Работа с JSON на Java

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;

@JsonAutoDetect
public class AlexeiIvanych {
    public String name;
    public int age;
    public String profession;
    AlexeiIvanych(){}

public static void main(String[] args) throws IOException {

/*AlexeiIvanych AlexeiIvanych = new AlexeiIvanych();
        AlexeiIvanych.name = "Alexei Ivanych";
        AlexeiIvanych.age = 17;
        AlexeiIvanych.profession = "1C Guru";

ObjectMapper objectMapper = new ObjectMapper();

StringWriter string = new StringWriter();

objectMapper.writeValue(string, AlexeiIvanych);

String result = string.toString();
        System.out.println(result);
        */

String jsonString = "{\"name\":\"alexei Ivanych\",\"age\":17,\"profession\":\"1C Guru\"}";
        StringReader stringReader = new StringReader(jsonString);

ObjectMapper mapper = new ObjectMapper();

AlexeiIvanych alexeiIvanych = mapper.readValue(stringReader, AlexeiIvanych.class);

System.out.println(alexeiIvanych);

}
}

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