Java Standard Test 15 Code 819

Welcome to your Standard Java Test - 15

Name

Phone

Question: Which of the following implementations of a max() method will correctly return the largest value?

Select 1 option(s)

None

Question: MOVE What is the result of compiling and running the following code ?

public class TestClass{
static int si = 10;
public static void main (String args[]){
new TestClass();
}
public TestClass(){
System.out.println(this);
}
public String toString(){
return "TestClass.si = "+this.si;
}
}

Select 1 option(s)

The class will not compile because you cannot override toString() method.

The class will not compile as si being static, this.si is not a valid statement.

It will print TestClass@nnnnnnnn, where nnnnnnnn is the hash code of the TestClass object referred to by 'this'.

It will print TestClass.si = 10.

None of the above.

None

Question: Consider the following program...

class Super { }
class Sub extends Super { }
public class TestClass{
public static void main(String[] args){
Super s1 = new Super(); //1
Sub s2 = new Sub(); //2
s1 = (Super) s2; //3
}
}

Which of the following statements are correct?

Select 1 option(s)

It will compile and run without any problems.

It will compile but WILL throw ClassCastException at runtime.

It will compile but MAY throw ClassCastException at runtime.

It will not compile.

None of the above.

None

Question: What will be the result of compiling and running the following code?

class Base{
public short getValue(){ return 1; } //1
}
class Base2 extends Base{
public byte getValue(){ return 2; } //2
}
public class TestClass{
public static void main(String[] args){
Base b = new Base2();
System.out.println(b.getValue()); //3
}
}

Select 1 option(s)

It will print 1.

It will print 2.

Compile time error at //1.

Compile time error at //2.

Compile time error at //3.

None

Question: Given the following code:

enum Title
{
MR("Mr. "), MRS("Mrs. "), MS("Ms. ");
private String title;
private Title(String s){
title = s;
}
public String format(String first, String last){
return title+" "+first+" "+last;
}
}

//INSERT CODE HERE

Identify valid code snippets ..

(Assume that Title is accessible wherever required.)

Select 4 option(s)

class TestClass{
void someMethod()
{
System.out.println(Title.format("Rob", "Miller"));
}
}

class TestClass{
void someMethod()
{
System.out.println(Title.MR.format("Rob", "Miller"));
}
}

class TestClass{
void someMethod()
{
System.out.println(MR.format("Rob", "Miller"));
}
}

enum Title2 extends Title
{
DR("Dr. ");
}

class TestClass{
void someMethod()
{
Title.DR dr = new Title.DR("Dr. ");
}
}

enum Title2
{
DR;
private Title t;
}

enum Title2
{
DR;
private Title t = Title.MR;
}

enum Title2
{
DR;
private Title t = Title.MR;
public String format(String s){ return t.format(s, s); };
}

Question: Which of the following options are guideline(s) to protect confidential information?

Select 3 option(s)

Confidential information should not be stored in the application.

Confidential and other information should be treated uniformly.

Access to confidential information should be limited.

Objects containing confidential information should be encapsulated properly.

Handle information transparently to improve diagnostics.

Clearly identify and label confidential information.

Question: Which of the following methods are available in java.io.Console?

Select 5 option(s)

readPassword

reader

writer

readLine

read

getPassword

format

Question: Consider the following program...

class ArrayTest{
public static void main(String[] args){
var ia[][] = { {1, 2}, null };
for (int i = 0; i < 2; i++)
for (int j = 0; j < 2; j++)
System.out.println(ia[i][j]);
}
}

Which of the following statements are true?

Select 1 option(s)

It will throw an ArrayIndexOutOfBoundsException at Runtime.

It will throw a NullPointerException at Runtime.

It will compile and run without throwing any exceptions.

It will compile and throw a NullPointerException at runtime if var ia[][] = { {1, 2}, null }; is replaced with var ia = new int[][]{ {1, 2}, null };.

It will compile and throw a NullPointerException at runtime if var ia[][] = { {1, 2}, null }; is replaced with var ia[][] = new int[][]{ {1, 2}, null };.

