import com.google.gson.Gson;

public class JavaToJsonExample {
    public static void main(String[] args) {
        Person person = new Person();
        person.setName("Ali");
        person.setAge(30);

        Gson gson = new Gson();
        String jsonString = gson.toJson(person);
        System.out.println("JSON: " + jsonString);
    }
}

class Person {
    private String name;
    private int age;

    // Getters and Setters
    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;
    }
}