Get action

parse.java

while ((line = br.readLine()) != null) {
                // process the line.
                
                Pattern pattern = Pattern.compile(".*_([a-zA-Z]+)_.*");
                Matcher matcher = pattern.matcher(line);
                if (matcher.find())
                {
                    // Action = If, Tiger, After, .....
                    String action = matcher.group(1);
                    System.out.println(action);
                }
            }