work.
  12. The teacher inputs grades to SIS.
Jaanus Pöial