Android Question I need to open and use an existing SQL database file which is established by a tool like DB Browser

I am new here

I'm going to ask a very junior question

I need to open and use an existing SQL database file which is established by a tool like DB Browser for SQLite.

The file nail.db is in my PC and is created by using DB Browser for SQLite.

1. According to SQLITE Tutorial, I execute step by step and finish the JDBC Driver installation.

1) Download SQLite JDBC Driver sqlite-jdbc-3.8.11.2.jar (success)

2) Download NetBean and create a new project then add SQLite JDBC Driver JAR file to a Java project. (success in every step) (I don’t know the reason to process these steps)

3) Copy sqlite-jdbc-3.8.11.2.jar to C:\Program Files (x86)\Java

4) Add Library SQL through windows - Libraries manager

2. I write a test program to check the very first step whether the file nail.db can be initialized well. But I am not luck. It failed in the compile stage.

The B4A source file, SQLite Database file, my PC's system info and the error message are as attached.

3. This is the first step I have to walk over. Please give me a hand. Thanks a lot.