Psst.
Wanna make a comment on something?
It’s pretty easy.
Start it with a double slash, //, and anything after that is ignored by the compiler, and you can write whatever you want.
Oh?
You want to say more?
Well, then start your novel with a slash asterisk, /*, and then end it with an asterisk slash, */.
// Single line comment
/* Multi-line
comment
*/
Listing 13-1
Single-line and multiline comments
Oh, and wanna know a cool trick?
If you put a comment before a line of code or wrap it as a multiline comment, you will prevent the program from seeing the code.
That’s called commenting out your code.
Ooooh! And one more thing. There is a shortcut in IntelliJ to do that. Just select the code you want to comment out and press Control-/ or Command-/.
Neat, right?