adding codes

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

@@ -1,15 +1,16 @@
 package dev.database;
 
 import java.sql.Connection;
+import java.sql.DriverManager;
 import java.sql.SQLException;
 
 public class DatabaseConnection {
+    private static final String URL = "jdbc:postgresql://localhost:5432/restaurant_db";
 
-    private static final String URL = "jdbc:postgresql://localhost:5432/restaurant_db"; // DB Server
+    private static final String USER = "avasanatkar";
 
-    private static final String USER = "postgres"; // Your Username
+    private static final String PASSWORD = "";
 
-    private static final String PASSWORD = "password"; // Your Password
 
     private DatabaseConnection() {
 
@@ -21,7 +22,9 @@ public class DatabaseConnection {
         // TODO:
         // Return a valid PostgreSQL connection
 
-        return null;
+       // return null;
+        return DriverManager.getConnection(URL, USER, PASSWORD);
+
     }
 
 }