Updated Oracle 1Z0-808 Dumps

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Free Share 1Z0-808 Dumps Latest Questions And Answers

Question 1:

Given the code fragment:

 1Z0-808 Free Exam Questions 1

What is the result?

A. 10: 10

B. 5: 5

C. 5: 10

D. Compilation fails

Correct Answer: A


Question 2:

Given:

 1Z0-808 Free Exam Questions 2

What is the result?

A. box B. no

C. bo

D. nb

E. An exception is thrown at runtime

Correct Answer: E


Question 3:

Which three are the advantages of the Java exception mechanism?

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

B. Provides a set of standard exceptions that covers all the possible errors

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

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

E. Allows the creation of new exceptions that are tailored to the particular program being created

Correct Answer: ACE


Question 4:

Given the code fragment:

 1Z0-808 Free Exam Questions 4

What is the result?

A. Jesse 25 Walter 52

B. Compilation fails only at line n1

C. Compilation fails only at line n2

D. Compilation fails at both line n1 and line n2

Correct Answer: D


Question 5:

Given:

class Mid {

public int finding(int n1, int n2) {

return (n1 + n2) / 2;

}

}

public class Calc extends Mid {

public static void main(String[] args) {

int n1 = 22, n2 = 2;

// insert code here

System.out.print(n3);

}

}

Which two code fragments, when inserted at // insert code here, enable the code to compile and print 12?

A. Calc c = new Calc(); int n3 = c.findMid(n1,n2);

B. int n3 = super.findMid(n1,n3);

C. Calc c = new Mid(); int n3 = c.findMid(n1, n2);

D. Mid m1 = new Calc(); int n3 = m1.findMid(n1, n2);

E. int n3 = Calc.findMid(n1, n2);

Correct Answer: AD

Incorrect: Not B: circular definition of n3. Not C: Compilation error. line Calc c = new Mid(); required: Calc found: Mid Not E: Compilation error. line int n3 = Calc.findMid(n1, n2); non-static method findMid(int,int) cannot be referenced from a static context


Question 6:

Given the code fragment:

 1Z0-808 Free Exam Questions 6

Assume that the system date is June 20, 2014. What is the result?

 1Z0-808 Free Exam Questions 6-2

A. Option A

B. Option B

C. Option C

D. Option D

Correct Answer: A


Question 7:

Given the code fragment:

 1Z0-808 Free Exam Questions 7

What is the result?

A. 20

B. 25

C. 29

D. Compilation fails

E. AnArrayIndexOutOfBoundsException is thrown at runtime

Correct Answer: A


Question 8:

Given the code fragment:

 1Z0-808 Free Exam Questions 8

What is the result?

A. May 04, 2014T00:00:00.000

B. 2014-05-04T00:00: 00. 000

C. 5/4/14T00:00:00.000

D. An exception is thrown at runtime.

Correct Answer: D

java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: HourOfDay


Question 9:

Given the code fragment:

 1Z0-808 Free Exam Questions 9

And given the requirements:

If the value of the qty variable is greater than or equal to 90, discount = 0.5 If the value of the qty variable is between 80 and 90, discount = 0.2 Which two code fragments can be independently placed at line n1 to meet the requirements?

 1Z0-808 Free Exam Questions 9-2

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

Correct Answer: AC


Question 10:

Given:

 1Z0-808 Free Exam Questions 10

The class is poorly encapsulated. You need to change the circle class to compute and return the area instead.

Which two modifications are necessary to ensure that the class is properly encapsulated?

A. Remove the area field.

B. Change the getArea( ) method as follows: public double getArea ( ) { return Match.PI * radius * radius; }

C. Add the following method: public double getArea ( ) {area = Match.PI * radius * radius; }

D. Change the access modifier of the SerRadius ( ) method to be protected.

Correct Answer: BD


Question 11:

Given the code fragment:

 1Z0-808 Free Exam Questions 11

What is the result?

A. 10 8 6 4 2 0

B. 10 8 6 4 2

C. AnArithmeticException is thrown at runtime

D. The program goes into an infinite loop outputting: 10 8 6 4 2 0. . .

E. Compilation fails

Correct Answer: B


Question 12:

Given:

 1Z0-808 Free Exam Questions 12

Which code fragment should you use at line n1 to instantiate the dvd object successfully?

A. Option A

B. Option B

C. Option C

D. Option D

Correct Answer: C


Question 13:

Given the for loop construct:

for ( expr1 ; expr2 ; expr3 ) {

statement;

}

Which two statements are true?

A. This is not the only valid for loop construct; there exists another form of for loop constructor.

B. The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begins.

C. When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration through the loop.

D. The expression expr3 must be present. It is evaluated after each iteration through the loop.

Correct Answer: BC

The statement has these forms:

for (init-state; condition; next-stmt) {

body

}

There are three clauses in the for statement.

The init-stmt statement is done before the loop is started, usually to initialize an iteration variable.

The condition expression is tested each time the loop is done. The loop isn’t executed if the boolean

expression is false (the same as the while loop). The next-stmt statement is done after the body is

executed. It typically increments an iteration variable.


Question 14:

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

A. A class can have only one private constructor.

B. A method can have the same name as a field.

C. A class can have overloaded static methods.

D. A public class must have a main method.

E. The methods are mandatory components of a class.

F. The fields need not be initialized before use.

Correct Answer: BDE

Explanation:

A: Private constructors prevent a class from being explicitly instantiated by its callers.

If the programmer does not provide a constructor for a class, then the system will always provide a default,

public no-argument constructor. To disable this default constructor, simply add a private no-argument

constructor to the class. This private constructor may be empty.

B: The following works fine:

int cake() {

int cake=0;

return (1);

}

C: We can overload static methods in Java. In terms of method overloading static methods are just like

normal methods and in order to overload the static method you need to provide another static method with

same name but a different method signature.

Incorrect:

Not D: Only a public class in an application need to have a main method.

Not E:

Example:

class A

{

public string something;

public int a;

}

Q: What do you call classes without methods? Most of the time: An anti-pattern.

Why? Because it facilitates procedural programming with “Operator” classes and data structures. You separate data and behavior which isn’t exactly good OOP.

Often times: A DTO (Data Transfer Object)

Read-only data structures meant to exchange data, derived from a business/domain object.

Sometimes: Just data structure.

Well sometimes, you just gotta have those structures to hold data that is just plain and simple and has no

operations on it.

Not F: Fields need to be initialized. If not the code will not compile.

Example:

Uncompilable source code – variable x might not have been initialized


Question 15:

View the exhibit.

 1Z0-808 Free Exam Questions 15

Given the code fragment:

 1Z0-808 Free Exam Questions 15-2

Which change enables the code to print the following?

James age: 20 Williams age: 32

A. Replacing line 5 with public static void main (String [] args) throws MissingInfoException, AgeOutofRangeException {

B. Replacing line 5 with public static void main (String [] args) throws. Exception {

C. Enclosing line 6 and line 7 within a try block and adding: catch(Exception e1) { //code goes here} catch (missingInfoException e2) { //code goes here} catch (AgeOutofRangeException e3) {//code goes here}

D. Enclosing line 6 and line 7 within a try block and adding: catch (missingInfoException e2) { //code goes here} catch (AgeOutofRangeException e3) {//code goes here}

Correct Answer: C


 

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