What is the difference between multi-line comment /* */ and documentation comment /** */ in Java?

Question

/* this
is
a
multi-line
comment */
/**
this
is
an
important
multi-line
comment
*/

Answer 1

Comments like /** .. */ are for javadoc tool (included in Java installation) which automatic generate html documentation for your codes with this comments as headers for next class or methods.
like
https://pasteboard.co/IsBtgbe.png
or
https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/lang/String.html

Answer 2

Standard multi-line comments won't show up in Javadoc.

Answer 3

About static method to java?

Answer 4

Use // text when you want to commenta single line of code. Use /* text */when you want to comment multiple lines of code. Use /** documentation */ when you would want to add some info about the program that can be used for automatic generation of program documentation.

Answer 5

multi-line is to use multiple lines. And documentation comment is to attach some file by the comment.