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Free Math Worksheets — Over 100k free practice problems on Khan Academy

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• Prepare for the 2020 AP®︎ Statistics Exam
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• Matrix transformations
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Histology MCQ PDF Book | Medical Histology MCQ Questions and Answers PDF

Quiz questions chapter 1-29 & practice tests with answers key (histology textbook notes, mcqs & study guide), publisher description.

The Histology Multiple Choice Questions (MCQ Quiz) with Answers PDF (Histology MCQ PDF Download): Quiz Questions Chapter 1-29 & Practice Tests with Answers Key (Medical Histology Textbook MCQs, Notes & Study Guide) includes revision guide for problem solving with hundreds of solved MCQs. Histology MCQ with Answers PDF book covers basic concepts, analytical and practical assessment tests. "Histology MCQ" PDF book helps to practice test questions from exam prep notes. The Histology MCQs with Answers PDF eBook includes revision guide with verbal, quantitative, and analytical past papers, solved MCQs. 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Histology Multiple Choice Questions (MCQ) with Answers PDF digital edition eBook, a study guide with textbook chapters' tests for NEET/Jobs/Entry Level competitive exam. Histology Practice Tests Chapter 1-29 PDF covers problem solving exam tests from life sciences textbook and practical eBook chapter-wise as: Chapter 1: Blood MCQ Chapter 2: Bones MCQ Chapter 3: Cartilages MCQ Chapter 4: Cell MCQ Chapter 5: Cerebrum, Cerebellum and Spinal Cord MCQ Chapter 6: Circulatory System MCQ Chapter 7: Connective Tissues MCQ Chapter 8: Connective Tissues Proper MCQ Chapter 9: Digestive System MCQ Chapter 10: Ear MCQ Chapter 11: Endocrine System MCQ Chapter 12: Epithelium MCQ Chapter 13: Eye MCQ Chapter 14: Eye: Ciliary Body MCQ Chapter 15: Eye: Fibrous Coat MCQ Chapter 16: Eye: Iris MCQ Chapter 17: Eye: Lens and Conjunctiva MCQ Chapter 18: Eye: Lens, Accessory Structure of Eye MCQ Chapter 19: Eye: Retina MCQ Chapter 20: Eye: Vascular Coat MCQ Chapter 21: Female Reproductive System MCQ Chapter 22: Glands MCQ Chapter 23: Immune System and Lymphoid Organs MCQ Chapter 24: Integumentary System MCQ Chapter 25: Male Reproductive System MCQ Chapter 26: Muscular Tissue MCQ Chapter 27: Nervous Tissue MCQ Chapter 28: Respiratory System MCQ Chapter 29: Urinary System MCQ Practice "Blood MCQ" PDF, book's chapter 1 test to solve MCQ questions: Erythrocytes, leukocytes, plasma, and platelets. 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Practice "Eye: IRIS MCQ" PDF, book's chapter 16 test to solve MCQ questions: Iris, iris stroma and layers of iris. Practice "Eye: Lens and Conjunctiva MCQ" PDF, book's chapter 17 test to solve MCQ questions: Lens capsule, sub-capsular epithelium, and lens substance. Practice "Eye: Lens, Accessory Structure of Eye MCQ" PDF, book's chapter 18 test to solve MCQ questions: Conjunctiva, eyelids, and lacrimal glands. Practice "Eye: Retina MCQ" PDF, book's chapter 19 test to solve MCQ questions: Elements of neural retina, layers of retina, and pigment epithelium. Practice "Eye: Vascular Coat MCQ" PDF, book's chapter 20 test to solve MCQ questions: Choroid. Practice "Female Reproductive System MCQ" PDF, book's chapter 21 test to solve MCQ questions: Corpus luteum, external genitalia, ovaries: ovarian follicles, uterine tube, and uterus. Practice "Glands MCQ" PDF, book's chapter 22 test to solve MCQ questions: Classification of glands, classification on basis of morphology, classification on basis of secretory products, classification on mode of secretion, and histological structure of exocrine glands. Practice "Immune System and Lymphoid Organs MCQ" PDF, book's chapter 23 test to solve MCQ questions: Immune system, and lymphoid tissues. Practice "Integumentary System MCQ" PDF, book's chapter 24 test to solve MCQ questions: Dermis, glands of skin, hair, nails, and skin. Practice "Male Reproductive System MCQ" PDF, book's chapter 25 test to solve MCQ questions: accessory glands of male reproductive system, corpus luteum, external genitalia, male genital duct, ovaries: Ovarian follicles, testes, testes: seminiferous epithelium, testes: seminiferous epithelium, spermatozoa, testes: seminiferous tubules, uterine tube, and uterus. Practice "Muscular Tissue MCQ" PDF, book's chapter 26 test to solve MCQ questions: Cardiac muscles, skeletal muscles, and smooth muscles. Practice "Nervous Tissue MCQ" PDF, book's chapter 27 test to solve MCQ questions: Ganglia and neuroglia, grey-matter and white-matter, meninges and dura-mater, nerve fibers, nerve termination, neurons and types, and synapses. Practice "Respiratory System MCQ" PDF, book's chapter 28 test to solve MCQ questions: Nasopharynx and larynx, respiratory bronchioles, respiratory epithelium, nasal cavity, trachea, and lungs. Practice "Urinary System MCQ" PDF, book's chapter 29 test to solve MCQ questions: Kidney, urethra, ureter, and urinary bladder.

