I am working on a JavaFX Maven project in VSCode and am trying to import Gson into one of my classes and it’s not letting me. VSCode gives me a "The type com.google.gson.Gson is not accessible" error and refuses to let me work with Gson. The dependency has been added into my pom.xml file and… Read More Cannot import Gson into my JavaFX Maven project

I’d like to limit the permitted integer values for a class property, in a way that after serialisation to Json (with gson) the value would be represented as a number and not as a string. class Car( @Expose val color: Color = Color.RED, @Expose val seats: Seats = Seats.FIVE // Using an enum class so… Read More Limit permitted integer values for serialised class property with Kotlin

My data class: data class HallData( var name:String, var mobile:String, var isAddInfoChecked:Boolean, var isFanDetailChecked:Boolean, var fanNumber:String, var isPompDetailChecked:Boolean, var pompNumber:String, var isHeaterDetailChecked:Boolean, var heaterNumber:String, var isCircularFanDetailChecked:Boolean, var circularFanNumber:String ) UserAdapter: class UserAdapter(val c: Context, val userList: MutableList<HallData>) : RecyclerView.Adapter<UserAdapter.UserViewHolder>() { inner class UserViewHolder(val v: View) : RecyclerView.ViewHolder(v) { var name: TextView var mbNum: TextView var… Read More (Kotlin) com.google.gson.internal.LinkedTreeMap cannot be cast to com.example.phonetest2.model.HallData

Giving a string, I’d like to format it as json string with Gson. What I expect is from "email" to get "{"email" : "$email"}" I can obviously do fun serializeUserEmail(email: String): String { return "{\"email\" : \"$email\"}" } and this is what I’m currently doing, and of course I could also create an "Email" class… Read More Android Kotlin: Serialize string to json string with Gson

I have encountered a problem when I want to fetch my data to recyclerview using Java, and resulting in the problem: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 2 path $ My API Response : [ { "id": "1", "type": "Barang Elektronik", "payment_method": "Cash", "price": "500000", "date": "2023-07-11 00:00:00", "detail": "Charger… Read More How to fix Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 2 path $

I am self-learned beginner in Java coding so please be understanding. I am writing REST api app that at some point expects to get such response from server: [ { "success": { "/config/linkbutton": true } } ] Normally I would create specific object with field named after my expected response and I would map this… Read More How to map JSON object with slashes in field name?

I have a a JSON string as : { "personId": "person1", "userId": "user1" "details": [ { "homeId": "home1", "expireAt": "2023-03-08T15:17:04.506Z" } ] } And @Data @Builder public class MyResponse { private String personId; private String userId; private List<Details> details; } @Data @Builder public class Details { private String homeId; private Instant expireAt; } I am… Read More How to deserialize String to java Instant

I want to convert JSON response to Map what is the best approach to get the desired output using GSON library. I try this and I’m getting only the ArrayList value. Map<String, Object> map = gson.fromJson(response, HashMap.class); ArrayList responseOptions = (ArrayList) map.get("data"); output: [{language=Java, value=8}, {language=Ruby, value=7}, {language=Python, value=7}] Sample JSON Response { "data":[ {… Read More Convert JSON to MAP using GSON library