Oct 11, 2021 Step by Step Guide to Prepare for 1z0-808 Exam BrainDumps
Java and Middleware 1z0-808 Real Exam Questions and Answers FREE Updated on 2021
NEW QUESTION 80
Given the code fragment:
What is the result?
- A. Compilation fails.
- B. [1, 2, 4, null]
- C. A NullPointerException is thrown at runtime.
- D. [1, 3, 4, null]
- E. [1, 2, 4]
- F. [1, 3, 4]
Answer: E
NEW QUESTION 81
Given:
What is the result?
- A. 3 6 4 6
- B. 3 4 5 6
- C. 5 4 5 6
- D. 3 4 3 6
Answer: C
NEW QUESTION 82
Given the code fragment:
Which modification enables the code to print 54321?
- A. Replace line 6 with --x; and, at line 7, insert System.out.print (x);
- B. Replace line 6 with System.out. print (--x) ;
- C. At line 7, insert x --;
- D. Replace line 12 with return (x > 0) ? false: true;
Answer: C
NEW QUESTION 83
Given:
What is the result?
- A. Compilation fails.
- B. Richard
Donald - C. null
Richard
Donald - D. A NullPointerExceptionis thrown at runtime.
- E. An ArrayIndexOutOfBoundsException is thrown at runtime.
Answer: C
NEW QUESTION 84
Given:
Which code fragment can replace the if block?
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: B
NEW QUESTION 85
Given the code fragment:
What is the result?
- A. Execution completes normally, and Ready to use is printed to the console.
- B. Execution terminates in the first catch statement, and caught a RuntimeException is printed to the console.
- C. A runtime error is thrown in the thread "main".
- D. Execution terminates In the second catch statement, and caught an Exception is printed to the console.
- E. The code fails to compile because a throws keyword is required.
Answer: C
NEW QUESTION 86
Given: What is the result?
- A. Compilation fails due to an error in line n1
- B. Compilation fails due to an error at line n2
- C. 0
- D. Compilation fails due to an error at line n3
Answer: B
NEW QUESTION 87
Given: What is the result?
- A. An exception is thrown at runtime
- B. 10 20 30 40
- C. 0 0 30 40
- D. Compilation fails
Answer: B
NEW QUESTION 88
Given:
What is true about the class Wow?
- A. It does not compile because an abstract class cannot have instance variables.
- B. It does not compile because an abstract class must have a constructor with no arguments.
- C. It does not compile because an abstract class cannot have private methods.
- D. It does not compile because an abstract class must have at least one abstract method.
- E. It compiles without error.
Answer: E
NEW QUESTION 89
Given the code fragment:
Which three lines fail to compile?
- A. Line 8
- B. Line 9
- C. Line 7
- D. Line 12
- E. Line 10
- F. Line 11
Answer: C,D,E
NEW QUESTION 90
Given:
How many MarkList instances are created in memory at runtime?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 91
Given the code snippet from a compiled Java source file:
Which command-line arguments should you pass to the program to obtain the following output? Arg is 2
- A. java MyFile 0 1 2 3
- B. java MyFile 1 3 2 2
- C. java MyFile 2 2 2
- D. java MyFile 1 2 2 3 4
Answer: B
NEW QUESTION 92
Which two array initialization statements are valid? (Choose two.)
- A. int array[] = new int[] {1,2,3};
- B. int array[] = new int[3]; array = {1, 2, 3};
- C. int array[] = new int[3] {1, 2, 3};
- D. int array[] = new int[3]; array[0] = 1;
array[1] = 2;
array[2] = 3; - E. int array[3] = new int[] {1, 2, 3};
Answer: A,D
NEW QUESTION 93
Given the following array:
Which two code fragments, independently, print each element in this array? (Choose two.) A:
B:
C:
D:
E:
F:
- A. Option F
- B. Option D
- C. Option B
- D. Option A
- E. Option C
- F. Option E
Answer: C,F
NEW QUESTION 94
Given:
What is the result?
- A. 10 : 30 : 6
- B. 10 : 22 : 22
- C. 10 : 22 : 20
- D. 10 : 22 : 6
Answer: B
Explanation:
Explanation/Reference:
Explanation
NEW QUESTION 95
Given:
What is the result?
- A.
- B.
- C.
- D.
Answer: A
NEW QUESTION 96
Given the following code for the classes MyException and Test:
What is the result?
- A. A B
- B. A compile time error occurs at line n1
- C. A
- D. Either A or B
- E. B
Answer: E
NEW QUESTION 97
You are asked to create a method that accepts an array of integers and returns the highest value from that array.
Given the code fragment:
Which method signature do you use at line n1?
- A. final int findMax (int [] )
- B. static int findMax (int [] numbers)
- C. static int[] findMax (int max)
- D. public int findMax (int [] numbers)
Answer: B
NEW QUESTION 98
Given:
What is the result?
- A. They match They really match
- B. They really match
- C. Nothing Prints
- D. They match
- E. They really match They really match
Answer: B
Explanation:
The strings are not the same objects so the == comparison fails. See note #1 below.
As the value of the strings are the same equals is true. The equals method compares values for equality.
Note: #1 ==
Compares references, not values. The use of == with object references is generally limited to the following:
Comparing to see if a reference is null.
Comparing two enum values. This works because there is only one object for each enum constant.
You want to know if two references are to the same object.
NEW QUESTION 99
Given the code fragment:
What is the result?
- A. A B C Work done
- B. A Work done
- C. A B C D Work done
- D. Compilation fails
Answer: B
NEW QUESTION 100
Given the code fragment:
What is the result?
- A. A B C Work done
- B. A B C D Work done
- C. A Work done
- D. Compilation fails
Answer: B
Explanation:
NEW QUESTION 101
Which three are advantages of the Java exception mechanism?
- A. Improves the program structure because exceptions must be handled in the method in which they occurred
- B. Allows the creation of new exceptions that are tailored to the particular program being created
- C. Improves the program structure because the programmer can choose where to handle exceptions
- D. Improves the program structure because the error handling code is separated from the normal program function
- E. Provides a set of standard exceptions that covers all the possible errors
Answer: B,C,D
NEW QUESTION 102
Given:
What is the result?
- A. Hello Log 1:0
- B. Welcome Log 1:0
- C. Welcome Log 2:1
- D. Hello Log 2:1
Answer: C
NEW QUESTION 103
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