None

Question: Given:

String qr = "insert into USERINFO values( ?, ?, ?)";
try(PreparedStatement ps = c.prepareStatement(qr);)
{
ps.setObject(0, 1); //1
ps.setObject(1, "Ally A", JDBCType.VARCHAR); //2
ps.setObject(2, "101 main str"); //3
ps.executeUpdate(); //4
ps.setObject(1, "Bob B"); //5
ps.setNull(2, java.sql.Types.VARCHAR); //5
ps.executeUpdate(); //6
}

What will be the result?

Select 1 option(s)

Two rows with the following values will be inserted in the USERINFO table:
1, Ally A, 101 main str
null, Bob B, null

Two rows with the following values will be inserted in the USERINFO table:
1, Ally A, 101 main str
1, Bob B, 101 main str

An exception will be thrown at //1.

An exception will be thrown at //2.

An exception will be thrown at //3.

An exception will be thrown at //4.

An exception will be thrown at //5.

An exception will be thrown at //6.

None

10.

Question: What will the following code print when compiled and run?

interface Eatable{
int types = 10;
}
class Food implements Eatable {
public static int types = 20;
}
public class Fruit extends Food implements Eatable{ //LINE1

public static void main(String[] args) {
types = 30; //LINE 2
System.out.println(types); //LINE 3
}
}

Select 1 option(s)

Compilation failure at //LINE 1.

Compilation failure at //LINE 2.

Compilation failure at //LINE 3.

Compilation failure at //LINE 2 as well as at //LINE 3.

None

11.

Question: What will the following code print?

char[] a = { 'h', 'e', 'l', 'l'};
char[] b = { };

int x = Arrays.compare(a, b);
int y = Arrays.mismatch(a, b);
System.out.println(x+" "+y);

Select 1 option(s)

It will throw an IndexOutOfBoundsException at run time.

4 0

1 0

-4 -4

-4 4

None

12.

Question: What can be inserted at line 2 in the code snippet given below?

String[] names = {"Alex", "Bob", "Charlie" };
//Insert code here
System.out.println(list.get(0));

Select 2 option(s)

13.

Question: How can you initialize a StringBuilder to have a capacity of at least 100 characters?

Select 2 option(s)

StringBuilder sb = new StringBuilder(100);

StringBuilder sb = StringBuilder.getInstance(100);

StringBuilder sb = new StringBuilder();
sb.setCapacity(100);

StringBuilder sb = new StringBuilder();
sb.ensureCapacity(100);

14.

Question: What will happen on running the following program?

public class DatabaseWrapper
{
static String url = "jdbc://derby://localhost:1527//mydb";
static DatabaseWrapper getDatabase()
{
System.out.println("Getting DB");
return null;
}
public static void main(String[ ] args)
{
System.out.println( getDatabase().url );
}
}

Select 1 option(s)

It will print Getting DB and jdbc://derby://localhost:1527//mydb without throwing an exception.

It will throw a NullpointerException at Runtime.

It will print jdbc://derby://localhost:1527//mydb but will NOT print Getting DB.

It will print Getting DB and then throw a NullPointerException.

It will print nothing.

None

15.

Question: What will the following code print when compiled and run?

var numA = new Integer[]{1, 2};
var list1 = List.of(numA);
numA[0] = 2;
var list2 = List.copyOf(list1);
System.out.println(list1+" "+list2);

Select 1 option(s)

It will not compile.

[1, 2] [1, 2]

[2, 2] [1, 2]

[2, 2] [2, 2]

None

16.

Question: Given the following set of member declarations, which of the following is true?

int a; // (1)
static int a; // (2)
int f( ) { return a; } // (3)
static int f( ) { return a; } // (4)

Select 2 option(s)

Declarations (1) and (3) cannot occur in the same class definition.

Declarations (2) and (4) cannot occur in the same class definition.

Declarations (1) and (4) cannot occur in the same class definition.

Declarations (2) and (3) cannot occur in the same class definition.

Declarations (1) and (2) cannot occur in the same class definition.

17.

