Oracle 1Z0-811 Online Practice Questions and Exam Preparation

Oracle 1Z0-811 Online Questions & Answers

• Question 51:

  Given:

  

  Which statement is true about the main method?

  A. It can be a non-static method.
  B. Its parameter can be of type Integer [].
  C. It cannot be defined in a non-public class.
  D. It cannot be invoked by its name.
  D. It cannot be invoked by its name.

• Question 52:

  Given the code fragment:

  

  What is the result?

  A. 25.67
  B. 25.00
  C. 25.7
  D. 26
  A. 25.67

• Question 53:

  Given the code fragment:

  

  What is the output?

  A. 8
  B. 3
  D. A compilation error occurs.
  C

  ---

  

• Question 54:

  Given the code fragment:

  

  Which code fragment can be inserted at line n1 to enable the code to compile?

  A. new int num[];
  B. int[] num;
  C. int[10] num;
  D. int num[10];
  B. int[] num;

• Question 55:

  Given the code fragment:

  

  Which code fragment, when inserted at line n1, enables the code to print one?

  A. char var = `1';
  B. String var = "1";
  C. int var = 1;
  D. String var = 1;
  B. String var = "1";

  ---

  

• Question 56:

  Given the classes:

  

  Which two modifications, independently, enable the Salad.java file to compile?

  A. Replace line n1 with import fruits.Apple.getApple();
  B. Replace line n1 with import fruits.Apple;
  C. Replace line n1 with import fruits;
  D. Replace line n2 with fruits.Apple apple = new Apple ();
  E. Replace line n2 with fruits.Apple apple = new fruits.Apple ();
  A. Replace line n1 with import fruits.Apple.getApple();
  D. Replace line n2 with fruits.Apple apple = new Apple ();

• Question 57:

  Given the code fragment:

  

  Which code fragment, when inserted at line n1, enables it to print Rita is 14 years old?

  A. System.out.println("%s is %d years old" +name+age);
  B. System.out.println("%s is %n years old" name, age);
  C. System.out.printf("%s is %d years old", name, age);
  D. System.out.printf("%s is %n years old", name, age);
  C. System.out.printf("%s is %d years old", name, age);

  ---

  

• Question 58:

  What is the meaning of "write once, run anywhere" in Java?

  A. Java programs are designed to run only in web browsers and, thus, can run wherever there is a browser.
  B. It is a marketing statement because Java programs must be compiled for a specific platform in order to run.
  C. Java programs can run on any Java Virtual Machine without being recompiled.
  D. Java programs, after being compiled, can run on any platform or device even without a Java Virtual Machine.
  C. Java programs can run on any Java Virtual Machine without being recompiled.

  ---

  Reference: https://www.geeksforgeeks.org/why-is-java-write-once-and-run-anywhere/

• Question 59:

  Identify two Java reserved words.

  A. array
  B. true
  C. this
  D. exception
  E. string
  B. true
  C. this

  ---

  Reference: https://www.computerhope.com/jargon/j/java_reserved_words.htm

• Question 60:

  What does import java.io* mean?

  A. Only the io class is imported.
  B. All classes in the io package are imported.
  C. All classes whose names start with io are imported.
  D. All classes in the io package and the subpackages of io packages, if any, are imported.
  D. All classes in the io package and the subpackages of io packages, if any, are imported.