Oracle 1z0-809 - Java SE 8 Programmer II

Given the code fragment:

Assume that dbURL, userName, and password are valid.

Which code fragment can be inserted at line n1 to enable the code to print Connection Established?

Given:

public class Canvas implements Drawable {

public void draw () { }

}

public abstract class Board extends Canvas { }

public class Paper extends Canvas {

protected void draw (int color) { }

}

public class Frame extends Canvas implements Drawable {

public void resize () { }

}

public interface Drawable {

public abstract void draw ();

}

Which statement is true?

Given the code fragment:

List nL = Arrays.asList(“Jim”, “John”, “Jeff”);

Function funVal = s -> “Hello : “.contact(s);

nL.Stream()

.map(funVal)

.peek(System.out::print);

What is the result?

Given:

public class Test {

private T t;

public T get () {

return t;

}

public void set (T t) {

this.t = t;

}

public static void main (String args [ ] ) {

Test type = new Test<>();

Test type 1 = new Test ();//line n1

type.set(“Java”);

type1.set(100);//line n2

System.out.print(type.get() + “ “ + type1.get());

}

}

What is the result?

Given the code fragments:

4. void doStuff() throws ArithmeticException, NumberFormatException, Exception {

5. if (Math.random() >-1 throw new Exception (“Try again”);

6. }

and

24. try {

25. doStuff ( ):

26. } catch (ArithmeticException | NumberFormatException | Exception e) {

27. System.out.println (e.getMessage()); }

28. catch (Exception e) {

29. System.out.println (e.getMessage()); }

30. }

Which modification enables the code to print Try again?

Which statement is true about java.util.stream.Stream?

Given the code fragment:

Path file = Paths.get (“courses.txt”);

// line n1

Assume the courses.txt is accessible.

Which code fragment can be inserted at line n1 to enable the code to print the content of the courses.txt file?

Given:

class Vehicle {

int vno;

String name;

public Vehicle (int vno, String name) {

this.vno = vno,;

this.name = name;

}

public String toString () {

return vno + “:” + name;

}

}

and this code fragment:

Set vehicles = new TreeSet <> ();

vehicles.add(new Vehicle (10123, “Ford”));

vehicles.add(new Vehicle (10124, “BMW”));

System.out.println(vehicles);

What is the result?

Given the code fragment:

Path path1 = Paths.get(“/app/./sys/”);

Path res1 = path1.resolve(“log”);

Path path2 = Paths.get(“/server/exe/”);

Path res1 = path2.resolve(“/readme/”);

System.out.println(res1);

System.out.println(res2);

What is the result?

Given the code fragment:

What is the result?