Question: Complete the following code by inserting declaration for stateCitiesMap:

//Insert line of code here

List cities = new ArrayList();
cities.add("New York");
cities.add("Albany");
stateCitiesMap.put("NY", cities);

Select 2 option(s)

18.

Question: Given:

Stream names = Stream.of("Sarah Adams", "Suzy Pinnell", "Paul Basgall");
Stream firstNames = //INSERT CODE HERE

Which of the following options will correctly assign a stream of just first names to firstNames?

Select 1 option(s)

names.map(e->e.split(" ")[0]);

names.reduce(e->e.split(" ")[0]);

names.filter(e->e.split(" ")[0]);

names.forEach(e->e.split(" ")[0]);

None

19.

Question: What will the following code fragment print when compiled and run?

Locale myloc = new Locale.Builder().setLanguage("hinglish").setRegion("IN").build(); //L1
ResourceBundle msgs = ResourceBundle.getBundle("mymsgs", myloc);

Enumeration en = msgs.getKeys();
while(en.hasMoreElements()){
String key = en.nextElement();
String val = msgs.getString(key);
System.out.println(key+"="+val);
}

Assume that only the following two properties files (contents of the file is shown below the name of the file) are accessible to the code.

1. mymsgs_hinglish_US.properties
okLabel=OK
cancelLabel=Cancel

2. mymsgs_hinglish_UK.properties
okLabel=YES
noLabel=NO

Select 1 option(s)

It will not compile due to line L1.

It will not print anything.

okLabel=OK
cancelLabel=Cancel

okLabel=YES
noLabel=NO

It will throw an exception at run time.

None

20.

Question: What can be inserted at //2 so that 6 will be printed by the following code?

AtomicInteger ai = new AtomicInteger(5);
//2 INSERT CODE HERE
System.out.println(x);

Select 2 option(s)

int x = ai.increment();

int x = ai.getAndIncrement();

int x = ai + 1;

int x = ai.incrementAndGet();

int x = ai.addAndGet(1);

int x = ai.getAndSet(6);

21.

Question: Which of the following statements are correct regarding confidential information?

Select 3 option(s)

Confidential information should not be dumped into exception stack traces and log messages.

User input should be treated as confidential and kept encrypted in all components except where it is actually used.

Confidential data should be readable only within a limited context.

Sensitive information should be purged from memory after use.

22.

Question: Assume the following declarations:

class A{ }
class B extends A{ }
class C extends B{ }

class X{
B getB(){ return new B(); }
}

class Y extends X{
//method declaration here
}

Which of the following methods can be inserted in class Y?

Select 2 option(s)

Public C getB(){ return new B(); }

Protected B getB(){ return new C(); }

C getB(){ return new C(); }

A getB(){ return new A(); }

23.

Question: Given:

import java.io.*;
class TestClass{
public static void main(String[] args) throws Exception{
try(var bfr = new BufferedReader(new InputStreamReader(System.in))){
System.out.println("Enter Number:");
var s = bfr.readLine();
System.out.println("Your Number is : "+s);
}catch(Exception e){
e.printStackTrace();
}
}
}

What will be the output if the above code is executed using the following command:

java TestClass 123

Select 1 option(s)

Enter Number:
(Program is stuck after printing the above)

Enter Number:
Your Number is:123

Enter Number:
Your Number is:TestClass 123

An exception stack trace will be printed.

None

24.

Question: Given:

class Base{
public ArrayList transform(Set list){
//valid code
};
}

class Derived extends Base{
*INSERT CODE HERE*
//valid code
}
}

What can be inserted in the above code?

Select 1 option(s)

public List< Number > transform(Set< Integer > list){

public List< Integer > transform(Set< Integer > list){

public ArrayList< ? super Integer > transform(Set< Integer > list){

public ArrayList ? extends Number transform(Set Number list){

public ArrayList Number transform(Set list){

None

25.

Question: What happens when you try to compile and run the following program?

public class CastTest{
public static void main(String args[ ] ){
byte b = -128 ;
int i = b ;
b = (byte) i;
System.out.println(i+" "+b);
}
}

Select 1 option(s)

The compiler will refuse to compile it because i and b are of different types cannot be assigned to each other.

