What problems or difficulties have you encountered in your early work?

The following difficulties often arise when first working with Java:

• Understanding the basics of object-oriented programming (classes, objects, inheritance).
• Parsing syntax and program structure.
• Working with exceptions and error handling.
• Understanding collections and generics.
• Setting up the environment and understanding build tools (Maven, Gradle).

For example, beginners often find it difficult to understand how to properly use interfaces and abstract classes for designing flexible applications.