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• Java Arrays
• Java Strings
• Java Collection
• Java 8 Tutorial
• Java Multithreading
• Java Exception Handling
• Java Programs
• Java Project
• Java Collections Interview
• Java Interview Questions
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• Java Interview Questions and Answers
• Java Collections Interview Questions and Answers
• Core Java Interview Questions For Freshers
• Sapient Interview Experience for Java Developer 2020
• DataLabs Interview Experience for Fresher | Java Questions
• Commonly Asked Java Programming Interview Questions | Set 2
• JP Morgan Chase Interview Questions
• BNY Mellon Interview Experience For SDE (On-Campus) 2023
• Scoreme Solutions Interview Experience for Java Developer
• Paytm Interview Experience For Java Backend
• Adobe Interview Experience | Set 34 (For MTS-1)
• Veritas Software Solutions Interview Experience for Java Developer
• HSBC Interview Experience for SDE-2(Java Dev) exp. 4 yrs
• REI Systems Interview Experience Java (3+ years for salesforce dev position)
• Wolters Kluwer Interview Experience for APSE 2023
• Zuora Interview Experience for SDE | On-Campus 2021
• Qloron Interview Experience for Java Developer
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• Top 30 Java Design Patterns Interview Question

Top 30 Java 8 Interview Questions and Answers for 2024

Java 8 introduced a host of powerful features that have significantly enhanced the Java programming language . Introducing new features such as Lambda Expressions , Stream API , Functional Interfaces , the new Date and Time API , and more.

As a result, Java 8 skills are highly sought after by employers in the tech industry. To help you prepare for your next interview, we have compiled a list of commonly asked Java 8 Interview Questions and provided detailed answers. Whether you are a seasoned Java developer or just starting, this article will help you showcase your knowledge and expertise in Java 8.

But before going towards the interview questions for Java 8 let’s have a quick brief in Java 8.

• What is Java 8?

Oracle Corporation announced Java 8 in March 2014, as a major update to the Java programming language and platform. It introduced several key innovations and enhancements, such as lambda expressions , the Stream API , Functional Interfaces, the java.time package for date and time manipulation, and the Optional class for handling potentially null values. Java 8 was designed to improve developer productivity , code readability , and performance, making it a watershed moment in the Java language’s evolution.

Java 8 Interview Questions and Answers

In the upcoming section, resources are crafted for Freshers and Experienced Professionals. These Interview Questions for Java 8 offer you valuable insight and solutions. So, let’s dive into the world of Java 8 and uncover key concepts that will sharpen your skills and ace your interviews!

Table of Content

Java 8 Interview Questions for Freshers

Java 8 interview questions for experienced, java 8 mcqs.

Here in this section we have compiled some Java 8 basic questions.

1. What features do you know or use in Java 8?

Here you can list down all the key features of Java 8 like,

• Functional Interface
• Lambda Expression
• CompletableFuture 
• Java DateTime API
• Method Reference
• Comparable and Comparator
• Optional Class
• Date/Time API

For more details, refer to this article: Java 8 Features – Complete Tutorial

2. What is Lambda Expression?

Lambda Expression basically shows an instance of functional interface in other words you could say that it provides a clear and concise way to represent a method of performing functional interface using an expression Lambda Expressions have been added in Java 8 and provide the functionality below.

• This enables to treat any functionality as a method argument, and code as data.
• A Function that can be created independently of any class.
• Lambda expression can be moved around like an object and it can be executed on demand.

For more details, refer to this article:  Lambda Expressions in Java 8

3. What is Stream API in Java 8?

Stream API is introduced in Java 8 and it is used to process collections of objects with the functional style of coding using the lambda expression. So to understand what is stream API you must have knowledge of both lambda and functional interface.

For more details, refer to this article:  Java 8 Stream

4. What is Functional Interface in Java 8?

An interface with only one abstract method is known as a functional interface but there is no restriction, in a functional interface you can have n number of default methods and static methods.

