java类java.io.InputStreamReader的实例源码

/**
 * This method checks if the given file is a Zip file containing one entry (in case of file
 * extension .zip). If this is the case, a reader based on a ZipInputStream for this entry is
 * returned. Otherwise, this method checks if the file has the extension .gz. If this applies, a
 * gzipped stream reader is returned. Otherwise, this method just returns a BufferedReader for
 * the given file (file was not zipped at all).
 */
public static BufferedReader getReader(File file, Charset encoding) throws IOException {
    // handle zip files if necessary
    if (file.getAbsolutePath().endsWith(".zip")) {
        try (ZipFile zipFile = new ZipFile(file)) {
            if (zipFile.size() == 0) {
                throw new IOException("Input of Zip file failed: the file archive does not contain any entries.");
            }
            if (zipFile.size() > 1) {
                throw new IOException("Input of Zip file failed: the file archive contains more than one entry.");
            }
            Enumeration<? extends ZipEntry> entries = zipFile.entries();
            InputStream zipIn = zipFile.getInputStream(entries.nextElement());
            return new BufferedReader(new InputStreamReader(zipIn, encoding));
        }
    } else if (file.getAbsolutePath().endsWith(".gz")) {
        return new BufferedReader(new InputStreamReader(new GZIPInputStream(new FileInputStream(file)), encoding));
    } else {
        return new BufferedReader(new InputStreamReader(new FileInputStream(file), encoding));
    }
}

public static JSONObject read(final String url) throws Exception {
    Exception exception = null;
    for (int i = 0; i < 3; i++) {
        Expectant.delay((i + 1) * API_DELAY_MS);
        try (InputStream is = new URL(url).openStream()) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
            String jsonText = readWhole(reader);
            JSONObject json = new JSONObject(jsonText);
            return json;
        } catch (Exception ex) {
            System.err.println("Failed read url: " + url
                    + " try #" + (i + 1) + "\n" + ex.getMessage());
            exception = ex;
        }
    }

    throw exception;
}

public static boolean[] findPatternsInLogs(DockerContainer dockerContainer, Pattern... patterns) throws IOException {
    boolean found[] = new boolean[patterns.length];
    dockerContainer.dockerLogs(istream -> {
        try (BufferedReader br = new BufferedReader(new InputStreamReader(istream, "UTF-8"))) {
            br.lines().forEach(line -> {
                for (int i = 0; i < patterns.length; ++i) {
                    Pattern pattern = patterns[i];
                    if (pattern.matcher(line).find()) {
                        LOGGER.info("Found pattern {} on line '{}'", pattern, LogCleaner.cleanLine(line));
                        found[i] = true;
                    }
                }
            });
        }
    });
    return found;
}

/**
 * 
 * 
 * @param coordstream
 *            InputStream
 * @param bufferSize
 *            int
 * @return result String
 * @throws IOException
 */
public static String readStream(InputStream stream, int bufferSize, String encoding) throws IOException {
    StringWriter sw = new StringWriter();
    int bytesRead;

    if (!Helper.isEmpty(encoding)) {
        BufferedReader br = new BufferedReader(new InputStreamReader(stream, encoding), bufferSize);
        String str;
        while ((str = br.readLine()) != null) {
            sw.write(str);
        }
    } else {
        byte[] buffer = new byte[bufferSize];

        while ((bytesRead = stream.read(buffer)) != -1) {
            sw.write(new String(buffer, 0, bytesRead));
        }
    }

    return sw.toString();
}

@Override
public final boolean loadContent(final File file) {
    try {
        FileInputStream fis = new FileInputStream(file);
        DataInputStream dis = new DataInputStream(fis);
        BufferedReader br = new BufferedReader(new InputStreamReader(dis));
        StringBuilder sb = new StringBuilder();
        String strLine;
        while ((strLine = br.readLine()) != null) {
            sb.append(strLine);
            sb.append("\n");
        }
        if (sb.length() != 0) {
            sb.deleteCharAt(sb.length() - 1);
        }
        setText(sb.toString());
        dis.close();
        return true;
    } catch (IOException e) {
        LOG.warning("KH: could not load specified file: " + file.getPath());
        e.printStackTrace();
    }
    return false;
}

private String loadJS() {
    StringBuilder buf = new StringBuilder();
    try {
        InputStream is = getResources().getAssets().open("youtube_inject.js");
        BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
        String str;

        while ((str = br.readLine()) != null) {
            buf.append(str);
        }

        br.close();
    } catch (Throwable throwable) {
        throwable.printStackTrace();
    }

    return buf.toString();
}

public String buildModSource() {
    String template;
    try (BufferedReader buffer = new BufferedReader(new InputStreamReader(getClass().getResourceAsStream("/cslmusicmod/stationeditor/Mod.cs")))) {
        template = buffer.lines().collect(Collectors.joining("\n"));
    } catch (IOException e) {
        throw new IllegalStateException();
    }

