import javax.imageio.*; import java.awt.image.*; import java.awt.event.*; import java.awt.*; import java.security.spec.*; import java.security.*; import java.lang.management.*; import java.lang.ref.*; import java.lang.reflect.*; import java.net.*; import java.io.*; import javax.swing.table.*; import javax.swing.text.*; import javax.swing.event.*; import javax.swing.*; import java.util.concurrent.atomic.*; import java.util.concurrent.*; import java.util.regex.*; import java.util.List; import java.util.zip.*; import java.util.*; public class main { public static void main(String[] args) throws Exception { long vport = addToMultiPort("Hello Bot."); print("Hello Bot added to multi-port in VM " + getVMID() + " on virtual port " + vport + "!"); sendToLocalBot(getVMID() + "/" + vport, "what?"); } static String answer(String s) { return "hello!"; } static Object addToMultiPort_responder; static long addToMultiPort(String botName) { startMultiPort(); List ports = getMultiPorts(); if (ports.isEmpty()) fail("No multiports!"); if (ports.size() > 1) print("Multiple multi-ports. Using last one."); Object port = last(ports); return (Long) call(port, "addResponder", botName, addToMultiPort_responder = new Object() { public String answer(String s, List history) { String answer = (String) ( callOpt(getMainClass(), "answer", s, history)); if (answer != null) return answer; return (String) callOpt(getMainClass(), "answer", s); } }); } static String getVMID() { return (String) get(getJavaX(), "vmID"); } static String sendToLocalBot(String bot, String text, Object... args) { text = format3(text, args); DialogIO channel = findBot(bot); if (channel == null) fail(quote(bot) + " not found"); try { channel.readLine(); print(bot + "> " + text); channel.sendLine(text); String s = channel.readLine(); print(bot + "< " + s); return s; } catch (Throwable e) { e.printStackTrace(); return null; } finally { channel.close(); } } static String sendToLocalBot(int port, String text, Object... args) { text = format3(text, args); DialogIO channel = talkTo(port); try { channel.readLine(); print(port + "> " + text); channel.sendLine(text); String s = channel.readLine(); print(port + "< " + s); return s; } catch (Throwable e) { e.printStackTrace(); return null; } finally { if (channel != null) channel.close(); } } static void print() { System.out.println(); } static void print(Object o) { System.out.println(o); } static void print(long i) { System.out.println(i); } // start multi-port if none exists in current VM. static void startMultiPort() { // TODO: might start multiple if run concurrently... if (getMultiPorts().isEmpty()) callMain(hotwire("#1001672")); } static List getMultiPorts() { return (List) call(getJavaX(), "getMultiPorts"); } static String format3(String pat, Object... args) { if (args.length == 0) return pat; List tok = javaTokPlusPeriod(pat); int argidx = 0; for (int i = 1; i < tok.size(); i += 2) if (tok.get(i).equals("*")) tok.set(i, format3_formatArg(argidx < args.length ? args[argidx++] : "null")); return join(tok); } static String format3_formatArg(Object arg) { if (arg == null) return "null"; if (arg instanceof String) return quote((String) arg); return quote(structure(arg)); } static String quote(String s) { if (s == null) return "null"; return "\"" + s.replace("\\", "\\\\").replace("\"", "\\\"").replace("\r", "\\r").replace("\n", "\\n") + "\""; } static String quote(long l) { return quote("" + l); } static Map findBot_cache = new TreeMap(); static int findBot_timeout = 5000; static DialogIO findBot(String searchPattern) { String subBot = null; int i = searchPattern.indexOf('/'); if (i >= 0 && (isJavaIdentifier(searchPattern.substring(0, i)) || isInteger(searchPattern.substring(0, i)))) { subBot = searchPattern.substring(i+1); searchPattern = searchPattern.substring(0, i); if (!isInteger(searchPattern)) searchPattern = "Multi-Port at " + searchPattern + "."; } // assume it's a port if it's an integer if (isInteger(searchPattern)) return talkToSubBot(subBot, talkTo(parseInt(searchPattern))); Integer port = findBot_cache.get(searchPattern); if (port != null) try { DialogIO io = talkTo("localhost", port); io.waitForLine(/*findBot_timeout*/); // TODO: implement String line = io.readLineNoBlock(); if (indexOfIgnoreCase(line, searchPattern) == 0) { call(io, "pushback", line); // put hello string back in return talkToSubBot(subBot, io); } } catch (Exception e) { e.printStackTrace(); } for (ProgramScan.Program p : quickBotScan()) if (indexOfIgnoreCase(p.helloString, searchPattern) == 0) { // strict matching - start of hello string only, but case-insensitive findBot_cache.put(searchPattern, p.port); return talkToSubBot(subBot, talkTo("localhost", p.port)); } return null; } static Object callOpt(Object o, String