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Given:

What is the result?

A.

–catch--finally--dostuff-

B.

–catch-

C.

–finally--catch-

D.

–finally-dostuff--catch-

Given:

class Bird {

public void fly () { System.out.print(“Can fly”); }

}

class Penguin extends Bird {

public void fly () { System.out.print(“Cannot fly”); }

}

and the code fragment:

class Birdie {

public static void main (String [ ] args) {

fly( ( ) -> new Bird ( ));

fly (Penguin : : new);

}

/* line n1 */

}

Which code fragment, when inserted at line n1, enables the Birdie class to compile?

A.

static void fly (Consumer bird) {bird :: fly ();}

B.

static void fly (Consumer bird) {bird.accept( ) fly ();}

C.

static void fly (Supplier bird) {bird.get( ) fly ();}

D.

static void fly (Supplier bird) {LOST

Given the code fragment:

What is the result?

A.

5 : 3 : 6

B.

6 : 5 : 6

C.

3 : 3 : 4

D.

4 : 4 : 4

Given the code fragment:

What is the result?

A.

[X][X, X][X, X, X][X, X, X, X]

B.

[X, X]

C.

[X][X, X][X, X, X]

D.

[X, X][X, X, X, X]

Given the code fragments:

class TechName {

String techName;

TechName (String techName) {

this.techName=techName;

}

}

and

List tech = Arrays.asList (

new TechName(“Java-“),

new TechName(“Oracle DB-“),

new TechName(“J2EE-“)

);

Stream stre = tech.stream();

//line n1

Which should be inserted at line n1 to print Java-Oracle DB-J2EE-?

A.

stre.forEach(System.out::print);

B.

stre.map(a-> a.techName).forEach(System.out::print);

C.

stre.map(a-> a).forEachOrdered(System.out::print);

D.

stre.forEachOrdered(System.out::print);

Given the code fragment:

public class Foo {

public static void main (String [ ] args) {

Map unsortMap = new HashMap< > ( );

unsortMap.put (10, “z”);

unsortMap.put (5, “b”);

unsortMap.put (1, “d”);

unsortMap.put (7, “e”);

unsortMap.put (50, “j”);

Map treeMap = new TreeMap (new

Comparator ( ) {

@Override public int compare (Integer o1, Integer o2) {return o2.compareTo

(o1); } } );

treeMap.putAll (unsortMap);

for (Map.Entry entry : treeMap.entrySet () ) {

System.out.print (entry.getValue () + “ “);

}

}

}

What is the result?

A.

A compilation error occurs.

B.

d b e z j

C.

j z e b d

D.

z b d e j

Given:

interface Rideable {Car getCar (String name); }

class Car {

private String name;

public Car (String name) {

this.name = name;

}

}

Which code fragment creates an instance of Car?

A.

Car auto = Car (“MyCar”): : new;

B.

Car auto = Car : : new;Car vehicle = auto : : getCar(“MyCar”);

C.

Rideable rider = Car : : new;Car vehicle = rider.getCar(“MyCar”);

D.

Car vehicle = Rideable : : new : : getCar(“MyCar”);

Given the code fragment:

List list1 = Arrays.asList(10, 20);

List list2 = Arrays.asList(15, 30);

//line n1

Which code fragment, when inserted at line n1, prints 10 20 15 30?

A.

Stream.of(list1, list2).flatMap(list -> list.stream()).forEach(s -> System.out.print(s + “ “));

B.

Stream.of(list1, list2).flatMap(list -> list.intStream()).forEach(s -> System.out.print(s + “ “));

C.

list1.stream().flatMap(list2.stream().flatMap(e1 -> e1.stream()).forEach(s -> System.out.println(s + “ “));

D.

Stream.of(list1, list2).flatMapToInt(list -> list.stream()).forEach(s -> System.out.print(s + “ “));

Given the code fragment:

Map books = new TreeMap<>();

books.put (1007, “A”);

books.put (1002, “C”);

books.put (1001, “B”);

books.put (1003, “B”);

System.out.println (books);

What is the result?

A.

{1007 = A, 1002 = C, 1001 = B, 1003 = B}

B.

{1001 = B, 1002 = C, 1003 = B, 1007 = A}

C.

{1002 = C, 1003 = B, 1007 = A}

D.

{1007 = A, 1001 = B, 1003 = B, 1002 = C}

Given the code fragments:

class Employee {

Optional

address;

Employee (Optional

address) {

this.address = address;

}

public Optional

getAddress() { return address; }

}

class Address {

String city = “New York”;

public String getCity { return city: }

public String toString() {

return city;

}

}

and

Address address = null;

Optional

addrs1 = Optional.ofNullable (address);

Employee e1 = new Employee (addrs1);

String eAddress = (addrs1.isPresent()) ? addrs1.get().getCity() : “City Not

available”;

What is the result?

A.

New York

B.

City Not available

C.

null

D.

A NoSuchElementException is thrown at run time.