1z0-808 Sample Questions Answers

Option A

Option B

Option C

Option D

Option E

a, ei, i

a, eo, o

e, ei, i

a, ao, o

false, false

false, true

true, false

true, true

true:false:true

false:true:true

false:true:false

true:true:false

myStr: 9009, myNum: 9009

myStr: 7007, myNum: 7007

myStr: 7007, myNum: 9009

Compilation fails

At line 17, add throws AccessViolationException

At line 13, add throws LogFileException

At line 2, replace throws LogFileException with throws AccessViolationException

At line 7, insert throw new LogFileException ();

EN FR JP

EN FR

CH

EN FR CH

Line 7

Line 8

Line 9

Line 10

Line 11

Line 12

Make the method at line 8 protected.

Make the method at line 8 public.

Make the method at line 10 protected.

Make the method at line 4 public.

Make the method at line 2 public.

The sum of 4 numbers is: 10

A compile time error occurs.

The sum of 5 numbers is: 10

The sum of 5 numbers is: 15

Option A

Option B

Option C

Option D

It must contain the default section.

The break statement, at the end of each case block, is mandatory.

Its case label literals can be changed at runtime.

Its expression must evaluate to a single value.

Option A

Option B

Option C

Option D

String str2 = str1;

String str2 = new String(str1);

String str2 = sb1. toString();

String str2 = "Duke";

It is invoked by JRE

It is a final method

It returns true if it is executed successfully at run time

It must be defined within a public class

Option A

Option B

Option C

Option D

Compilation fails only at line n2.

RTool::exportTool::export

Tool::exportTool:export

Compilation fails only at line n1.

Compilation fails at both line n1 and line n2.

Improves the program structure because the error handling code is separated from the normal program function

Provides a set of standard exceptions that covers all possible errors

Improves the program structure because the programmer can choose where to handle exceptions

Improves the program structure because exceptions must be handled in the method in which they occurred

Allows the creation of new exceptions that are customized to the particular program being created

java MyFile 2

java MyFile 1 2 3 4

java MyFile 1 2 2

java MyFile 2 2

Option A

Option B

Option C

Option D

Option E

Compilation fails at line n2.

Compilation fails at line n1.

20:20

10:20

true

false

-1

0

Option A

Option B

Option C

Option D

employee.salary = 50_000;

director.salary = 80_000;

employee.budget = 200_000;

manager.budget = 1_000_000;

manager.stockOption = 500;

director.stockOptions = 1_000;

Compilation fails.

Hi removed

An UnsupportedOperationException is thrown at runtime.

The program compiles, but it prints nothing.

Bird p = new Peacock();

Bird b = new Bird();Peacock p = (Peacock) b;

Peacock b = new Peacock ();Bird p = (Bird) b;

Bird b = new Peacock ();Peacock p = (Peacock) b;

200.0 : 100.0

400.0 : 200.0

400.0 : 100.0

Compilation fails.

Declare the stock variable and the purchase(), sell(), and printStock() methods static.

Declare the stock variable and the printStock() method static.

Declare the stock and qty variables and the printStock() method static.

Declare the stock variable static.

Option A

Option B

Option C

Option D

Option E

Option A

Option B

Option C

Option D

A NullPointerException is thrown at runtime.

[1, 2, 4]

[1, 2, 4, null]

[1, 3, 4, null]

[1, 3, 4]

Compilation fails.

Compilation fails.

11

8

9

10

Option A

Option B

Option C

Option D

1 2 3 4followed by an ArrayIndexOutOfBoundsException

1 2 3

1 2 3 4

Compilation fails.

Compilation fails.

The program compiles, but it prints nothing.

HiHowAreYou removed

An UnsupportedOperationException is thrown at runtime.

myStr: 7007, myNum: 7007

Error

myStr: 9009, myNum: 7007

myStr: 7007, myNum: 9009

Answer = 0

Invalid calculation

Compilation fails only at line n1.

Compilation fails only at line n2.

Compilation fails at line n1 and line2.

Option A

Option B

Option C

Option D

Option E

Option A

Option B

Option C

Option D

Option A

Option B

Option C

Option D

double sum is 30.0 float sum is 30.0

float sum is 30.0 double sum is 30.0

Integer sum is 30 double sum is 30.0

Integer sum is 30 float sum is 30.0

c=null

b=true

f=0.0

c=

b=false

f=0.0

c=null

b=false

f=0.0

c=0

b=false

f=0.0F

[green, red, yellow, cyan]

[green, blue, yellow, cyan]

[green, red, cyan, yellow]

An IndexOutOfBoundsException is thrown at runtime.

An exception is thrown at runtime.

Compilation fails.

13480.0

13480.02

grid[2][1] = ‘X’;

grid[3][2] = ‘X’;

grid[3][1] = ‘X’;

grid[2][3] = ‘X’;

Option A

Option B

Option C

Option D

Option E

Option F

Match 1

Match 2

No Match

A NullPointerException is thrown at runtime.

Option A

Option B

Option C

Option D

[Robb, Rick, Bran]

[Robb, Rick]

[Robb, Bran, Rick, Bran]

An exception is thrown at runtime.

A

B

Either A or B

A B

A compile time error occurs at line n1

AB

AC

CC

A ClassCastException is thrown only at line n1.

A ClassCastException is thrown only at line n2.

byte x = 1;

short x = 1;

String x = "1";

long x = 1;

double x = 1;

Integer x = new Integer("1");

nullRichardDonald

RichardDonald

Compilation fails.

An ArrayIndexOutOfBoundsException is thrown at runtime.

A NullPointerException is thrown at runtime.

Polymorphism, abstraction, and encapsulation are implemented.

Only polymorphism and inheritance are implemented.

Polymorphism, inheritance, and abstraction are implemented.

Only inheritance and encapsulation are implemented.

44

35

47

54

45

421

Objects cannot be reused.

A subclass must override the methods from a superclass.

Objects can share behaviors with other objects.

A package must contain a main class.

Object is the root class of all other objects.

A main method must be declared in every class.

String main 1

An exception is thrown at runtime

String main 1 2 3

String main 123

Option A

Option B

Option C

OptionD

Option A

Option B

Option C

Option D

Option A

Option B

Option C

Option D

Only the A.Java file compiles successfully.

Only the B.java file compiles successfully.

Only the C.java file compiles successfully.

The A.Java and B.java files compile successfully.

The B.java and C.java files compile successfully.

The A.Java and C.java files compile successfully.

Encapsulation ensures that classes can be designed so that only certain fields and methods of an object are accessible from other objects.

Encapsulation ensures that classes can be designed so that their methods are inheritable.

Encapsulation ensures that classes can be designed with some fields and methods declared as abstract.

Encapsulation ensures that classes can be designed so that if a method has an argument MyType x, any subclass of MyType can be passed to that method.

10

20

A compile time error occurs

20

20

10

10

Comment lines 18 to 21.

Comment line 20.

Comment line 19.

Comment line 16.