method, Object... args) { try { if (o instanceof Class) { Method m = callOpt_findStaticMethod((Class) o, method, args, false); if (m == null) return null; m.setAccessible(true); return m.invoke(null, args); } else { Method m = callOpt_findMethod(o, method, args, false); if (m == null) return null; m.setAccessible(true); return m.invoke(o, args); } } catch (Exception e) { throw new RuntimeException(e); } } static Method callOpt_findStaticMethod(Class c, String method, Object[] args, boolean debug) { Class _c = c; while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (!m.getName().equals(method)) { if (debug) System.out.println("Method name mismatch: " + method); continue; } if ((m.getModifiers() & Modifier.STATIC) == 0 || !callOpt_checkArgs(m, args, debug)) continue; return m; } c = c.getSuperclass(); } return null; } static Method callOpt_findMethod(Object o, String method, Object[] args, boolean debug) { Class c = o.getClass(); while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (m.getName().equals(method) && callOpt_checkArgs(m, args, debug)) return m; } c = c.getSuperclass(); } return null; } private static boolean callOpt_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } static Class getMainClass() { try { return Class.forName("main"); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static abstract class DialogIO { abstract boolean isStillConnected(); abstract String readLineNoBlock(); abstract boolean waitForLine(); abstract void sendLine(String line); abstract boolean isLocalConnection(); abstract Socket getSocket(); abstract void close(); String readLine() { waitForLine(); return readLineNoBlock(); } String ask(String s, Object... args) { if (args.length != 0) s = format3(s, args); sendLine(s); return readLine(); } String askLoudly(String s, Object... args) { if (args.length != 0) s = format3(s, args); print("> " + s); sendLine(s); String answer = readLine(); print("< " + answer); return answer; } } static abstract class DialogHandler { abstract void run(DialogIO io); } // DialogIO static DialogIO talkTo(int port) { return talkTo("localhost", port); } static DialogIO talkTo(String ip, int port) { try { final Socket s = new Socket(ip, port); print("Talking to " + ip + ":" + port); final Writer w = new OutputStreamWriter(s.getOutputStream(), "UTF-8"); final BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream(), "UTF-8")); return new DialogIO() { String line; boolean buff; boolean isLocalConnection() { return s.getInetAddress().isLoopbackAddress(); } boolean isStillConnected() { return !(buff || s.isClosed()); } String readLineNoBlock() { String l = line; line = null; return l; } boolean waitForLine() { try { if (line != null) return true; //print("Readline"); line = in.readLine(); //print("Readline done: " + line); if (line == null) buff = true; return line != null; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} void sendLine(String line) { try { w.write(line + "\n"); w.flush(); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} void close() { try { s.close(); } catch (IOException e) { // whatever } } Socket getSocket() { return s; } void pushback(String l) { if (line != null) fail(); line = l; } }; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static A last(List l) { return l.isEmpty() ? null : l.get(l.size()-1); } static Class __javax; static Class getJavaX() { return __javax; } static Object call(Object o, String method, Object... args) { try { if (o instanceof Class) { Method m = call_findStaticMethod((Class) o, method, args, false); m.setAccessible(true); return m.invoke(null, args); } else { Method m = call_findMethod(o, method, args, false); m.setAccessible(true); return m.invoke(o, args); } } catch (Exception e) { throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e); } } static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) { Class _c = c; while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (!m.getName().equals(method)) { if (debug) System.out.println("Method name mismatch: " + method); continue; } if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug)) continue; return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + _c.getName()); } static Method call_findMethod(Object o, String method, Object[] args, boolean debug) { Class c = o.getClass(); while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (m.getName().equals(method) && call_checkArgs(m, args, debug)) return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName()); } private static boolean call_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } static RuntimeException fail() { throw new RuntimeException("fail"); } static RuntimeException fail(Object msg) { throw new RuntimeException(String.valueOf(msg)); } static Object