code clean up

src/main/java/com/andromeda/araserver/util/MsSql.kt

@@ -9,21 +9,20 @@ class MsSql {
     private val link = "araresdb.database.windows.net"
     private val userName = "pholtor"
     private val password =  ""//System.getenv("PASSWORD");
-    var url = String.format(
+    private var url = String.format(
         "jdbc:sqlserver://%s:1433;database=%s;user=%s;password=%s;encrypt=true;" + "hostNameInCertificate=*.database.windows.net;loginTimeout=30;",
         link,
         "ara",
         userName,
         password
     )
     fun getSkills(phrase:String,fullDir:String, keyWord: KeyWord, parse: Parser): String {
-        Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
-        var connection: Connection? = null
+        Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver")
+        val connection: Connection = DriverManager.getConnection(url)
         val phrases = SortWords(keyWord,phrase).getTopics(parse)
         println(phrases.size)
         var link = ""
         println(password)
-        connection = DriverManager.getConnection(url)
         val statement = connection.createStatement()
         val selectSql = "SELECT id, link, hotWord from skills"
         val resultSet = statement.executeQuery(selectSql)