1z1-819 Exam Dumps - Try Best 1z1-819 Exam Questions from Training Expert TestkingPDF
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How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
- Types of questions: Performance Based Questions
- Examination Fees: $250 USD
- No. of Questions: 60 Questions
- Length of Exam: 85 min
- Passing Score: 60% or higher
NEW QUESTION 121
You are working on a functional bug in a tool used by your development organization. In your investigation, you find that the tool is executed with a security policy file containing this grant.
What action should you take?
- A. Remove the grant because it is excessive.
- B. Nothing, because it is not related to the bug you are investigating.
- C. File a security bug against the tool referencing the excessive permission granted.
- D. Nothing, because it is an internal tool and not exposed to the public.
- E. Nothing, because listing just the required permissions would be an ongoing maintenance challenge.
Answer: C
NEW QUESTION 122
Given:
Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)
- A. setCCount(c) = cCount;
- B. tCount = tCount;
- C. aCount = a;
- D. setGCount(g);
- E. cCount = setCCount(c);
Answer: B,C
NEW QUESTION 123
Given:
Which option should you choose to enable the code to print Something happened?
- A. Add extends Exception on line 1.
Add extends GeneralException on line 2. - B. Add extends SpecificException on line 1.
Add extends GeneralException on line 2. - C. Add extends Exception on line 1.
Add extends Exception on line 2. - D. Add extends GeneralException on line 1.
Add extends Exception on line 2.
Answer: A
Explanation:
NEW QUESTION 124
Assume ds is a DataSource and the EMP table is defined appropriately.
What does executing this code fragment do?
- A. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', 'HR')
- B. inserts one row (101, 'SMITH', 'HR')
- C. throws a SQLException
- D. inserts two rows (101, 'SMITH', 'HR') and (102, 'JONES', NULL)
Answer: B
NEW QUESTION 125
Given:
Which statement on line 1 enables this code to compile?
- A. Function<int, int> f = n -> n * 2;
- B. Function<Integer> f = n -> n * 2;
- C. Function f = n -> n * 2;
- D. Function<int> f = n -> n * 2;
- E. Function<Integer, Integer> f = n -> n * 2;
Answer: E
Explanation:
NEW QUESTION 126
Given TripleThis.java:
Compiling TripleThis.java gives this compiler warning:
Note: TripleThis.java uses unchecked or unsafe operations.
Which two replacements done together remove this compiler warning?
- A. Replace line 9 with function<Integer> tripler = x-> - { return (Integer) X * 3 ; }.
- B. Replace line 12 with public static int printValue function<Integer, Integer>, f, T num {.
- C. Replace line 9 with function<Integer>, Integer> = X -> { return (integer) x * 3; }.
- D. Replace line 12 with public static <T> void printValue (Function<T, T> f, T num ) {,
- E. Replace line 12 with public static void printValue function<Integer> f, int num) {.
Answer: A,B
NEW QUESTION 127
Given:
Which is true?
- A. The code compiles but does not print any result.
- B. The code throws an exception at runtime.
- C. The code does not compile.
- D. The code prints 25.
Answer: C
NEW QUESTION 128
Given the code fragment:
You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?
- A. BasicFileAttributes attributes = Files isDirectory (path);
- B. BasicFileAttributes attributes = Files.readAttributes(path, BasicFileAttributes.class
- C. BasicFileAttributes attributes = Files, readAttributes (path, FileAttributes, class);
- D. BasicFileAttributes attributes =Files.getAttribute (path, ''insdirectory'');
Answer: C
NEW QUESTION 129
Given the content:
What Is the result?
A)
B)
C)
D)
E)
User Username
- A. Option A
- B. Option C
- C. Option
- D. Option B
- E. Option D
Answer: C,E
NEW QUESTION 130
Given:
Which expression when added at line 1 will produce the output of 1.17?
- A. float z = Math.round((float)x/y*100)/(float)100;
- B. float z = Math.round((float)x/y,2);
- C. float z = (float)(Math.round((float)x/y*100)/100);
- D. float z = Math.round((int)(x/y),2);
Answer: A
Explanation:
NEW QUESTION 131
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
NEW QUESTION 132
Which statement about access modifiers is correct?
- A. An abstract method can be declared with the private modifier.
- B. An instance variable can be declared with the static modifier.
- C. A local variable can be declared with the final modifier.
- D. An inner class cannot be declared with the public modifier.
- E. An interface can be declared with the protected modifier.
Answer: C
NEW QUESTION 133
Given the code fragment:
What is the result?
- A. true false false
- B. false true false
- C. false false true
- D. false true true
Answer: B
Explanation:
NEW QUESTION 134
Given:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 135
Given the code fragment:
What is the result?
- A. 2 : 3
- B. 3 : 0
- C. -1 : 2
- D. 2 : -1
Answer: D
NEW QUESTION 136
Given:
You want to implement the jav
a. Io, serializable interface to the MypersisteneData class.
Which method should be overriden?
- A. The readExternal method
- B. The writeExternal method
- C. nothing
- D. The readExternal and writeExternal method
Answer: D
NEW QUESTION 137
Given this requirement:
Module vehicle depends on module part and makes its com.vehicle package available for all other modules.
Which module-info.java declaration meets the requirement?
- A. Option C
- B. Option A
- C. Option B
- D. Option D
Answer: B
NEW QUESTION 138
Which three annotation uses are valid? (Choose three.)
- A. var v = "Hello" + (@Interned) "World"
- B. Function<String, String> func = (var @NonNull x) > x.toUpperCase();
- C. var myString = (@NonNull String) str;
- D. Function<String, String> func = (@NonNull x) > x.toUpperCase();
- E. var obj = new @Interned MyObject();
- F. Function<String, String> func = (@NonNull var x) > x.toUpperCase();
Answer: B,D,E
NEW QUESTION 139
Given:
Which is true about line 1?
- A. If the value is not present, a NoSuchElementException is thrown at run time.
- B. If the value is not present, nothing is done.
- C. It always executes the System.out::print statement.
- D. If the value is not present, a NullPointerException is thrown at run time.
Answer: B
Explanation:
NEW QUESTION 140
......
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