    String namespace = "MusicPack_" + getName().trim().replaceAll("[^a-zA-Z0-9]" , "_");

    template = template.replace("__NAME__", getName())
            .replace("__DESCRIPTION__", getDescription())
            .replace("__NAMESPACE__", namespace);

    return template;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_aboutus);

    Intent incoming = getIntent();
    Bundle extras = incoming.getExtras();

    String uri = "html/about.html";
    if(extras != null){
        uri = extras.getString(EXTRA_HTML_URI);
    }

    mWebView = (WebView) findViewById(R.id.webView);
    mCloseBtn = (ImageButton) findViewById(R.id.closeButton);

    mCloseBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            onBackPressed();
        }
    });

    InputStream is;
    String htmlData = "";
    try {
        is = this.getAssets().open(uri);
        BufferedReader r = new BufferedReader(new InputStreamReader(is));
        StringBuilder stringBuilder = new StringBuilder();

        String line;
        while( (line=r.readLine()) != null ) {
            stringBuilder.append(line);
        }
        htmlData = stringBuilder.toString();
    } catch( IOException error ) {}
    mWebView.loadDataWithBaseURL("file:///android_asset/", htmlData, "text/html", "utf-8", "about:blank");
}

public static void main(String[] args) throws Exception {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String s;
    String[] parts;
    int testsNum = Integer.parseInt(br.readLine());
    for (int t = 0; t < testsNum; t++) {
        arrLength = Integer.parseInt(br.readLine());
        s = br.readLine();
        parts = s.split(" ", -1);
        for (int i = 0; i < arrLength; i++) {
            arr[i] = Integer.parseInt(parts[i]);
        }
        int result = solveProblem();
        System.out.println(result);
    }
}

public static void main(String[] args) throws Exception {
    // Считать строки с консоли и объявить ArrayList list тут

    ArrayList <String> list = new ArrayList<>();
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    for (int i=0; i<10; i++) {
        list.add(br.readLine());
    }

    ArrayList<String> result = doubleValues(list);

    // Вывести на экран result
    for (String s: result) {
        System.out.println(s);
    }
}

private void commandLoop() throws IOException {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    while (true) {
        TerminalCommand tc = Terminal.create(in.readLine());
        if (tc instanceof TerminalCommand.Guest) {
            TerminalCommand.Guest tcg = (TerminalCommand.Guest) tc;
            createGuest(tcg.count, tcg.coffee, tcg.maxCoffeeCount);
        } else if (tc == TerminalCommand.Status.Instance) {
            getStatus();
        } else if (tc == TerminalCommand.Quit.Instance) {
            system.terminate();
            break;
        } else {
            TerminalCommand.Unknown u = (TerminalCommand.Unknown) tc;
            log.warning("Unknown terminal command {}!", u.command);
        }
    }
}

static Map<String, Object> readFieldLayout(int level) {
    try {
        String assetPath = "tables/table" + level + ".json";
        InputStream fin = _context.getAssets().open(assetPath);
        BufferedReader br = new BufferedReader(new InputStreamReader(fin));

        StringBuilder buffer = new StringBuilder();
        String line;
        while ((line=br.readLine())!=null) {
            buffer.append(line);
        }
        fin.close();
        Map<String, Object> layoutMap = JSONUtils.mapFromJSONString(buffer.toString());
        return layoutMap;
    }
    catch(Exception ex) {
        throw new RuntimeException(ex);
    }
}

private static synchronized int getNextPreKeyId(Context context) {
  try {
    File nextFile = new File(getPreKeysDirectory(context), PreKeyIndex.FILE_NAME);

    if (!nextFile.exists()) {
      return Util.getSecureRandom().nextInt(Medium.MAX_VALUE);
    } else {
      InputStreamReader reader = new InputStreamReader(new FileInputStream(nextFile));
      PreKeyIndex       index  = JsonUtils.fromJson(reader, PreKeyIndex.class);
      reader.close();
      return index.nextPreKeyId;
    }
  } catch (IOException e) {
    Log.w("PreKeyUtil", e);
    return Util.getSecureRandom().nextInt(Medium.MAX_VALUE);
  }
}

public static void main(String ... ags)throws IOException
{
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    String str = in.readLine();
    long n = Long.parseLong(in.readLine());
    long a =0;
    for(int i=0;i<str.length();i++)
    {   
        if(str.charAt(i)=='a')
            a++;
    }
    long c =n/(long)str.length();
    a *= c;
    c = n%(long)str.length();
    for(int i=0;i<(int)c;i++)
    {
        if(str.charAt(i)=='a')
            a++;
    }
    System.out.println(a);
}

private static String getMode(String hostPort) throws NumberFormatException, UnknownHostException, IOException {
    String parts[] = hostPort.split(":");
    Socket s = new Socket(parts[0], Integer.parseInt(parts[1]));
    s.getOutputStream().write("stat".getBytes());
    BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
    String line;
    try {
      while((line = br.readLine()) != null) {
        if (line.startsWith("Mode: ")) {
          return line.substring(6);
        }
      }
      return "unknown";
    } finally {
      s.close();
    }
}

