Java: comments /* * * */

Question

Quick question, it there a difference between:

/* This is first line of comments

This is the second line

And this will be the last line

*/

and:

 /*This is first line of comments

*This is the second line

*And this will be the last line 

*/

in java language?

The source I learned from teaches the second form, but I found out the fist one works too.

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Answer 1

There is no difference at all as far as the compiler is concerned. It's just a matter of what looks pretty and what documentation generators rely upon. That last point is surprisingly important: particularly in Java. (Javadoc relies upon well-defined comment forms.) /* defines the start of a comment, and you'll stay in "comment mode" until the first */ is reached.

So further /* are allowed within a comment block (but they don't nest so you still only need one closing */). And the single line comment // within a comment block is benign: //*/ will close a comment block.

Java: comments /* * * */

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