Java 11 Interview Questions
Top 10 Java 11 Interview Questions for Success
Java 11 is the latest version of the popular programming language Java, and as such, it is an important topic for an interview. Some possible questions that may come up in an interview about Java 11 include its new features and improvements, such as the introduction of new APIs, the implementation of local-variable type inference, and the removal of deprecated features. Interviewers may also ask about the benefits of upgrading to Java 11, its compatibility with previous versions, and the process of migrating applications to this version. Additionally, questions about security updates, performance enhancements, and Java's overall role in the current programming landscape are also likely to be discussed.
To Download Our Brochure: https://www.justacademy.co/download-brochure-for-free
Message us for more information: +91 9987184296
qa
1 - What is the main difference between Java 11 and previous versions of Java?
Java 11 introduced the concept of modular programming with the introduction of the Java Platform Module System (JPMS). This allows developers to create and manage modules, making their code more scalable and organized. Additionally, Java 11 also improved performance and security, and removed deprecated APIs.
2) What is the concept of Modules in Java 11?
Modules in Java 11 are self-contained collections of code and data that can be easily reused and managed. They offer better encapsulation of code and allow developers to define and enforce dependencies between different modules.
3) How is memory management different in Java 11?
Java 11 introduced a new garbage collector called Z Garbage Collector (ZGC), which offers improved pformance and scalability in managing large heaps of memory. It also supports concurrent garbage collection, allowing applications to continue running while garbage collection is in progress.
4) How does the new Java HTTP client in Java 11 improve performance?
The new HTTP client in Java 11 is a lightweight and asynchronous client that supports HTTP/2, providing improved performance and reduced latency in communication with web services. It also allows for easier customization and support for HTTP/2 server push.
5) What is the Local Variable Type Inference feature in Java 11?
Local Variable Type Inference allows developers to declare and assign variables without explicitly specifying their data type. This simplifies coding and improves readability, especially for complex data types.
6) How does Java 11 improve security?
Java 11 has enhanced security by disabling the Java Browser Plugin by default, reducing the risk of vulnerabilities and malicious attacks. It also supports TLS 1.3, providing improved encryption and security for network communications.
7) What is the new Collection interface in Java 11?
Java 11 introduced the new Collection interface, which is a sub-interface of the Iterable interface and provides a default implementation of the toArray() method. It also supports the static method of() to create an unmodifiable collection.
8) How does Java 11 support modern web development?
Java 11 offers support for Nest-based access control, allowing for better interaction and communication between different web frameworks and applications. It also supports the convenient use of HTTP/2 server push, enhancing the user experience.
9) What are the improvements in Javadoc in Java 11?
Java 11 has improved Javadoc by supporting HTML5 markup, allowing developers to add more formatting and media elements in their documentation. It also supports the ability to generate Javadocs for multiple classes in a single command.
10) How does Java 11 improve the AWT and Swing libraries?
Java 11 offers various improvements in the AWT and Swing libraries, such as enhanced high DPI support, improved rendering performance, and customization options for the color and font of GUI elements.
11) What is the JShell feature in Java 11?
JShell is a new tool introduced in Java 11 that provides an interactive environment for developers to test and experiment with small code snippets. It allows for quick code prototyping and testing without the need for a fully developed application.
12) What is the procedure for updating from Java 8 to Java 11?
The process of updating from Java 8 to Java 11 involves testing and adjusting the code for any changes in deprecated APIs, updating maven dependencies, and ensuring compatibility with the new Java version.
To Download Our Brochure: Click Here
Message us for more information: +91 9987184296
13) What is JDK Flight Recorder in Java 11?
JDK Flight Recorder is a tool included in Java 11 that allows for continuous monitoring and profiling of Java applications without causing a performance impact. It provides insights into memory, I/O, and CPU usage, allowing for better analysis and optimization of application performance.
14) How does Java 11 support multi-threading?
Java 11 offers support for parallel GC and the use of the VarHandles API, which allows for atomic updates and manipulation of data across multiple threads. This improves performance and reduces the need for synchronization in multi-threaded applications.
15) What are the benefits of using Java 11 over previous versions?
Java 11 offers various benefits, including improved performance and security, better support for modular programming, enhanced web development capabilities, and tools for continuous monitoring and profiling of applications. It also offers better readability and simplification of coding with features like Local Variable Type Inference.
Browse our course links : https://www.justacademy.co/all-courses
To Join our FREE DEMO Session: Click Here
Contact Us for more info:
- Message us on Whatsapp: +91 9987184296
- Email id: info@justacademy.co
- Java Collections Coding Interview Questions And Answers For Experienced
- Sap Mm Interview Questions Accenture
- Microservices In Java Interview Questions
- Sap Mm Consultant Interview Questions
- Java Interview Questions And Answers For 2 Years Experiencere
