[Oct-2023] 1z0-811 exam torrent Oracle study guide
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The Java Foundations Exam consists of multiple-choice questions that cover various topics related to Java programming, including data types, operators, control structures, classes, objects, and interfaces. It also covers topics like exception handling, lambda expressions, and functional interfaces. 1z0-811 exam is suitable for beginners to intermediate-level Java developers who want to assess their knowledge of the language and its core concepts.
NEW QUESTION # 43
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, after being compiled, can run on any platform or device even without a Java Virtual Machine.
- D. Java programs can run on any Java Virtual Machine without being recompiled.
Answer: D
NEW QUESTION # 44
Given the code
What is the result?
- A. num = 0
- B. num = 100
- C. The program executes indefinitely.
- D. num = 99
Answer: D
NEW QUESTION # 45
Which package would you import to use the Random class?
- A. java.math
- B. java.io
- C. java.util
- D. java.lang
Answer: C
NEW QUESTION # 46
Given:
What is the result?
- A. 100
100 - B. 100
200 - C. A compilation error occurs at line n2.
- D. A compilation error occurs at line n1.
Answer: A
NEW QUESTION # 47
Which two Java reserved words are used to implement encapsulation?
- A. final
- B. static
- C. private
- D. public
- E. extends
Answer: C,D
NEW QUESTION # 48
Which two statements are true about the Java Runtime Environment (JRE)?
- A. It contains the JDK and Java APIs.
- B. It interprets bytecode stored in a .class file.
- C. It is responsible for garbage collection.
- D. You must install the JRE to compile a .java file.
- E. It is platform independent.
Answer: B,E
NEW QUESTION # 49
Given the code fragment:
Which statement is true?
- A. A compilation error occurs at line 7.
- B. The code compiles without errors.
- C. A compilation error occurs at line 3.
- D. A compilation error occurs at line 5.
Answer: B
NEW QUESTION # 50
Which statement is true about a mutator method?
- A. It can be used to assign data to instance members.
- B. It must be declared private.
- C. It returns mutated instance members.
- D. It replaces the default constructor.
Answer: C
NEW QUESTION # 51
Identify three features of the Java programming language.
- A. distributed
- B. strongly typed
- C. dynamically typed
- D. multithreaded
- E. direct memory management
Answer: A,C,D
NEW QUESTION # 52
Given:
What is the result?
- A. [null:null]
- B. [:null]
- C. [null:-]
- D. [ : ]
Answer: C
NEW QUESTION # 53
Given the code fragment:
At which line does a compilation error occur?
- A. line 7
- B. lines 5 and 7
- C. line 5
- D. lines 6 and 8
Answer: C
NEW QUESTION # 54
Which statement is true about primitive variables?
- A. They can be compared with the == operator.
- B. They can be compared with the equals method only.
- C. They cannot be compared.
- D. They can be compared with the compareTo method only.
Answer: B
NEW QUESTION # 55
Given the code fragment:
Which code fragment, when inserted at line n1, enables the code to print Java Programming:1?
- A. System.out.println(name + ":" + count);
- B. System.out.println(c.name + ":" + Course.count);
- C. System.out.println(c.name + ":" + count);
- D. System.out.println(Course.name + ":" + c.count);
Answer: B
NEW QUESTION # 56
Identify three advantages of object-oriented programming.
- A. information sharing
- B. information hiding
- C. modularity
- D. code reuse
- E. separation of state and behavior
Answer: B,C,D
NEW QUESTION # 57
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 += 2;
- C. count =+ 2;
- D. count = count++;
Answer: B
NEW QUESTION # 58
Given the code fragment:
What is the result?
- A. 25.67
- B. 0
- C. 25.7
- D. 25.00
Answer: A
NEW QUESTION # 59
Given:
What is the result?
- A. The program compiles and nothing is printed.
- B. Iteration plus an increasing number is printed 99 times.
- C. Iteration plus an increasing number is printed 100 times.
- D. An error occurs during compilation.
Answer: D
NEW QUESTION # 60
Given the contents of Student.java:
Which statement is true?
- A. The commands:
javac Course.java
javac Student.java
java Course
java Student "Richard William" Java
are used to print Richard William is studying Java. - B. The commands:
javac Student.java
java Student Richard William Java
are used to print Richard William is studying Java. - C. The commands:
javac Student.java
java Student Richard William Java
throw an error about a missing Course.class file. - D. The commands:
javac Student.java
java Student "Richard William" Java
are used to print Richard William is studying Java.
Answer: C
NEW QUESTION # 61
Which statement is true about exception handling?
- A. All catch blocks must be ordered from general to most specific.
- B. At least one catch block must accompany a try statement.
- C. All statements in a try block are executed, even if an exception occurs in the middle of the try block.
- D. At least one statement in a try block must throw an exception.
Answer: A
NEW QUESTION # 62
Given:
What is the result?
- A. 0
- B. 1
- C. A compilation error occurs.
- D. 2
Answer: C
NEW QUESTION # 63
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