To use , you do not download a single file; instead, you add the Jackson Databind library to your project via a dependency manager like Maven or Gradle .
Jackson needs a default (no-argument) constructor to instantiate your classes during deserialization. download com.fasterxml.jackson.databind.objectmapper
SerializationFeature.INDENT_OUTPUT : Set to true for "pretty-printing" JSON. To use , you do not download a