Avoid deprecated scala.App

src/main/scala/slick/examples/codegen/Example.scala

@@ -15,22 +15,25 @@ import scala.language.postfixOps
 import slick.examples.codegen.Tables.*
 import slick.examples.codegen.Tables.profile.api.*
 
-object Example extends App {
+object Example {
   // connection info for a pre-populated throw-away, in-memory db for this demo, which is freshly initialized on every
   // run
   val url = "jdbc:h2:mem:test;INIT=runscript from 'src/main/sql/create.sql'"
-  val db  = Database.forURL(url, driver = "org.h2.Driver")
-
-  // Using generated code. Our Build.sbt makes sure they are generated before compilation.
-  val q = Companies
-    .join(Computers)
-    .on(_.id === _.manufacturerId)
-    .map { case (co, cp) => (co.name, cp.name) }
-
-  Await.result(
-    db.run(q.result).map { result =>
-      println(result.groupMap(_._1)(_._2).mkString("\n"))
-    },
-    60 seconds
-  )
+
+  def main(args: Array[String]): Unit = {
+    val db = Database.forURL(url, driver = "org.h2.Driver")
+
+    // Using generated code. Our Build.sbt makes sure they are generated before compilation.
+    val q = Companies
+      .join(Computers)
+      .on(_.id === _.manufacturerId)
+      .map { case (co, cp) => (co.name, cp.name) }
+
+    Await.result(
+      db.run(q.result).map { result =>
+        println(result.groupMap(_._1)(_._2).mkString("\n"))
+      },
+      60 seconds
+    )
+  }
 }