Kindly respond to each of the questions provided here, giving particular consideration to the important notes section.

• Generate a readme.md file in the root directory of your Git repository to address all the questions provided. Ensure the file is well-organized, correctly formatted, easily readable, and understandable.
• Endeavor to solve the questions without external sources. However, if necessary, you may refer to online resources. If you do, articulate the answers in your own words.
• Use Java code within distinct packages in the IntelliJ project available in your repository for answering questions (except where explicitly stated otherwise).
• Follow the prescribed naming conventions for packages and classes (coe.unosquare.interprep.<-module name->.question<-Question Number-> e.g.: coe.unosquare.interprep.oop.question1) and Java's standard naming for classes, respectively (e.g: coe.unosquare.interprep.oop.question1.Car.class)
• Utilize any tool of your choice for drawings or diagrams, and export them as images for inclusion in the readme file.

Below you will find the questions categorized in sections.

• What are the advantages of object-oriented programming?
• For instance, when have you used interfaces and an example of a scenario where you've used abstract classes?
• How do you inherit a class in Java and other inheritance mechanisms different from 'extends' (clue: interfaces)
• What is the difference between Composition and Aggregation?
• What is the purpose of the keyword 'static'?
• Can I create a class inside another class? If so, how can I create an instance of an object of that class?
• How to avoid inheritance and an example of why I wouldn't want a class to be inherited?
• Use of the 'abstract' reserved word:
• What is Polymorphism, an example of a scenario where you've used it
• What is the use of 'override,' and 'overload' with examples as well
• What is the difference between class and abstract class?

• Are Strings native? Why? NOTE: Instead of coding, explain this with a draw or a diagram
• What operations can I perform with a String?
• Can I transform an integer into a String? How?
• How can I concatenate (join) two Strings?
• Is String a mutable or immutable class? Why? NOTE: Use another class to make the difference noticeable
• What other classes can I use for String handling?
• How do I add elements to a StringBuilder?
• What is the difference between StringBuilder and StringBuffer?
• Describe a real scenario where you've used StringBuilder and another where you've used StringBuffer.
• What steps do I have to follow if I need to convert a StringBuilder to a String?
• How can I determine if one String is equal to another?
• What is the purpose of the 'hashCode' method?

• Key keywords in Exception Handling in Java (try, catch, finally, throw, and throws)
• Difference between throw and throws
• Describe the use of finally:
• Can I use throw without using try-catch?
• Can I use finally without catch?
• Can I use try without catch?
• Explain catch block hierarchy in Java and examples of real scenarios where you've used them
• In terms of the best practices when using exception handling. Which exception should come first? Why?

• Examples of Collections you have used and how they are used. Include how to initialize it and what are its main operations (add, delete, etc)
• Describe the advantages and disadvantages of using an array. NOTE: Instead of coding, explain this with a draw or a diagram
• Describe the advantages and disadvantages of using a list. NOTE: Instead of coding, explain this with a draw or a diagram
• Describe the advantages and disadvantages of using a set. NOTE: Instead of coding, explain this with a draw or a diagram
• Describe the advantages and disadvantages of using a map. NOTE: Instead of coding, explain this with a draw or a diagram
• Explain the difference between an array and a list
• Explain the difference between an array and a map
• Explain the difference between a list and a map
• Explain the difference between a list and a set
• Can I receive objects of different types in an array? How?
• Can I receive objects of different types in a list? How?
• Can I receive objects of different types in a map? How?
• Can I receive objects of different types in a set? How?
• Can I have nulls in an array? If so, how and how many?
• Can I have nulls in a list? If so, how and how many?
• Can I have null in a map? If so, how and how many?
• In terms of performance, if I have to store 3000 trillions of numbers, what collection should I use and why?

• How can I create a thread in Java?
• How can I run one or more threads in Java?
• What is the purpose of the Executor Framework?
• Mention different implementations where you've used Threads or the Executor Framework.
• What is the purpose of 'synchronize'?
• What is a race condition? How is it resolved? NOTE: You should ALSO explain it with a draw or a diagram
• What is a deadlock? How is it resolved? NOTE: You should ALSO explain it with a draw or a diagram
• Difference between Runnable and Callable

• Describe all the steps needed to create a service based on a Customer table in Java and which operations would you use.
• What are the HTTP methods (verbs)?
• Differences between put, post, and patch.
• What's the main use of Headers?
• Mentioned 5 properties on a Header?
• What's the purpose of a Path? How it's composed?
• What's the meaning of a 200 response code?
• What's the meaning of a 400 response code?
• What's the meaning of a 500 response code?
• Mention 5 different 400 response codes and explain them

• Advantages of using Spring Framework.
• Difference between Spring Framework and Spring Boot.
• Explain what's IoC. NOTE: No code, instead use a draw or a diagram.
• Describe what the application context is.
• Explain what a bean is and its properties (at least 5)
• Describe all the different scopes of a bean?
• What is Dependency Injection (DI)?
• Explain the different types of DI.
• Explain what's Autowiring in Spring?
• Explain what's Component in Spring?
• What's the main use the @Primary annotation?
• What's the main use of the @Qualifier annotation?
• Explain what AOP is.