Convert JSON object to Java object using Gson library in Java?

Gson is a java json library created by Google that can be used to generate JSON. By using Gson we can generate JSON and convert JSON to java object. We can call the fromJson() method of the Gson class to convert the JSON object into a Java object.

Syntax

public <T> fromJson(java.lang.String json, java.lang.Class<T> classOfT) throws JsonSyntaxException

Example

import com.google.gson.*;
public class JSONtoJavaObjTest {
   public static void main(String[] args) {
      Gson gson = new Gson();
      Emp emp = gson.fromJson("{'name':'raja','age':25}", Emp.class);
      System.out.println(emp.getName());
      System.out.println(emp.getAge());
   }
}
// Emp class<strong>
</strong>class Emp {
   String name;
   int age;
   public Emp() {
      super();
   }
   public Emp(String name, int age) {
      super();
      this.name = name;
      this.age = age;
   }
   public String getName() {
      return name;
   }
   public void setName(String name) {
      this.name = name;
   }
   public int getAge() {
      return age;
   }
   
   public void setAge(int age) {
      this.age = age;
   }
}

Output

raja
25

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