get(Object o, String field) { if (o instanceof Class) return get((Class) o, field); try { Field f = get_findField(o.getClass(), field); f.setAccessible(true); return f.get(o); } catch (Exception e) { throw new RuntimeException(e); } } static Object get(Class c, String field) { try { Field f = get_findStaticField(c, field); f.setAccessible(true); return f.get(null); } catch (Exception e) { throw new RuntimeException(e); } } static Field get_findStaticField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0) return f; throw new RuntimeException("Static field '" + field + "' not found in " + c.getName()); } static Field get_findField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field)) return f; throw new RuntimeException("Field '" + field + "' not found in " + c.getName()); } static DialogIO talkToSubBot(final String subBot, final DialogIO io) { if (subBot == null) return io; return new DialogIO() { // delegate all but sendLine boolean isStillConnected() { return io.isStillConnected(); } String readLineNoBlock() { return io.readLineNoBlock(); } boolean waitForLine() { return io.waitForLine(); } boolean isLocalConnection() { return io.isLocalConnection(); } Socket getSocket() { return io.getSocket(); } void close() { io.close(); } void sendLine(String line) { io.sendLine(format3("please forward to bot *: *", subBot, line)); } }; } static Class include(String progID) { Class c = hotwire(progID); setOpt(c, "programID", getProgramID()); return c; } static int l(Object[] array) { return array == null ? 0 : array.length; } static int l(List list) { return list == null ? 0 : list.size(); } static int l(String s) { return s == null ? 0 : s.length(); } static class ProgramScan { static int threads = isWindows() ? 500 : 10; static int timeout = 5000; // hmm... static String ip = "127.0.0.1"; static int quickScanFrom = 10000, quickScanTo = 10999; static boolean verbose; static class Program { int port; String helloString; Program(int port, String helloString) { this.helloString = helloString; this.port = port;} } static List scan() { try { return scan(1, 65535); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static List scan(int fromPort, int toPort) { return scan(fromPort, toPort, new int[0]); } static List scan(int fromPort, int toPort, int[] preferredPorts) { try { Set preferredPortsSet = new HashSet(asList(preferredPorts)); String name = toPort < 10000 ? "bot" : "program"; final ExecutorService es = Executors.newFixedThreadPool(threads); if (verbose) print(firstToUpper(name) + "-scanning " + ip + " with timeout " + timeout + " ms in " + threads + " threads."); startTiming(); List> futures = new ArrayList>(); for (int port : preferredPorts) futures.add(checkPort(es, ip, port, timeout)); for (int port = fromPort; port <= toPort; port++) if (!preferredPortsSet.contains(port)) futures.add(checkPort(es, ip, port, timeout)); es.shutdown(); List programs = new ArrayList(); for (final Future f : futures) { Program p = f.get(); if (p != null) programs.add(p); } stopTiming(); if (verbose) print("Found " + programs.size() + " " + name + "(s) on " + ip); return programs; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static Future checkPort(final ExecutorService es, final String ip, final int port, final int timeout) { return es.submit(new Callable() { @Override public Program call() { try { Socket socket = new Socket(); socket.setSoTimeout(timeout); socket.connect(new InetSocketAddress(ip, port), timeout); if (verbose) print("Connected to " + ip + ":" + port); BufferedReader in = new BufferedReader( new InputStreamReader(socket.getInputStream(), "UTF-8")); String hello = in.readLine(); socket.close(); return new Program(port, hello); } catch (Exception ex) { return null; } } }); } static List quickScan() { return scan(quickScanFrom, quickScanTo); } static List quickBotScan() { return quickBotScan(new int[0]); } static List quickBotScan(int[] preferredPorts) { return scan(4990, 5999, preferredPorts); } } // ProgramScan static List quickBotScan() { return ProgramScan.quickBotScan(); } static List quickBotScan(int[] preferredPorts) { return ProgramScan.quickBotScan(preferredPorts); } static List quickBotScan(String searchPattern) { List l = new ArrayList(); for (ProgramScan.Program p : ProgramScan.quickBotScan()) if (indexOfIgnoreCase(p.helloString, searchPattern) == 0) l.add(p); return l; } static boolean isJavaIdentifier(String s) { if (s.length() == 0 || !Character.isJavaIdentifierStart(s.charAt(0))) return false; for (int i = 1; i < s.length(); i++) if (!Character.isJavaIdentifierPart(s.charAt(i))) return false; return true; } // extended over Class.isInstance() to handle primitive types static boolean isInstanceX(Class type, Object arg) { if (type == boolean.class) return arg