1Z0-815 by Oracle Valid Free Exam Practice Test

Question 1

Given:

What is the result?

A. 9 B. 3 C. An exception is thrown at runtime. D. 6

Correct Answer: D

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Question 2

Given:

If file "App.config" is not found, what is the result?

A. Exception in thread "main" java.lang.Error:
Fatal Error: Configuration File, App.config, is missing. B. Configuration is OK C. nothing D. The compilation fails.

Correct Answer: D

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Question 3

What is the result?
public class StringReplace {
public static void main(String[] args) {
String message = "Hi everyone!";
System.out.println("message = " + message.replace("e", "X")); } }

A. message = Hi Xveryone! B. message = Hi XvXryonX! C. message = Hi everyone! D. A compile time error is produced. E. A runtime error is produced. F. message =

Correct Answer: B

Question 4

Given:

Which three classes successfully override printOne()? (Choose three.)

A.

B.

C.

D.

E.

F.

Correct Answer: B,D,F

Question 5

Given the code fragment:

What is the result?

A. false true true B. false true false C. true false false D. false false true

Correct Answer: B

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Question 6

Given the formula to calculate a monthly mortgage payment:

and these declarations:

How can you code the formula?

A. m = p * ((r * Math.pow(1 + r, n) / (Math.pow(1 + r, n)) - 1)); B. m = p * (r * Math.pow(1 + r, n) / (Math.pow(1 + r, n) - 1)); C. m = p * (r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1); D. m = p * r * Math.pow(1 + r, n) / Math.pow(1 + r, n) - 1;

Correct Answer: A

Question 7

Which two statements are true about Java modules? (Choose two.)

A. Any named module can directly access all classes in an automatic module. B. Modular jars loaded from classpath are automatic modules. C. Modular jars loaded from --module-path are automatic modules. D. If a package is defined in both the named module and the unnamed module, then the package in the unnamed module is ignored. E. Classes found in classpath are part of an unnamed module.

Correct Answer: C,E

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Question 8

Given:

Which two methods modify field values? (Choose two.)

A. setACount B. setAllCounts C. setTCount D. setCCount E. setGCount

Correct Answer: A,C

Question 9

Which statement will emoty the contents of a StringBuilder variable named sb?

A. sb.delete(0, sb.length()); B. sb.delete(0, sb.size()); C. sb.removeAll(); D. sb.deleteAll();

Correct Answer: A

Question 10

A method is declared to take three arguments.
A program calls this method and passes only two arguments.
What is the results?

A. The third argument is given the appropriate falsy value for its declared type. B. The third argument is given the value zero. C. An exception occurs when the method attempts to access the third argument. D. The third argument is given the value void. E. Compilation fails. F. The third argument is given the value null.

Correct Answer: E

Oracle Java SE 11 Programmer I - 1Z0-815 Exam Practice Test