For more details, refer to this article:  Functional Interfaces in Java

5. What is Stream in Java 8?

A stream is a sequence of objects that helps different methods that can be pipelined to produce the desired outcome. The features of Java Stream are:

• Stream is not a data structure rather it takes input from Collections, Arrays, I/O channels.
• Stream doesn’t change the original data structure they only provide the result as per the pipeline methods.

For more details, refer to this article:  Stream In Java

6. When to use map and flatMap?

• Example: Multiply all the elements of a list by 3 and return the updated list.
• Example: Get the first Character of all the String present in a List of Strings and return the result in form of a stream.

For more details, refer to this article:  Difference Between map() And flatMap() In Java Stream

7. Can we extend a functional interface from another functional interface?

Yes, we can extend but if you extend that your functional interface will not act as a functional interface because it will find multiple abstract methods inside that. You may observe the thing by demonstrating a sample code in your local Java IDE.

8. What are the advantages of Lambda Expression?

• Avoid writing anonymous implementation
• Saves a lot of code
• Code is directly readable without interpretation

9. Differentiate Between Comparable and Comparator in Java.

Java provides two interfaces for configuring objects using class data members:

Comparable Interface:

Comparable object can be compared to another objects. To compare its instances, the class itself must implement the java.lang.Comparable interface. Consider a Movie class that has members like rating, name, and year. Suppose we want to sort the list of Movies by release year. We can use the Comparable interface with the Movie class, and override the compareTo() method of the Comparable interface.

Comparator Interface:

Unlike Comparable, Comparator is external to the element type we are comparing. There is a special category. We create several different classes (using Comparator) to compare different members. The Collections class has a second sort() method and accepts a Comparator. The sort() method calls compare() to sort the objects.

For more details, refer to this article:  Comparable vs Comparator in Java

10. Tell a few functional interfaces which are already there before Java 8?

To answer this question you can tell the below interfaces

• Comparator 

11. What are all functional interfaces introduced in Java 8?

12. tell a few stream methods you used in your project.

Note : The interviewer might ask you to explain some methods in detail.

13. What are the disadvantages of Lambda expression?

• Hard to use without an IDE
• Complex to debug

14. What is Optional Class in Java 8?

In Java 8, Optional Class is a container object.

• The Optional class used to represent a value that may be present or may not be.
• This class helps in avoiding null pointer exceptions by providing methods to check the presence of a value before accessing it.
• This helps null values handling more effectively.

For more details, refer to this article: Java 8 Optional Class

15. Provide Some Optional Methods in Java 8.

Some Optional methods are described below.

• of : It creates an Optional with a non-null value.
• ofNullable : It creates an Optional with a given nullable value.
• empty : It creates an empty Optional.
• isPresent : This checks whether the Optional contains a non-null value.
• get : It gets the value if present, otherwise it throws an exception i.e. NoSuchElementException.
• orElse : It returns the value if present, otherwise returns the specified default value.
• orElseGet : It returns the value if present, otherwise it returns the result of invoking the supplier function.
• orElseThrow : It returns the value if present, otherwise it throws an exception produced by the provided supplier.
• map : It applies a function to the value if present and return a new Optional with the result, or return an empty Optional if no value is present.
• filter : It applies a predicate to the value if present and return an Optional with the value if it matches the predicate, otherwise return an empty Optional.

16. What is Date-Time API in Java 8?

The Date-Time API in Java 8 provides a set of classes for date-time conversions, including timelines and advanced programming.

• It imports the java.time package, and this package contains LocalDate, LocalTime, LocalDateTime, ZonedDateTime, and other classes.
• This API provides better robustness, consistency and thread safety compared to legacy Date and Calendar classes.

For more details, refer to this article: New Date-Time API in Java 8

17. What is Optional equals() method in Java?

In Java, the equals() method of the Optional class is used to compare two Optional objects for equality.

• It returns true if both the Optional objects contains the same value.
• And, it returns false if both does not contain the same value.

Illustration :

For more details, refer to this article: Optional equals() method in Java with Examples

18. What is Default Methods In Java 8?

In Java 8, Default methods allows interfaces to have method implementations. This means that interfaces can contain concrete methods along with the abstract methods. The Default methods are defined using the default keyword.

Illustration:

For more details, refer to this article: Default Methods In Java 8

19. How are functional interfaces and Lambda Expressions related?

Functional interfaces in Java are interfaces that only contains one abstract method.

• Lambda expressions provide a simple way to implement functional interfaces.
• Lambda expressions can be used wherever functional interfaces are needed.
• This allows us to write expressive and concise code.

20. What is ArrayList forEach() method in Java?

In Java, the forEach() method is used to iterate over each ArrayList element.