The program will compile and will print -128 and -128 when run .

The compiler will refuse to compile it because -128 is outside the range of values for a byte.

The program will compile and will print 128 and -128 when run .

The program will compile and will print 255 and -128 when run .

None

26.

Question: Given the following command:

javac --module-source-path c:\java\a -d c:\java\b -p c:\java\c -m x.y

Which of the following statements are correct?

Select 1 option(s)

A directory named out will be created under c:\java\b

A directory named x/y will be created under c:\java\b

A directory named x.y will be created under c:\java\c

Class files will be created under c:\java\b\x.y

Class files will be created under c:\java\a

This command is not valid because -classpath option is missing.

None

27.

Question: Consider:

class A { public void perform_work(){} }
class B extends A { public void perform_work(){} }
class C extends B { public void perform_work(){} }

How can you let perform_work() method of A to be called from an instance method in C?

Select 1 option(s)

( (A) this ).perform_work( );

super.perform_work( );

super.super.perform_work( );

this.super.perform_work( );

It is not possible.

None

28.

Question: In the following code, after which statement (earliest), the object originally held in s, may be garbage collected ?

1. public class TestClass{
2. public static void main (String args[]){
3. Student s = new Student("Vaishali", "930012");
4. s.grade();
5. System.out.println(s.getName());
6. s = null;
7. s = new Student("Vaishali", "930012");
8. s.grade();
9. System.out.println(s.getName());
10 s = null;
}
}

public class Student{
private String name, rollNumber;

public Student(String name, String rollNumber) {
this.name = name;
this.rollNumber = rollNumber;
}

//valid setter and getter for name and rollNumber follow

public void grade() {
}

}

Select 1 option(s)

It will not be Garbage Collected till the end of the program.

Line 5

Line 6

Line 7

Line 10

None

29.

Question: Given:

List ls = Arrays.asList(1, 2, 3);

Which of the following options will compute the sum of all Integers in the list correctly?

Select 2 option(s)

30.

Question: Identify examples of autoboxing.

Select 3 option(s)

Long l = Long.valueOf(200);

Integer i = 10;

Integer getValue(){ return 2; }

Long getValue(){ return 2; }

System.out.println(2+"");

31.

Question: Which of the following are valid implementations of java.lang.Comparable?

Select 1 option(s)

var cin = new Comparable Integer (){
public int compareTo(Integer i1, Integer i2){
return i1.compareTo(i2);
}
};

var cin = new Comparable Integer (){
public int compareTo(Integer i1){
return "100".compareTo(""+i1);
}
};

var cin = new Comparable Integer (){
int i = 10;
public int compare(Integer i1){
return i1-this.i;
}
};

var cin = new Comparable<Integer>(){
public int compareTo(Integer i1, Integer i2){
return i1 - i2;
}
};

None

32.

Question: Consider the following class definition:

public class TestClass{
public static void main(String[] args){ new TestClass().sayHello(); } //1
public static void sayHello(){ System.out.println("Static Hello World"); } //2
public void sayHello() { System.out.println("Hello World "); } //3
}

What will be the result of compiling and running the class?

Select 1 option(s)

It will print Hello World.

It will print Static Hello World.

Compilation error at line 2.

Compilation error at line 3.

Runtime Error.

None

33.

Question: Which of the following are correct definitions of a repeatable annotation?

Select 1 option(s)

@Repeatable
public @interface Author {
int id() default 0;
String name();
}

@Repeatable(List.class)
public @interface Author {
int id() default 0;
String name();
}

@Repeatable(List<Author>)
public @interface Author {
int id() default 0;
String name();
}

public @interface Authors{
Author[] value();
}
@Repeatable(Authors.class)
public @interface Author {
int id() default 0;
String name();
}

public class Authors{
Author[] values;
}
@Repeatable(Authors.class)
public @interface Author {
int id() default 0;
String name();
}

public class Authors{
List<Author> authors;
}

@Repeatable(Authors.class)
public @interface Author {
int id() default 0;
String name();
}

None

34.

