
Explore the StringBuilder class in Java to create a mutable string, compare it with String and StringBuffer, and learn practical usage with constructors and append for efficient string manipulation.
Explore the differences between string, stringbuffer, and stringbuilder in Java. Strings are immutable; stringbuffer is thread-safe, stringbuilder is not, and stringbuilder is more efficient, introduced in 1.5 after 1.0.
Learn to use the Java 8 Stream API filter with a lambda predicate to select even numbers from a list and reduce them to a sum.
Learn how to sum numbers in Java 8 streams using Integer.sum and method references, replacing lambdas with a pre-built sum method, and collect results from a list.
Explore dependency injection in Spring by wiring a user class into the main application via the application context, using component annotations and scans to resolve object creation.
Explore post mapping and get mapping annotations in Spring Boot, including sending data via post requests, form inputs, and running the application to see printed results.
Use get mapping annotations to fetch data from a server side, create a controller method, build a user model list, and render the show user jsp with expression language.
Build a REST API in Spring Boot by creating a user controller, wiring a repository, and returning a list of users with findAll, tested via Postman at /user.
Learn to create a Spring Boot controller, configure the Spring Boot Starter Web dependency in pom.xml, and map /home to return hello world via a REST controller.
How about Quickly Revising all the Important Java Concepts in about few Hours before an interview?
Preparing for Java Interview is tricky. You would need to get a good understanding of new features and revise concepts you used in your preparation. This course helps you Prepare for Java Interview with hands-on code examples covering Java Interview Questions and Answers on varied range of topics listed below.
The Course will cover all the popular Core Java interview questions, String
Handling interview questions, java 8 interview questions, java multithreading interview
questions, java OOPs interview questions, java exception handling interview
questions, collections interview questions, and some frequently asked java coding
interview questions.
Go through all the questions to enhance your chances of performing well in the
interviews. The questions will revolve around the basic, core & advanced
fundamentals of Java.
This course covers questions for Every level of java developers but mostly Beginners and Intermediate
We will Cover the topics.
1. Language Fundamentals
2. Operators & Assignments
3. Flow-Control.
4. Declarations and Access Modifiers
5. OOPs(Object Oriented Programming)
6. Inner classes
7. ENUM
8. JVM Architecture, Garbage Collection
9. File I/O NIO
10. Serialization and Deserialization
11. Collections
12. Generics
13. Concurrent Collections
14. Multi Threading And Advanced Multithreading
15. java lang package
16. Exception Handling
18. functional programming in java using lambda and streams
19. Design Principles
20. Design Patterns
And Last but not least
We will keep updating this course by adding more questions. You also can suggest us any question you think should get covered. We will definitely add that in upcoming upgrade.
Hope this clear all your doubts and set the expectations right.
Happy Learning