Oracle 1Z0-819 Online Practice Questions and Exam Preparation

Oracle 1Z0-819 Online Questions & Answers

• Question 231:

  Given:

  

  What is the result?

  A. nothing
  B. It fails to compile.
  D. A java.lang.IllegalArgumentException is thrown.
  E. 10
  B. It fails to compile.

• Question 232:

  Given:

  

  Given the directory structure:

  

  Given the commands to execute at the Test directory prompt:

  

  Which statement is true?

  

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

• Question 233:

  Which three guidelines are used to protect confidential information? (Choose three.)

  A. Limit access to objects holding confidential information.
  B. Clearly identify and label confidential information.
  C. Manage confidential and other information uniformly.
  D. Transparently handle information to improve diagnostics.
  E. Treat user input as normal information.
  F. Validate input before storing confidential information.
  G. Encapsulate confidential information.
  A. Limit access to objects holding confidential information.
  D. Transparently handle information to improve diagnostics.
  F. Validate input before storing confidential information.

• Question 234:

  Given:

  

  What is the result?

  A. compilation error
  B. 0 5
  C. 6 13
  D. 5 12
  A. compilation error

• Question 235:

  Given the declaration:

  

  Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)

  A. @Resource({"Customer1", "Customer2"})
  B. @Resource(value={{}})
  C. @Resource
  D. @Resource("Customer1")
  E. @Resource()
  A. @Resource({"Customer1", "Customer2"})
  D. @Resource("Customer1")

• Question 236:

  Given the code fragment:

  

  What is the result?

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

• Question 237:

  Given the code fragment:

  

  Which two code snippets inserted independently inside println method print Mondial:domainmodel? (Choose two.)

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

• Question 238:

  Given:

  

  You want to read data through the reader object.

  Which statement inserted on line 1 will accomplish this?

  A. charaters.read(0;
  B. reader,read(characters);
  C. reader.readerline();
  D. characters =reader.read();
  B. reader,read(characters);

• Question 239:

  Given the code fragment:

  

  What is the result?

  A. A java.lang, UnsupportedOperationException is thrown.
  B. True
  C. False
  D. A java.lang.NullPointerException is thrown.
  A. A java.lang, UnsupportedOperationException is thrown.

• Question 240:

  Your organization provides a cloud server to your customer to run their Java code. You are reviewing the changes for the next release and you see this change in one of the config files:

  

  Which is correct?

  A. You accept the change because -noverify is necessary for your code to run with the latest version of Java.
  B. You reject the change because -Xms8g -Xmx8g uses too much system memory.
  C. You accept the change because -noverify is a standard option that has been supported since Java 1.0.
  D. You reject the change because -noverify is a critical security risk.
  D. You reject the change because -noverify is a critical security risk.