Sorted:

What type is BigDecimal in Java?

The usage of main in Python.

How do you represent a space character in the C language when outputting it?

Several ways to define arrays in Java

How can I check the port number on a Linux server?

How can a string be defined in the C language?

What are the library functions in the C language?

How to input characters in the C language?

How does Windows start up nginx?

Where is the uninstall program for the Win11 system located?