Which of the following is the correct way to serialize a Java object to a JSON string using Jackson's ObjectMapper?

easy📝 Syntax Q12 of 15

Spring Boot - Request and Response Handling

AobjectMapper.readValue(object, String.class);

BobjectMapper.writeValueAsString(object);

CobjectMapper.toJson(object);

DobjectMapper.serialize(object);

Step-by-Step Solution

Solution:

Step 1: Identify the serialization method in ObjectMapper
The method to convert an object to JSON string is writeValueAsString.
Step 2: Check other options for correctness
readValue is for deserialization, toJson and serialize are not valid ObjectMapper methods.
Final Answer:
objectMapper.writeValueAsString(object); -> Option B
Quick Check:
Serialize with writeValueAsString() [OK]

Quick Trick: Use writeValueAsString() to convert object to JSON string [OK]

Common Mistakes:

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