I am new to using Android Studio, and now I want to create some buttons which can increase the value of my Firebase Realtime Database whenever I click the button. However, I want to make the value keep increasing whenever…
I wanted to use JDK-11 on my intellij. So I changed java boot runtime following these instructions. Now my Intellij is crashing without opening. I am using MAC. Crash Report. Closest I have found on internet with my issue is…
Im working on a project for school with FireStore. I need to add 4 fields individually to my FireStore db. They are called "player1", "player2", "player3" and "player4". When the first person runs the code, "player1" is added. When the…
Step 1. Installed java on my WSL by running sudo apt install default-jdk when I run java --version it gives me openjdk 11.0.18 2023-01-17 Step 2. Installed VcXsrv X Server on my Windows 10. Configured it so I'm sure that…
I am learning JavaFX using VScode, but I am continuously getting an error message stating, "Error: JavaFX runtime components are missing and are required to run this application", despite having entered vmArgs in launch.json and adding JavaFX to the referenced…
Good afternoon, When I run Tomcat Server in Spring Tool Suite, it tells me that it has been run successfully, but it does not show me the local host 8080 page. So the server works for me, but it doesn't…
I need to convert a Date in java: Date date=calendar.getTime(); // yyyy-MM-dd I want to turn it into a String "yyyy-MM-dd HH:mm:ss" so i can insert it into a table in MySQL. Any ideea?
I have a JSON file with a fluctuating depth and each node (different depth). So it's built like a General tree : And here is a sample json (not the real one but a mock file but the structure remains…
Suppose we have a block of JAVA code which is iterating through the JSON file. JAVAfile // getting phoneNumbers JSONArray ja = (JSONArray) jo.get("phoneNumbers");//jo is the JSONObject of the given JSON //Iterating through phonenumbers Iterator itr2 = ja.iterator(); while (itr2.hasNext())…
static class DataObject { private String access; private String foo; private Int age; } to {"access" : "value","foo":"value","age":"value"} without using Gson or jackson. just vanilla java Is there a more simpler way ?