Question: What will the following code print when compiled and run?

public class Onion {
private String data = "skin";

private class Layer extends Onion {
String data = "thegoodpart";
public String getData() {
return data;
}
}

public String getData() {
return new Layer().getData();
}

public static void main(String[] args) {
var o = new Onion();
System.out.println(o.getData());
}
}

Select 1 option(s)

It will print an empty String.

Skin

Thegoodpart

It will not compile.

It will throw an exception at run time.

None

35.

Question: Given:

class Item{
private int id;
private String name;
public Item(int id, String name){
this.id = id;
this.name = name;
}
public Integer getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}
public String toString(){
return name;
}
}

public class Test {
public static void main(String[] args) {
List l = Arrays.asList(
new Item(1, "Screw"),
new Item(2, "Nail"),
new Item(3, "Bolt")
);

l.stream()
//INSERT CODE HERE
.forEach(System.out::print);
}
}

Which of the following options can be inserted in the above code independent of each other, so that the code will print BoltNailScrew?

Select 2 option(s)

.sorted((a, b)->a.getId().compareTo(b.getId()))

.sorted(Comparator.comparing(a->a.getName())).map((i)->i.getName())

.map((i)->i.getName())

.map((i)->i.getName()).sorted()

36.

Question: Identify examples of auto-unboxing.

Select 2 option(s)

Int getValue(){ return new int[]{ 1 }; }

New ArrayList().add(1);

List.of(1, 2, 3 );

Int ival = optionalInt.get(); //assuming optionalInt is of type Optional

long lv = Integer.valueOf(10);

37.

Question: Given:

enum Card
{
HEART, CLUB, SPADE, DIAMOND;
}

Which of the following code fragments will print
HEART CLUB SPADE DIAMOND
in that order?

Select 1 option(s)

for(var i=0; i<4; i++) System.out.println(Card[i]+" ");

while(Card.hasNext()) System.out.println(Card.next()+" ");

for(var c : Card.values()) System.out.print(c+" ");

None of these.

None

38.

Question: What will be the output of the following code snippet?

int a = 1;
int[] ia = new int[10];
int b = ia[a];
int c = b + a;
System.out.println(b = c);

Select 1 option(s)

True

False

None

39.

Question: What will the following statement return?

" hello java guru ".strip();

Select 1 option(s)

The line of code will not compile.

"hellojavaguru"

"hello java guru"

"hello java guru "

None of the above.

None

40.

Question: Consider the following method -

public float parseFloat( String s ){
float f = 0.0f;
try{
f = Float.valueOf( s ).floatValue();
return f ;
}
catch(NumberFormatException nfe){
f = Float.NaN ;
return f;
}
finally{
f = 10.0f;
return f;
}
}

What will it return if the method is called with the input "0.0" ?

Select 1 option(s)

It will not compile.

It will return 10.0

It will return Float.Nan

It will return 0.0

None of the above.

None

41.

Question: What will be the result of attempting to compile the following program?

public class TestClass{
long l1;
public void TestClass(long pLong) { l1 = pLong ; } //(1)
public static void main(String args[]){
TestClass a, b ;
a = new TestClass(); //(2)
b = new TestClass(5); //(3)
}
}

Select 1 option(s)

A compilation error will be encountered at (1), since constructors should not specify a return value.

A compilation error will be encountered at (2), since the class does not have a default constructor.

A compilation error will be encountered at (3).

The program will compile correctly.

It will not compile because parameter type of the constructor is different than the type of value passed to it.

None

42.

Question: Consider the following code:

public class FileCopier {
public static void copy(String records1, String records2) throws IOException {
try (
InputStream is = new FileInputStream(records1);
OutputStream os = new FileOutputStream(records2);) {
byte[] buffer = new byte[1024];
int bytesRead = 0;
while ((bytesRead = is.read(buffer)) != -1) {
os.write(buffer, 0, bytesRead);
System.out.println("Read and written bytes " + bytesRead);
}
} catch (IOException | IndexOutOfBoundsException e) {
e = new FileNotFoundException();
e.printStackTrace();
}
}

public static void main(String[] args) throws Exception {
copy("c:\\temp\\test1.txt", "c:\\temp\\test2.txt");
}
}

Assuming appropriate import statements and the existence of both the files, what will happen when the program is compiled and run?

