Latest Updated Oracle 1Z0-808 practice test | Leads4pass New Exam Dumps Questions And Answers Update

Welcome to your Latest Updated Oracle 1Z0-808 practice test

QUESTION 1

Given the following class declarations:
1.
public abstract class Animal
2.
public interface Hunter
3.
public class Cat extends Animal implements, Hunter
4.
public class Tiger extends Cat
Which answer fails to compile?
[2021.1] lead4pass 1z0-808 practice test q1

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

QUESTION 2

Given:
public class Marklist {
int num;
public static void graceMarks(Marklist obj4) {
obj4.num += 10;
}
public static void main(String[] args) {
MarkList obj1 = new MarkList();
MarkList obj2 = obj1;
MarkList obj1 = null;
obj2.num = 60;
graceMarks(obj2);
}
}
How many objects are created in the memory runtime?

A. 1

B. 2

C. 3

D. 4

QUESTION 3

Given the code fragments:
[2021.1] lead4pass 1z0-808 practice test q3
Which code fragment, when inserted at line ni, enables the code to print Hank?

A. checkAge (iList, ( ) -> p. get Age ( ) > 40);

B. checkAge(iList, Person p -> p.getAge( ) > 40);

C. checkAge (iList, p -> p.getAge ( ) > 40);

D. checkAge(iList, (Person p) -> { p.getAge() > 40; });

QUESTION 4

Given:
[2021.1] lead4pass 1z0-808 practice test q4
What is the result?

A. 1

B. 1

C. 2

D. Compilation fails

E. The loop executes infinite times

QUESTION 5

Given the code fragment:
[2021.1] lead4pass 1z0-808 practice test q5
Which code fragment, when inserted at line 9, enables the code to print true?

A. String str2 = str1;

B. String str2 = new String (str1);

C. String str2 = sb1. toString ();

D. String str2 = "Duke";

QUESTION 6

Given the code fragment:
[2021.1] lead4pass 1z0-808 practice test q6
Which code fragment, when inserted at // insert code here, enables the code to compile and print a bc?

A. List update (String[] strs)

B. Static ArrayListupdate(String [] strs)

C. Static List update (String [] strs)

D. Static void update (String[] strs)

E. ArrayList static update(String [] strs)

QUESTION 7

Given the code fragment:
[2021.1] lead4pass 1z0-808 practice test q7
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

QUESTION 8

Given:
[2021.1] lead4pass 1z0-808 practice test q8

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

F. Option F

QUESTION 9

Given the code in a file Traveler.java:
[2021.1] lead4pass 1z0-808 practice test q9
And the commands: Javac Traveler.java Java Traveler Java Duke What is the result?

A. Happy Journey! Duke

B. Happy Journey! Java

C. An exception is thrown at runtime

D. The program fails to execute due to a runtime error

QUESTION 10

Which two statements are true? (Choose two.)

A. Error class is unextendable.

B. Error class is extendable

C. Error is a RuntimeException

D. Error is an Exception

E. Error is a Throwable.

QUESTION 11

Which statement is/are true?

A. Default constructor only contains "super();" call. II. We can\\'t use any access modifier with a constructor. III. A constructor should not have a return type.

B. Only I.

C. Only II.

D. Only I and II.

E. Only I and III.

F. AIL

QUESTION 12

Given:
[2021.1] lead4pass 1z0-808 practice test q12
What is the result?

A. Base DerivedA

B. Base DerivedB

C. DerivedB DerivedB

D. DerivedB DerivedA

E. A classcast Except ion is thrown at runtime.

QUESTION 13

Which of the following will print current time?

A. System.out.print(new LocalTime()-now0);

B. System.out.print(new LocalTime());

C. System.ouLprint(LocalTime.now());

D. System.ouLprint(LocalTime.today());

E. None of the above.