• It performs specified operation for each element.
• It simplifies iteration and shortens the code.
• It takes a Consumer as a parameter, which represents the action to be performed on each element.

For more details, refer to this article: ArrayList forEach() method in Java

Once you have gained confidence after solving the basic questions, let’s increase the level of questions. Here in this section, we have listed more complex Java 8 questions.

21. How to find duplicate elements in a Stream in Java?

22. count occurrence of a given character in a string using stream api in java., 23. how to get slice of a stream in java, 24. how to reverse elements of a parallel stream in java, 25. write a program to iterate over a stream with indices in java 8., 26. what is completablefuture.

CompletableFuture is just an extension of the future object introduced in JDK5.

• In Java, CompletableFuture is used for asynchronous programming.
• Asynchronous programming is a method of writing non-blocking code by executing a task on a separate thread than the main application thread.
• And, notifies the main thread of its progress, completion, or failure.

27. Why CompletableFuture why not Future?

• Future cannot be manually completed.
• Multiple Futures can’t be chained together.
• We can’t combine multiple Futures together.
• No exception handling.

28. What is method reference in Java 8?

Method reference is a concise way to use a lambda expression for calling a method directly. It simplifies the code by providing a shorthand notation. are four types of method references that are listed below:

• Static Method Reference
• Instance Method Reference of a particular object
• Referencing an instance method of an unspecified object belonging to a specific class.
• Constructor Reference.

For more details, refer to this article:  Method References in Java with examples

29. What is MetaSpace in Java 8?

In Java 8, Metaspace stores class metadata in native memory, separate from the heap. It can dynamically expand, overcoming size limitations, and enhances garbage collection efficiency, auto-tuning, and metadata distribution.

• It is used by the JVM to store metadata about loaded classes and methods.
• It replaces the PermGen space, offering dynamic allocation, separate memory management from the heap, and improved garbage collection, thereby mitigating PermGen space errors.

30. What is Java class dependency analyser in Java 8?

The Java Class Dependency Analyzer in Java 8 is a tool for analyzing dependencies between classes in a Java application.

• It helps in understanding the structure and interactions within a codebase.
• Useful for analyzing dependencies and managing code complexity.
• It can provide insights into potential refactoring or optimizations.
• Typically visualized through diagrams or dependency graphs for easier comprehension.

Once you have explored all the Java 8 interview questions, try this section to upscale you Java 8 skill more. Here we have listed some important Java 8 MCQ to boost your Java knowledge.

Q. What is a key feature introduced in Java 8?

A. Lambda Expressions

B. Annotations

C. Generics

D. Checked Exceptions

Answer: A) Lambda Expressions

Q. Which interface in Java 8 is used to represent a sequence of elements?

Answer: C. Stream

Q. Which functional interface is used to represent a function that accepts two arguments and produces a result?

A. Function

B. BiConsumer

C. BiFunction

D. Predicate

Answer: C. BiFunction

Q. What does the forEach method do in Java 8 Stream API?

A. Filters the stream elements

B. Maps the stream elements

C. Applies an action to each element of the stream

D. Terminates the stream

Answer: C. Applies an action to each element of the stream

Q. Which method is used to merge two streams in Java 8 Stream API?

A. concat()

D. combine()

Answer: A. concat()

Q. What does the peek method do in Java 8 Stream API?

A. Removes elements from the stream

B. Modifies elements in the stream

C. Applies an action to each element of the stream without changing its contents

Answer: C. Applies an action to each element of the stream without changing its contents

Q. Which collector is used to collect elements into an immutable list in Java 8 Stream API?

A. toList()

D. toImmutableList()

Answer: D. toImmutableList()

Q. What is the purpose of the Optional class introduced in Java 8?

A. To handle checked exceptions

B. To represent an object that may or may not contain a value

C. To perform mathematical operations

D. To represent an immutable list

Answer: B. To represent an object that may or may not contain a value

Q. Which interface is used to sort objects in Java 8?

A. Comparator

B. Sortable

D. Comparable

Answer: A. Comparator

Q. What does the reduce method do in Java 8 Stream API?

A. Filters the stream elements based on a predicate

B. Terminates the stream and produces a single result by iteratively applying a binary operation

C. Maps each element of the stream to a new value

D. Concatenates the stream elements into a single string

Answer: B. Terminates the stream and produces a single result by iteratively applying a binary operation

In closing, preparing for Java 8 Interview Questions is critical for any Java developer. Java 8 introduced fantastic features like Lambda Expressions and the Stream API , which make code more efficient and expressive. You’ll be well-prepared to demonstrate your abilities in any interview after reviewing the important questions and answers we discussed.

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