100% PASS RATE Oracle Java SE 1z1-819 Certified Exam DUMP with 262 Questions
Updates For the Latest 1z1-819 Free Exam Study Guide!
NEW QUESTION # 144
Given:
What is the result?
- A. AnotherClass#methodA()SomeClass#methodA()
- B. AnotherClass#methodA()AnotherClass#methodA()
- C. A ClassCastException is thrown at runtime.
- D. The compilation fails.
- E. SomeClass#methodA()SomeClass#methodA()
- F. SomeClass#methodA()AnotherClass#methodA()
Answer: D
Explanation:
NEW QUESTION # 145
Given the declaration:
Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)
- A. @Resource
- B. @Resource("Customer1")
- C. @Resource(value={{}})
- D. @Resource()
- E. @Resource({"Customer1", "Customer2"})
Answer: B,E
NEW QUESTION # 146
Given:
What is the result?
- A. 5 12
- B. compilation error
- C. 6 13
- D. 0 5
Answer: B
Explanation:
NEW QUESTION # 147
Which describes an aspect of Java that contributes to high performance?
- A. Java monitors and optimizes code that is frequently executed.
- B. Java has a library of built-in functions that can be used to enable pipeline burst execution.
- C. Java automatically parallelizes code execution.
- D. Java prioritizes garbage collection.
Answer: A
NEW QUESTION # 148
Given:
Which three classes successfully override printOne()? (Choose three.)
- A. Option C
- B. Option B
- C. Option E
- D. Option D
- E. Option A
- F. Option F
Answer: A,D,E
NEW QUESTION # 149
Given:
What is the result?
- A. 1.99,2.99,0
- B. 1.99,2.99
- C. The compilation fails.
- D. 1.99,2.99,0.0
Answer: C
Explanation:
NEW QUESTION # 150
Analyze the code:
Which two options can you insert inside println method to produce Global:namescope? (Choose two.)
- A. Test.prefix+Test.getName()
- B. Test.prefix+Test.name
- C. Test.getName+prefix
- D. new Test().prefix+new Test().name
- E. prefix+name
- F. prefix+Test.name
Answer: A,D
NEW QUESTION # 151
Given:
What needs to change to make these classes compile and still handle all types of Interface Worker?
- A. Replace Line 1 with public class Main extends Thread {.
- B. Replace Line 3 with public void addProcess (Worker w) {.
- C. Replace Line 2 with private List processes = new ArrayList<>();.
- D. Replace Line 3 with public void addProcess(T w) {.
Answer: D
NEW QUESTION # 152
Given:
What is the result?
- A. abdf
- B. abcd
- C. adf
- D. The compilation fails.
- E. abd
Answer: B
NEW QUESTION # 153
Given:
Assume the file on path does not exist. What is the result?
- A. /u01/work/filestore.txt is deleted.
- B. The compilation fails.
- C. Exception
- D. /u01/work/filestore.txt is not deleted.
Answer: B
Explanation:
NEW QUESTION # 154
Your organization makes mlib.jar available to your cloud customers. While working on a new feature for mlib.jar, you see that the customer visible method public void enableService(String hostName, String portNumber) executes this code fragment
and you see this grant is in the security policy file:
What security vulnerability does this expose to your cloud customer's code?
- A. none because the customer code base must also be granted SocketPermission
- B. SQL injection attack against the specified host and port
- C. denial of service attack against any reachable machine
- D. privilege escalation attack against the OS running the customer code
- E. XML injection attack against any mlib server
Answer: B
NEW QUESTION # 155
Given:
Which statement is true about the Fox class?
- A. Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.
- B. The inhabit method implementation from the first interface that Fox implements will take precedence.
- C. Fox class does not have to override inhabit method, so long as it does not try to call it.
- D. Fox class must provide implementation for the inhabit method.
- E. Fox class must implement either Forest or Town interfaces, but not both.
Answer: A
NEW QUESTION # 156
Given:
What is the type of the local variable x?
- A. String[ ]
- B. Character
- C. char
- D. String
Answer: D
NEW QUESTION # 157
Given the code fragment:
You want to display the value of currency as $100.00.
Which code inserted on line 1 will accomplish this?
- A. NumberFormat formatter = NumberFormat.getInstance(locale).getCurrency();
- B. NumberFormat formatter = NumberFormat.getCurrency(locale);
- C. NumberFormat formatter = NumberFormat.getInstance(locale);
- D. NumberFormat formatter = NumberFormat.getCurrencyInstance(locale);
Answer: A
NEW QUESTION # 158
Given:
public class X {
}
and
public final class Y extends X {
}
What is the result of compiling these two classes?
- A. The compilation fails because either class X or class Y needs to implement the toString() method.
- B. The compilation succeeds.
- C. The compilation fails because there is no zero args constructor defined in class X.
- D. The compilation fails because a final class cannot extend another class.
Answer: A
Explanation:
NEW QUESTION # 159
Given:
What is the result?
- A. 6910 3
- B. 6104 3
- C. 10126 3
- D. 0
Answer: B
Explanation:
NEW QUESTION # 160
Given:
What is the type of the local variable x?
- A. String[ ]
- B. Character
- C. char
- D. String
Answer: D
NEW QUESTION # 161
Given:
Assume the file on path does not exist. What is the result?
- A. /u01/work/filestore.txt is deleted.
- B. The compilation fails.
- C. Exception
- D. /u01/work/filestore.txt is not deleted.
Answer: B
Explanation:
NEW QUESTION # 162
Given:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 163
Examine these module declarations:
Which two statements are correct? (Choose two.)
- A. The ServiceProvider module should export the com.myimpl package.
- B. The placement of the com.example.api API in a separate module, ServiceAPI, makes it easy to install multiple provider modules.
- C. The ServiceProvider module is the only module that, at run time, can provide the com.example.api API.
- D. The Consumer module should require the ServiceProvider module.
- E. The ServiceProvider module does not know the identity of a module (such as Consumer) that uses the com.example.api API.
Answer: C,D
NEW QUESTION # 164
Given:
Which two lines can replace line 1 so that the Y class compiles? (Choose two.)
- A. super.set(map.values());
- B. super.set(List<String> map)
- C. set(map)
- D. set(map.values());
- E. map.forEach((k, v) -> set(v)));
Answer: A,D
NEW QUESTION # 165
Given:
This code results in a compilation error.
Which code should be inserted on line 1 for a successful compilation?
- A. Consumer consumer = msg -> { return System.out.print(msg); };
- B. Consumer consumer = var arg > {System.out.print(arg);};
- C. Consumer consumer = System.out::print;
- D. Consumer consumer = (String args) > System.out.print(args);
Answer: C
Explanation:
NEW QUESTION # 166
Which two safely validate inputs? (Choose two.)
- A. Modify the input values, as needed, to pass validation.
- B. Accept only valid characters and input values.
- C. Use trusted domain-specific libraries to validate inputs.
- D. Delegate numeric range checking of values to the database.
- E. Assume inputs have already been validated.
Answer: B,D
NEW QUESTION # 167
......
Best 1z1-819 Exam Preparation Material with New Dumps Questions https://www.actualpdf.com/1z1-819_exam-dumps.html
Fast Exam Updates 1z1-819 dumps with PDF Test Engine Practice https://drive.google.com/open?id=1xI1VGQ1V7mLLmB8_ywxmG7LQfqWENanV
