продолжение рефакторинга. создал предка для класса current

src/Common_old/Utils/Utils.java

@@ -558,15 +558,12 @@ public class Utils {
         }
         //---
         for (int i = 1; i < letters.length; ++i) {
-            if (!(CommonUtils.isEnglishLetter(letters[i]) || letters[i] == '_' || CommonUtils.isDigit(String.valueOf(letters[i])))) {
+            if (!(CommonUtils.isEnglishLetter(letters[i]) || letters[i] == '_' || CommonUtils.isIntegerValue(String.valueOf(letters[i])))) {
                 return false;
             }
         }
         return true;
     }
-    public static int fromBoolean(boolean flag) {
-        return flag ? 1 : 0;
-    }
     public static void keepNewFiles(File directory, int count) throws Exception {
         if (count > 0) {
             File[] old_ = directory.listFiles(pathname -> pathname.isFile());