Let's talk about Java.
Let's talk about multithreading.
Let's talk about thread security.
Here is an example of how a deadlock occurs.
What is the difference between equals () and =? For example.
What is hashcode used.
What is the difference between hashtable and hashmap.
Is there any problem with multithreading during development? For example.
Is there any experience in optimizing performance during development? For example.
Overload and override.
Let's talk about checkedexception and unchekedexception.
Reverse a one-way linked list and think about how to implement it. It requires as little memory as possible.
Find the minimum data in a stack, but it cannot destroy the stack. Think about how to implement it and require as little memory as possible.
Multithreading involves several implementation methods. What is the difference.
What technical problems do you encounter in the project and how do you solve them.
The design patterns used in the project.
Let's talk about the decoration mode.
Why did you leave.
Let's talk about the plan for the last five years.