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trunk/src/com/jpexs/helpers/Helper.java

@@ -738,6 +738,20 @@ public class Helper {
         }
     }
     
+    /*
+     * Get the extension of a file.
+     */  
+    public static String getExtension(File f) {
+        String ext = null;
+        String s = f.getName();
+        int i = s.lastIndexOf('.');
+
+        if (i > 0 &&  i < s.length() - 1) {
+            ext = s.substring(i).toLowerCase();
+        }
+        return ext;
+    }
+
     public static void appendTimeoutComment(GraphTextWriter writer, int timeout) {
         writer.appendNoHilight("/*").newLine();
         writer.appendNoHilight(" * ").appendNoHilight(AppStrings.translate("decompilationError")).newLine();