Select 1 option(s)

The program will not compile because the try statement is used incorrectly.

The program will not compile because the catch clause is used incorrectly.

The program will not compile because the line e = new FileNotFoundException(); in catch block is invalid.

The program will not compile because the line e.printStackTrace(); in catch block is invalid.

It will compile and run without any error or exception.

It will compile but will throw an exception when run.

None

43.

Question: Given:

var sList = new CopyOnWriteArrayList();

Which of the following statements are correct?

Select 1 option(s)

Student class must be Cloneable or Serializable.

Student objects retrieved from sList are thread safe.

Multiple threads can get Student objects from sList but can't add to it in a thread safe manner simultaneously.

Multiple threads can safely add and remove objects from sList simultaneously.

Any code that adds objects to sList must be synchronized but code that gets objects need not be.

If a thread tries to add an object to it while another is iterating through the list, the second thread may get ConcurrentModificationException.

You cannot add null to sList.

None

44.

Question: Given:

public class Device implements AutoCloseable{
boolean open = false;
public Device(){
open = true;
}

public String read() throws IOException{
throw new IOException("Can't read!");
}

public boolean isOpened(){
return open;
}

public void close(){
open = false;
System.out.println("Device closed");
}

public static void main(String[] args) {
Device d1 = new Device();
try(d1;
Device d2 = new Device();
Device d3 = new Device()){
d2.read();
}catch(Exception e){
System.out.println("Got Exception "+e.getMessage());
}
}
}

What is the status of Device objects at the end of the try/catch blocks?

Select 1 option(s)

All three will be closed.

D1 and d3 will be closed but d2 will remain open.

D1 and d2 will be closed but d3 will remain open.

D2 will be closed but d1 and d3 will remain open.

All three will remain opened.

Compilation failure.

None

45.

Question: What will be the result of attempting to compile and run the following program?

public class TestClass{
public static void main(String args[]){
Exception e = null;
throw e;
}
}

Select 1 option(s)

The code will fail to compile.

The program will fail to compile, since it cannot throw a null.

The program will compile without error and will throw an Exception when run.

The program will compile without error and will throw java.lang.NullPointerException when run

The program will compile without error and will run and terminate without any output.

None

46.

Question: Given:

String[] p = {"1", "2", "3" };

Which of the following lines of code is/are valid?

Select 1 option(s)

None

47.

Question: Identify correct statements about Java exceptions.

Select 1 option(s)

Errors and its subclasses are meant for situations from which an application can recover while RuntimeException and its subclasses are meant for situations from which an application cannot recover.

RuntimeException and its subclasses are used for recoverable situations.

Neither Errors nor RuntimeExceptions are used for recoverable situations. RuntimeExceptions should be identified during testing and eliminated by fixing the code, while Errors should be eliminated by fixing the environment.

Both - Errors and RuntimeExceptions - are recoverable and should be caught. A helpful message should be shown to the user instead of generating a stack trace on the console.

None

48.

Question: Given:

class Base{
public List transform(Set list){
//valid code
};
}

class Derived extends Base{
*INSERT CODE HERE*
//valid code
}
}

What can be inserted in the above code?

Select 2 option(s)

public List< String > transform(Set< String > list){

public List Object transform(Set CharSequence list){

public ArrayList CharSequence transform(Set CharSequence list){

public List StringBuilder transform(Set CharSequence id){

public List< Integer > transform(TreeSet< CharSequence > id){

public ArrayList< String > transform(Set< String > id){

49.

Question: What will the following code print when compiled and run?

BiPredicate bip = (s, i)-> s.length()>i; //1
BiFunction bif = (s, i)-> { //2
if(bip.test(s, i)){ //3
return s.substring(0, i);
}
else return s;
};
String str = bif.apply("hello world", 5); //4
System.out.println(str);

Select 1 option(s)

hello

compilation failure at //1.

compilation failure at //2.

compilation failure at //3.

compilation failure at //4.

