[Solved] Consider this Spring Boot controller method:@DeleteMapping("/products/{productId}") public ResponseEntity... }What is the output when a DELETE request is sent to /products/abc123? | Spring Boot

Spring Boot - REST Controllers

Consider this Spring Boot controller method:

@DeleteMapping("/products/{productId}")
public ResponseEntity removeProduct(@PathVariable String productId) {
    return ResponseEntity.ok("Deleted product " + productId);
}

What is the output when a DELETE request is sent to /products/abc123?

A"Deleted product null"

B"Deleted product abc123"

C"Deleted product productId"

D404 Not Found

Step-by-Step Solution

Solution:

Step 1: Understand the method behavior
The method returns a string concatenating "Deleted product " with the productId path variable.
Step 2: Substitute the path variable value
For DELETE /products/abc123, productId = "abc123", so the response is "Deleted product abc123".
Final Answer:
"Deleted product abc123" -> Option B
Quick Check:
PathVariable string used in response = "Deleted product abc123" [OK]

Quick Trick: PathVariable strings appear exactly as in URL [OK]

Common Mistakes:

Returning variable name instead of value
Assuming null value
Expecting 404 without reason

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More Spring Boot Quizzes

Consider this Spring Boot controller method:

Step 1: Understand the method behavior

Step 2: Substitute the path variable value

Final Answer:

Quick Check:

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