instanceof Boolean; if (type == int.class) return arg instanceof Integer; if (type == long.class) return arg instanceof Long; if (type == float.class) return arg instanceof Float; if (type == short.class) return arg instanceof Short; if (type == char.class) return arg instanceof Character; if (type == byte.class) return arg instanceof Byte; return type.isInstance(arg); } static int parseInt(String s) { return Integer.parseInt(s); } // This is made for NL parsing. // It's javaTok extended with "..." token, "$n" and "#n" static List javaTokPlusPeriod(String s) { List tok = new ArrayList(); int l = s.length(); int i = 0; while (i < l) { int j = i; char c; String cc; // scan for whitespace while (j < l) { c = s.charAt(j); cc = s.substring(j, Math.min(j+2, l)); if (c == ' ' || c == '\t' || c == '\r' || c == '\n') ++j; else if (cc.equals("/*")) { do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/")); j = Math.min(j+2, l); } else if (cc.equals("//")) { do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0); } else break; } tok.add(s.substring(i, j)); i = j; if (i >= l) break; c = s.charAt(i); cc = s.substring(i, Math.min(i+2, l)); // scan for non-whitespace if (c == '\'' || c == '"') { char opener = c; ++j; while (j < l) { if (s.charAt(j) == opener) { ++j; break; } else if (s.charAt(j) == '\\' && j+1 < l) j += 2; else ++j; } } else if (Character.isJavaIdentifierStart(c)) do ++j; while (j < l && (Character.isJavaIdentifierPart(s.charAt(j)) || s.charAt(j) == '\'')); // for things like "this one's" else if (Character.isDigit(c)) do ++j; while (j < l && Character.isDigit(s.charAt(j))); else if (cc.equals("[[")) { do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]")); j = Math.min(j+2, l); } else if (s.substring(j, Math.min(j+3, l)).equals("...")) j += 3; else if (c == '$' || c == '#') do ++j; while (j < l && Character.isDigit(s.charAt(j))); else ++j; tok.add(s.substring(i, j)); i = j; } if ((tok.size() % 2) == 0) tok.add(""); return tok; } static void callMain(Object c, String... args) { call(c, "main", new Object[] {args}); } // compile JavaX source, load classes & return main class // src can be a snippet ID or actual source code // TODO: record injection? static Class hotwire(String src) { try { Class j = getJavaX(); synchronized(j) { // hopefully this goes well... List libraries = new ArrayList(); File srcDir = (File) call(j, "transpileMain", src, libraries); if (srcDir == null) fail("transpileMain returned null (src=" + quote(src) + ")"); Object androidContext = get(j, "androidContext"); if (androidContext != null) return (Class) call(j, "loadx2android", srcDir, src); File classesDir = (File) call(j, "TempDirMaker_make"); String javacOutput = (String) call(j, "compileJava", srcDir, libraries, classesDir); System.out.println(javacOutput); URL[] urls = new URL[libraries.size()+1]; urls[0] = classesDir.toURI().toURL(); for (int i = 0; i < libraries.size(); i++) urls[i+1] = libraries.get(i).toURI().toURL(); // make class loader URLClassLoader classLoader = new URLClassLoader(urls); // load & return main class Class theClass = classLoader.loadClass("main"); call(j, "setVars", theClass, isSnippetID(src) ? src: null); if (isSnippetID(src)) callOpt(j, "addInstance", src, theClass); return theClass; } } catch (Exception e) { throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e); } } public static String join(String glue, Iterable strings) { StringBuilder buf = new StringBuilder(); Iterator i = strings.iterator(); if (i.hasNext()) { buf.append(i.next()); while (i.hasNext()) buf.append(glue).append(i.next()); } return buf.toString(); } public static String join(String glue, String[] strings) { return join(glue, Arrays.asList(strings)); } public static String join(Iterable strings) { return join("", strings); } public static String join(String[] strings) { return join("", strings); } static boolean isInteger(String s) { return Pattern.matches("\\-?\\d+", s); } static String structure(Object o) { return structure(o, 0); } // leave to false, unless unstructure() breaks static boolean structure_allowShortening = false; static String structure(Object o, int stringSizeLimit) { if (o == null) return "null"; String name = o.getClass().getName(); StringBuilder buf = new StringBuilder(); if (o instanceof Collection) { // TODO: store the type (e.g. HashSet/TreeSet) for (Object x : (Collection) o) { if (buf.length() != 0) buf.append(", "); buf.append(structure(x, stringSizeLimit)); } return "[" + buf + "]"; } if (o instanceof Map) { for (Object e : ((Map) o).entrySet()) { if (buf.length() != 0) buf.append(", "); buf.append(structure(((Map.Entry) e).getKey(), stringSizeLimit)); buf.append("="); buf.append(structure(((Map.Entry) e).getValue(), stringSizeLimit)); } return "{" + buf + "}"; } if (o.getClass().isArray()) { int n = Array.getLength(o); for (int i = 0; i < n; i++) { if (buf.length() != 0) buf.append(", "); buf.append(structure(Array.get(o, i), stringSizeLimit)); } return "array{" + buf + "}"; } if (o instanceof String) return quote(stringSizeLimit != 0 ? shorten((String) o, stringSizeLimit) : (String) o); // Need more cases? This should cover all library classes... if (name.startsWith("java.") || name.startsWith("javax.")) return String.valueOf(o); String shortName = o.getClass().getName().replaceAll("^main\\$", ""); int numFields = 0; String fieldName = ""; if (shortName.equals("DynamicObject")) { shortName = (String) get(o, "className"); Map fieldValues = (Map) get(o, "fieldValues"); for (String _fieldName : fieldValues.keySet()) { fieldName = _fieldName; Object value = fieldValues.get(fieldName); if (value != null) { if (buf.length() != 0) buf.append(", "); buf.append(fieldName + "=" + structure(value, stringSizeLimit)); } ++numFields; } } else { // regular class // TODO: go to superclasses too Field[] fields = o.getClass().getDeclaredFields(); for (Field field : fields) { if ((field.getModifiers() & Modifier.STATIC) != 0) continue; Object value; try { field.setAccessible(true); value = field.get(o); } catch (Exception e) { value = "?"; } fieldName = field.getName(); // put special cases here... if (value != null) { if (buf.length() != 0) buf.append(", "); buf.append(fieldName + "=" + structure(value, stringSizeLimit)); } ++numFields; } } String b = buf.toString(); if (numFields == 1 && structure_allowShortening) b = b.replaceAll("^" + fieldName + "=", ""); // drop field name if only one String s = shortName; if (buf.length() != 0) s += "(" + b + ")"; return s; } // works on lists and strings and null static int indexOfIgnoreCase(Object a, Object b) { if (a == null) return -1; if (a instanceof String) { Matcher m = Pattern.compile((String) b, Pattern.CASE_INSENSITIVE + Pattern.LITERAL).matcher((String) a); if (m.find()) return m.start(); else return -1; } if (a instanceof List) { for (int i = 0; i < ((List) a).size(); i++) { Object o = ((List) a).get(i); if (o != null && ((String) o).equalsIgnoreCase((String) b)) return i; } return -1; } throw fail("Unknown type: " + a); } static String programID; static String getProgramID() { return programID; } static void setOpt(Object o, String field, Object value) { if (o instanceof Class) setOpt((Class) o, field, value); else try { Field f = setOpt_findField(o.getClass(), field); if (f == null) return; f.setAccessible(true); f.set(o, value); } catch (Exception e) { throw new RuntimeException(e); } } static void setOpt(Class c, String field, Object value) { try { Field f = setOpt_findStaticField(c, field); if (f == null) return; f.setAccessible(true); f.set(null, value); } catch (Exception e) { throw new RuntimeException(e); } } static Field setOpt_findField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field)) return f; return null; } static Field setOpt_findStaticField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0) return f; return null; } public static boolean isSnippetID(String s) { try { parseSnippetID(s); return true; } catch (RuntimeException e) { return false; } } static String shorten(String s, int max) { return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "..."; } static int max(int a, int b) { return Math.max(a, b); } static String programID() { return getProgramID(); } public static long parseSnippetID(String snippetID) { long id = Long.parseLong(shortenSnippetID(snippetID)); if (id == 0) fail("0 is not a snippet ID"); return id; } static String shortenSnippetID(String snippetID) { if (snippetID.startsWith("#")) snippetID = snippetID.substring(1); String httpBlaBla = "http://tinybrain.de/"; if (snippetID.startsWith(httpBlaBla)) snippetID = snippetID.substring(httpBlaBla.length()); return snippetID; } static String firstToUpper(String s) { if (s.length() == 0) return s; return Character.toUpperCase(s.charAt(0)) + s.substring(1); } static BufferedReader readLine_reader; static String readLine() { return (String) call(getJavaX(), "readLine"); } static ArrayList asList(A[] a) { return new ArrayList(Arrays.asList(a)); } static ArrayList asList(int[] a) { ArrayList l = new ArrayList(); for (int i : a) l.add(i); return l; } static ArrayList asList(Set s) { return new ArrayList(s); } public static boolean isWindows() { return System.getProperty("os.name").contains("Windows"); } static long startTiming_startTime; static void startTiming() { startTiming_startTime = now(); } static void stopTiming() { long end = now(); print("Time: " + (end-startTiming_startTime) + " ms"); } static long now_virtualTime; static long now() { return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis(); } }