$/**$

$*$ TODO: return a ResponseEntity containing a response of type "Bad Request", as well as a String in the body

$*$ that says "Bad Request"

$*/$

$$ @GetMapping$("/$lab$1")$

$$ public ResponseEntity lab$1()\{$

$$ return null;

$\}$

$/**$

$*$ TODO: return a ResponseEntity containing a response of type "Resource Created", setting the "content$-$length"

$*$ header to a value of $"100",$ and responding with a body containing the Sample object received in the request

$*$ body.

$*/$

$$ @GetMapping$("/$lab$2")$

$$ public ResponseEntity lab$2($@RequestBody Sample sample$)\{$

$$ return null;

$\}$