How to save List to json/xml(Doesn't matter which) file?

Question

C++ / C#

You need to save the List to a file.

public class House
    {
        public int FarmId;
       public string FarmName;
        public bool FarmHave;

    }

Answer 1

Mark a class as serializable AND save
[System.Serializable]

string json = JsonUtility.ToJson(classData);
System.IO.File.WriteAllText("json.json", json);