[Solved] Identify the error in this Spring Boot controller method that tries to return a 201 Created status:public ResponseEntity createItem() { return new ResponseEntity("Item created", 201); } | Spring Boot

Spring Boot - Request and Response Handling

Identify the error in this Spring Boot controller method that tries to return a 201 Created status:

public ResponseEntity createItem() {
    return new ResponseEntity<>("Item created", 201);
}

ACannot return ResponseEntity with a String body

BUsing int 201 instead of HttpStatus enum

CResponseEntity constructor requires three arguments

DMissing @ResponseBody annotation

Step-by-Step Solution

Solution:

Step 1: Check ResponseEntity constructor parameters
The constructor expects a body and an HttpStatus enum, not an int.
Step 2: Identify the incorrect use of status code
Passing 201 as int causes a compilation error; should use HttpStatus.CREATED instead.
Final Answer:
Using int 201 instead of HttpStatus enum -> Option B
Quick Check:
Use HttpStatus.CREATED, not int 201 [OK]

Quick Trick: Use HttpStatus enum, not int, for status codes [OK]

Common Mistakes:

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