Free Oracle 1Z0-808 Exam Dumps and 1Z0-808 Exam Questions

Question No: 21

MultipleChoice

Given the code fragment:

Which two modifications should you make so that the code compiles successfully?

Options

AOption A

BOption B

COption C

DOption D

EOption E

Question No: 22

MultipleChoice

Which three statements are true about the structure of a Java class?

Options

AA public class must have a main method.

BA class can have only one private constructor.

CA method can have the same name as a field.

DA class can have overloaded static methods.

EThe methods are mandatory components of a class.

FThe fields need not be initialized before use.

Question No: 23

MultipleChoice

Which code fragment causes a compilation error?

Options

AOption A

BOption B

COption C

DOption D

EOption E

Question No: 24

MultipleChoice

Which three statements are true about exception handling?

Options

AOnly unchecked exceptions can be rethrown.

BAll subclasses of the RuntimeException class are recoverable.

CThe parameter in a catch block is of Throwable type.

DAll subclasses of the RuntimeException class must be caught or declared to be thrown.

EAll subclasses of the Exception class except the RuntimeException class are checked exceptions.

FAll subclasses of the Error class are checked exceptions and are recoverable.

Question No: 25

MultipleChoice

Given the code fragment:

Which code fragment, inserted at line n1, pints The Top element: 30?

Options

AOption A

BOption B

COption C

DOption D

EOption E

Question No: 26

MultipleChoice

Given:

And given the commands:

javac Test.java

java Test

What is the result?

Options

AJava SE

BJava EE

CCompilation fails at line n1.

DA NullPointerException is thrown at runtime.

Question No: 27

MultipleChoice

Given the following class:

Which three pieces of code, when inserted independently, set the value of amount to 100?

Options

AOption A

BOption B

COption C

DOption D

EOption E

FOption F

Question No: 28

MultipleChoice

Given the code fragments:

And,

Which statement is true?

Options

AAfter line 11, three objects are eligible for garbage collection.

BAfter line 11, two objects are eligible for garbage collection.

CAfter line 11, one object is eligible for garbage collection.

DAfter line 11, none of the objects are eligible for garbage collection.

Question No: 29

MultipleChoice

Given the following class:

Which two changes would encapsulate this class and ensure that the area field is always equal to length * height whenever the Rectangle class is used?

Options

ACall the setArea method at the end of the setHeight method.

BCall the setArea method at the beginning of the setHeight method.

CCall the setArea method at the end of the setLength method.

DCall the setArea method at the beginning of the setLength method.

EChange the setArea method to private.

FChange the area field to public.

Question No: 30

MultipleChoice

Given the code fragment:

Which two code fragments can be independently inserted at line n1 to enable the code to print the elements of the array in reverse order?