Question 61

Given:

What is the result?
  • Question 62

    Given the code fragment:
    public void recDelete (String dirName) throws IOException {
    File [ ] listOfFiles = new File (dirName) .listFiles();
    if (listOfFiles ! = null && listOfFiles.length >0) {
    for (File aFile : listOfFiles) {
    if (aFile.isDirectory ()) {
    recDelete (aFile.getAbsolutePath ());
    } else {
    if (aFile.getName ().endsWith (".class"))
    aFile.delete ();
    }
    }
    }
    }
    Assume that Projects contains subdirectories that contain .class files
    and is passed as an argument to the recDelete () method when it is
    invoked.
    What is the result?
  • Question 63

    Given the content of Operator.java, EngineOperator.java,and Engine.javafiles:

    and the code fragment:

    What is the result?
  • Question 64

    Given: What is the result?
  • Question 65

    Given the code fragment:

    What is the result?