Oracle 1Z0-811 Online Practice Questions and Exam Preparation

Oracle 1Z0-811 Online Questions & Answers

• Question 41:

  Which statement is true about exception handling?

  A. At least one catch block must accompany a try statement.
  B. All statements in a try block are executed, even if an exception occurs in the middle of the try block.
  C. At least one statement in a try block must throw an exception.
  D. All catch blocks must be ordered from general to most specific.
  D. All catch blocks must be ordered from general to most specific.

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  Reference: https://www.javatpoint.com/multiple-catch-block-in-java

• Question 42:

  Given these class definitions:

  

  Which class or classes compile?

  A. only MyClassB, MyClassC, and MyClassD
  B. only MyClassB
  C. MyClassA, MyClassB, MyClassC, and MyClassD
  D. only MyClassB and MyClassD
  D. only MyClassB and MyClassD

• Question 43:

  Given:

  

  What is the result?

  A. 20
  B. 32
  C. A compilation error occurs.
  D. 21
  A. 20

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• Question 44:

  Given the code fragment:

  

  What is the result?

  A. Unknown issues. Invalid divisor.
  B. Unknown issues.
  C. Invalid divisor.
  D. A compilation error occurs.
  D. A compilation error occurs.

• Question 45:

  

  Identify three features of the Java programming language.

  A. distributed
  B. direct memory management
  C. multithreaded
  D. strongly typed
  E. dynamically typed
  A. distributed
  C. multithreaded
  E. dynamically typed

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  Reference: https://www.tutorialspoint.com/What-are-the-major-features-of-Java-programming

• Question 46:

  Given the code fragment:

  

  Which statement is true?

  A. The code results in a compilation error. To make it compile, insert at line n1: import java.lang.Math; import java.lang.Random;
  B. The code compiles successfully
  C. The code results in a compilation error. To make it compile, insert at line n1: import java.lang; import java.util;
  D. The code results in a compilation error. To make it compile, insert at line n1: import java.util.*;
  B. The code compiles successfully

• Question 47:

  Given the code fragment:

  

  Which statement, when inserted at line n1, enables the code to print 0 2 4 6 8 10?

  A. count = (count++) +1;
  B. count = count++;
  C. count =+ 2;
  D. count += 2;
  D. count += 2;

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• Question 48:

  Identify two valid data types for the operands of the addition (+) operator?

  A. string
  B. boolean
  C. numeric
  D. array
  A. string
  D. array

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  Reference: https://www.iitk.ac.in/esc101/05Aug/tutorial/java/nutsandbolts/arithmetic.html

• Question 49:

  Given the code fragment:

  

  What is the result?

  A. a memory address1 in hexadecimal number format a memory address2 in hexadecimal number format
  B. 10, 15 [10, 15]
  C. 0, 10, 15 [10, 15, null]
  D. a memory address in hexadecimal number format [10, 15]
  D. a memory address in hexadecimal number format [10, 15]

• Question 50:

  

  Given the code fragment:

  

  What is the result?

  A. pen pencil erasers paper
  B. paper pen pencil erasers
  C. A compilation error occurs.
  D. A runtime exception is thrown.
  D. A runtime exception is thrown.

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