modify DatabaseConnection.java

database.sql

@@ -1,6 +1,5 @@
 
 
-
 CREATE TABLE users(
       id SERIAL PRIMARY KEY,
       username VARCHAR(50) NOT NULL UNIQUE,

src/main/java/dev/database/DatabaseConnection.java

@@ -6,7 +6,7 @@ import java.sql.SQLException;
 
 public class DatabaseConnection {
 
-    private static final String URL = "jdbc:postgresql://localhost:5432/restaurant_db"; // DB Server
+    private static final String URL = "jdbc:postgresql://localhost:5432/postgres"; // DB Server
 
     private static final String USER = "postgres"; // Your Username