CODE EXAMPLE FOR JAVA

how to put comments on swagger documentation in spring boot

@ApiOperation(value = "Get a product by id", notes = "Returns a product as per the id")
@ApiResponses(value = {
  @ApiResponse(code = 200, message = "Successfully retrieved"),
  @ApiResponse(code = 404, message = "Not found - The product was not found")
})
@GetMapping("/products/{id}")
public ResponseEntity<Product> getProduct(@PathVariable("id") @ApiParam(name = "id", value = "Product id", example = "1") Long id) {
    //retrieval logic
    return ResponseEntity.ok(new Product(1, "Product 1", "$21.99"));
}