Oracle 1Z0-819 Online Practice Questions and Exam Preparation

Oracle 1Z0-819 Online Questions & Answers

• Question 21:

  Given: What is the output?

  

  A. 2.0
  B. 2
  C. The compilation fails.
  D. An exception is thrown at runtime.
  C. The compilation fails.

• Question 22:

  Given:

  

  Assume the file on path does not exist. What is the result?

  A. The compilation fails.
  B. /u01/work/filestore.txt is not deleted.
  C. Exception
  D. /u01/work/filestore.txt is deleted.
  A. The compilation fails.

• Question 23:

  Given the code fragment:

  Integer i = 11;

  Which two statements compile? (Choose two.)

  A. Double c = (Double) i;
  B. Double b = Double.valueOf(i);
  C. Double a = i;
  D. double e = Double.parseDouble(i);
  E. double d = i;
  B. Double b = Double.valueOf(i);
  E. double d = i;

• Question 24:

  Given:

  

  What is the result?

  A. The compilation fails at line 9.
  B. The compilation fails at line 2.
  C. Hello World
  D. The compilation fails at line 8.
  C. Hello World

• Question 25:

  Given:

  

  and the command:

  java ConsoleTest

  The user will input Duke and Java when the input is prompted.

  What is the output?

  A. Input Name: Duke Input Password: Name is: Duke, Password is: Java
  B. Input Name: Duke Input Password: Java Name is: Duke, Password is: Java
  C. Input Name: Duke Input Password: Name is: Duke, Password is:
  D. Input Name: Duke Input Password: Java Name is: Duke, Password is: [C@4f6ee6e4
  D. Input Name: Duke Input Password: Java Name is: Duke, Password is: [C@4f6ee6e4

• Question 26:

  Analyze the code:

  

  Which two options can you insert inside println method to produce Global:namescope? (Choose two.)

  A. Test.prefix+Test.name
  B. new Test().prefix+new Test().name
  C. Test.prefix+Test.getName()
  D. Test.getName+prefix
  E. prefix+Test.name
  F. prefix+name
  B. new Test().prefix+new Test().name
  C. Test.prefix+Test.getName()

• Question 27:

  Given:

  

  What is the result?

  A. 42
  B. The compilation fails due to an error in line 4.
  C. 17
  D. The compilation fails due to an error in line 3.
  E. The compilation fails due to an error in line 2.
  F. The compilation fails due to an error in line 1.
  G. The compilation fails due to an error in line 5.
  A. 42

• Question 28:

  Your organization makes mlib.jar available to your cloud customers. While working on a code cleanup project for mlib.jar, you see this method by customers:

  

  What security measures should be added to this method so that it meets the requirements for a customer accessible method?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

• Question 29:

  Given:

  

  What is the result?

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

• Question 30:

  Given:

  

  What is the result?

  A. 9001: java.io.FileNotFoundException: MyFile.txt-MyFile.txt
  B. 9001: APPLICATION ERROR-9001-MyFile.txt 9001: java.io.FileNotFoundException: MyFile.txt-MyFile.txt
  C. 9001: APPLICATION ERROR-9001-MyFile.txt
  D. Compilations fails at Line 1.
  C. 9001: APPLICATION ERROR-9001-MyFile.txt