Download 1Z0-808 Dumps 2021
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Free demo questions for Oracle 1Z0-808 Exam Dumps Below:
NEW QUESTION 1
The following grid shows the state of a 2D array:
This grid is created with the following code:
Which line of code, when inserted in place of //line n1, adds an X into the grid so that the grid contains three consecutive X’s?
- A. grid[1][3] = ‘X’;
- B. grid[3][1] = ‘X’;
- C. grid[0][2] = ‘X’;
- D. grid[2][0] = ‘X’;
- E. grid[1][2] = ‘X’;
Answer: C
NEW QUESTION 2
Given the code fragment:
What is the result?
- A. [Robb, Rick, Bran]
- B. [Robb, Rick]
- C. [Robb, Bran, Rick, Bran]
- D. An exception is thrown at runtime.
Answer: A
NEW QUESTION 3
Which one of the following code examples uses valid Java syntax?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: A
NEW QUESTION 4
You are developing a banking module. You have developed a class named ccMask that has a maskcc method. Given the code fragment:
You must ensure that the maskcc method returns a string that hides all digits of the credit card number except the four last digits (and the hyphens that separate each group of four digits).
Which two code fragments should you use at line n1, independently, to achieve this requirement?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: BC
NEW QUESTION 5
Given:
What is the result?
- A. e, ei, o
- B. a, ei, o
- C. a,eo, o
- D. e, eo, o
Answer: A
NEW QUESTION 6
Which three are advantages of the Java exception mechanism?
- A. Improves the program structure because the error handling code is separated from the normal program function
- B. Provides a set of standard exceptions that covers all the possible errors
- C. Improves the program structure because the programmer can choose where to handle exceptions
- D. Improves the program structure because exceptions must be handled in the method in which they occurred
- E. Allows the creation of new exceptions that are tailored to the particular program being created
Answer: ACD
NEW QUESTION 7
Given the code fragment:
Assume that the system date is June 20, 2014. What is the result?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: D
NEW QUESTION 8
Which three statements are true about exception handling?
- A. Only unchecked exceptions can be rethrown.
- B. All subclasses of the RuntimeException class are recoverable.
- C. The parameter in a catch block is of Throwable type.
- D. All subclasses of the RuntimeException class must be caught or declared to be thrown.
- E. All subclasses of the Exception class except the RuntimeException class are checked exceptions.
- F. All subclasses of the Error class are checked exceptions and are recoverable.
Answer: BCE
NEW QUESTION 9
Given the code fragment:
Which option represents the state of the num array after successful completion of the outer loop?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: A
NEW QUESTION 10
Given:
What is the result?
- A. 3 4 5 6
- B. 3 4 3 6
- C. 5 4 5 6
- D. 3 6 4 6
Answer: C
NEW QUESTION 11
Given:
What is the result?
- A. true:true
- B. true:false
- C. false:true
- D. false:false
Answer: C
NEW QUESTION 12
Given:
And given the code fragment:
Which two modifications enable the code to print the following output? Canine 60 Long
Feline 80 Short
- A. Replace line n1 with:super ();this.bounds = bounds;
- B. Replace line n1 with:this.bounds = bounds;super ();
- C. Replace line n2 with:super (type, maxSpeed);this (bounds);
- D. Replace line n1 with:this (“Canine”, 60);this.bounds = bounds
- E. Replace line n2 with:super (type, maxSpeed);this.bounds = bounds;
Answer: A
NEW QUESTION 13
Given the code fragment:
Which option can replace xxx to enable the code to print 135?
- A. int e = 0; e < = 4; e++
- B. int e = 0; e < 5; e + = 2
- C. int e = 1; e < = 5; e + = 1
- D. int e = 1; e < 5; e+ =2
Answer: B
NEW QUESTION 14
Given:
What is the result?
- A. Compilation fails.
- B. 3 5
- C. 0 0
- D. 9 25
Answer: B
NEW QUESTION 15
Given:
And given the code fragment: Book book1 = new EBook (); Book1.readBook();
Which option enables the code to compile?
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Answer: A
NEW QUESTION 16
Given:
And the code fragment:
Which code fragment, when inserted at line 14, enables the code to print Mike Found?
- A. int f = ps.indexOf (p2)
- B. int f = ps.indexOf (Patient (“Mike”) );
- C. int f = ps.indexOf (new Patient “Mike”) );
- D. Patient p = new Patient (“Mike”);Int f = ps.indexOf (p)
Answer: A
NEW QUESTION 17
Given:
And given the commands: javac Test.Java
Java Test Hello What is the result?
- A. Success
- B. Failure
- C. Compilation fails.
- D. An exception is thrown at runtime
Answer: B
NEW QUESTION 18
Given the code fragment:
What is the result?
- A. Jesse 25Walter 52
- B. Compilation fails only at line n1
- C. Compilation fails only at line n2
- D. Compilation fails at both line n1 and line n2
Answer: D
NEW QUESTION 19
Given the code fragment:
What is the result?
- A. 100
- B. 101
- C. 102
- D. 103
- E. Compilation fails
Answer: E
NEW QUESTION 20
Given:
What is the result?
- A. BaseDerivedA
- B. BaseDerivedB
- C. DerivedBDerivedB
- D. DerivedBDerivedA
- E. A classcast Exception is thrown at runtime.
Answer: C
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