A Gson is a json library for java, which is created by Google and it can be used to generate a JSON. By using Gson, we can generate JSON and convert JSON to java objects. We can call the fromJson() method of Gson class to convert a JSON object to 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 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