1z0-809 Exam Question 81

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?
  • 1z0-809 Exam Question 82

    Given the code fragment:
    List<String> nL = Arrays.asList("Jim", "John", "Jeff");
    Function<String, String> funVal = s -> "Hello : ".contact(s);
    nL.Stream()
    .map(funVal)
    .peek(System.out::print);
    What is the result?
    Hello : Jim Hello : John Hello : Jeff
  • 1z0-809 Exam Question 83

    Given the code fragments:

    and

    Which two modifications enable to sort the elements of the emps list? (Choose two.)
  • 1z0-809 Exam Question 84

    Given:
    public class Customer {
    private String fName;
    private String lName;
    private static int count;
    public customer (String first, String last) {fName = first, lName = last;
    + +count;}
    static { count = 0; }
    public static int getCount() {return count; }
    }
    public class App {
    public static void main (String [] args) {
    Customer c1 = new Customer("Larry", "Smith");
    Customer c2 = new Customer("Pedro", "Gonzales");
    Customer c3 = new Customer("Penny", "Jones");
    Customer c4 = new Customer("Lars", "Svenson");
    c4 = null;
    c3 = c2;
    System.out.println (Customer.getCount());
    }
    }
    What is the result?
  • 1z0-809 Exam Question 85

    Given:

    What is the result?