None

50.

Question: Which statements can be inserted at line 1 in the following code to make the program write x on the standard output when run?

public class AccessTest{
String a = "x";
static char b = 'x';
String c = "x";
class Inner{
String a = "y";
String get(){
String c = "temp";
// Line 1
return c;
}
}

AccessTest() {
System.out.println( new Inner().get() );
}

public static void main(String args[]) { new AccessTest(); }
}

Select 3 option(s)

c = c;

c = this.a;

c = ""+AccessTest.b;

c = AccessTest.this.a;

c = ""+b;

51.

Question: Your application was developed and packaged on the Java 8 platform as a jar file. It consists of the following packages:

com.abc.stocks
com.abc.stocks.valuation
com.abc.stocks.analytics
com.abc.bonds
com.abc.bonds.valuation
com.abc.bonds.analytics
com.abc.derivatives
com.abc.derivatives.valuation
com.abc.derivatives.analytics

You are now trying to modularize it into three different modules. Which of the following module descriptions could potentially be valid?

Select 1 option(s)

module com.abc.stocks{
provides com.abc.stocks.analytics;
}
module com.abc.bonds{
provides com.abc.bonds.analytics;
}
module com.abc.derivatives{
provides com.abc.derivatives.analytics;
}

module com.abc.stocks{
exports com.abc.stocks.analytics;
}
module com.abc.bonds{
exports com.abc.bonds.analytics;
}
module com.abc.derivatives{
exports com.abc.derivatives.analytics;
}

module com.abc.stocks{
opens com.abc.stocks.analytics;
}
module com.abc.bonds{
opens com.abc.bonds.analytics;
}
module com.abc.derivatives{
opens com.abc.derivatives.analytics;
}

module com.abc.stocks{
uses com.abc.stocks.valuation;
uses com.abc.stocks.analytics;
}
module com.abc.bonds{
uses com.abc.bonds.valuation;
uses com.abc.bonds.analytics;
}
module com.abc.derivatives{
uses com.abc.derivatives.valuation;
uses com.abc.derivatives.analytics;
}

None

52.

Question: Given the following exception classes:

class MyException extends Exception{}
class MyException1 extends MyException{}
class MyException2 extends MyException{}
class MyException3 extends MyException2{}

and the following code:

try{
//code that could potentially throw any of the above mentioned exceptions
}
INSERT CODE HERE

Which of the following options can be inserted in the above code?

Select 1 option(s)

catch(MyException|MyException3 e){ }

catch(MyException3 me3){ }
catch(Exception e){ }

catch(MyException2 me2){ }
catch(MyException3 me3){ }

catch(Throwable t){ }
catch(MyException3 me3){ }

catch(MyException|MyException1|MyException2|MyException3 e){ }

None

53.

Question: Given:

StringBuilder sb = new StringBuilder("asdf");

Which of the following code fragments will print true?

Select 1 option(s)

String str1 = sb.toString();
String str2 = sb.toString();
System.out.println(str1 == str2);

String str1 = sb.toString();
String str2 = str1;
System.out.println(str1 == str2);

String str1 = sb.toString();
System.out.println(str1 == sb);

System.out.println(sb == new StringBuilder(sb));

None

54.

Question: What will the following code print ?

class Test{
public static void main(String[] args){
int k = 1;
int[] a = { 1 };
k += (k = 4) * (k + 2);
a[0] += (a[0] = 4) * (a[0] + 2);
System.out.println( k + " , " + a[0]);
}
}

Select 1 option(s)

It will not compile.

4 , 4

25 , 25

13 , 13

None of the above.

None

55.

Question: Given:

class Booby{
}
class Dooby extends Booby{
}
class Tooby extends Dooby{
}

and the following declarations:

List bV = null;
List tV = null;

Which of the following statements will compile without any error?

Select 1 option(s)

bV.add( tV.get(0) );

tV.add( bV.get(0) );

bV = tV;

tV = bV;

None of the above.

None

Time's up

Time is Up!