/**
 * Writes the associated README to the specified {@link Path}.
 *
 * @param outputPath The {@link Path} to which the README should be written.
 * @throws IOException
 */
protected void writeReadme(Path outputPath) throws IOException {
    InputStream readmeResource = Thread.currentThread()
                                       .getContextClassLoader()
                                       .getResourceAsStream(getClass().getSimpleName() + "_README.md");
    Files.createDirectories(outputPath);
    String username = System.getProperty("user.name");
    LocalDateTime now = LocalDateTime.now();
    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    String date = formatter.format(now);

    if (readmeResource != null) {
        String readmeContent = new BufferedReader(new InputStreamReader(readmeResource)).lines()
                                                                                        .map(line -> {
                                                                                            if (line.contains("%DATE%") && line.contains("%USER%")) {
                                                                                                return line.replace("%DATE%", date).replace("%USER%", username);
                                                                                            }
                                                                                            return line;
                                                                                        })
                                                                                        .collect(Collectors.joining("\n"));
        Files.write(outputPath.resolve("README.md"), readmeContent.getBytes());
    }
}

/** 获取网卡序列号 */
public static final String getDUID() {
    String address = "";
    String command = "cmd.exe /c ipconfig /all";
    try {
        Process p = Runtime.getRuntime().exec(command);
        BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
        String line;
        while ((line = br.readLine()) != null) {
            if (line.indexOf("DUID") > 0) {
                int index = line.indexOf(":");
                index += 2;
                address = line.substring(index);
                break;
            }
        }
        br.close();
    } catch (IOException e) {
    }
    return address;
}

/**
 * This method reads from a stream based on the passed connection
 * @param connection the connection to read from
 * @return the contents of the stream
 * @throws IOException if it cannot read from the http connection
 */
private static String getResponseContent(HttpURLConnection connection) throws IOException {
  // Use the content encoding to convert bytes to characters.
  String encoding = connection.getContentEncoding();
  if (encoding == null) {
    encoding = "UTF-8";
  }
  InputStreamReader reader = new InputStreamReader(connection.getInputStream(), encoding);
  try {
    int contentLength = connection.getContentLength();
    StringBuilder sb = (contentLength != -1)
        ? new StringBuilder(contentLength)
        : new StringBuilder();
    char[] buf = new char[1024];
    int read;
    while ((read = reader.read(buf)) != -1) {
      sb.append(buf, 0, read);
    }
    return sb.toString();
  } finally {
    reader.close();
  }
}

/**
 * Creates a {@link JsonObject} from the given json string.
 * 
 * @param jsonString the json string to parse
 * @return the {@link JsonObject} received while parsing the given json string
 * @throws JsonParsingFailedException if any exception occurred at runtime
 */
public static JsonObject createJsonObjectFromString(final String jsonString) throws JsonParsingFailedException {
   InputStream stream = new ByteArrayInputStream(jsonString.getBytes(StandardCharsets.UTF_8));
   Reader reader = new InputStreamReader(stream, StandardCharsets.UTF_8);

   JsonObject readJsonObject = null;
   try {
      readJsonObject = new Gson().fromJson(reader, JsonObject.class);
   } catch (JsonSyntaxException jsonSyntaxException) {
      throw new JsonParsingFailedException(jsonSyntaxException);
   } catch (JsonIOException jsonIoException) {
      throw new JsonParsingFailedException(jsonIoException);
   }

   return readJsonObject;
}

private void traceResponse(ClientHttpResponse response) throws IOException {
    StringBuilder inputStringBuilder = new StringBuilder();
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getBody(), "UTF-8"));
    String line = bufferedReader.readLine();
    while (line != null) {
        inputStringBuilder.append(line);
        inputStringBuilder.append('\n');
        line = bufferedReader.readLine();
    }
    log.debug("============================response begin==========================================");
    log.debug("Status code  : {}", response.getStatusCode());
    log.debug("Status text  : {}", response.getStatusText());
    log.debug("Headers      : {}", response.getHeaders());
    log.debug("Response body: {}", inputStringBuilder.toString());
    log.debug("=======================response end=================================================");
}

/**
 * This method essentially imitates the getConfig method within the JavaPlugin class
 * but is used to create or grab special config files pertaining to the Wage Tables of
 * the plugin
 *
 * @param resource The file or resource to grab the Configuration for.
 *
 * @return The configuration of the resource.
 */
public YamlConfiguration getSpecialConfig (String resource)
{
    YamlConfiguration config = mWageConfigs.get (resource);

    if (config == null)
    {
        InputStream configStream = mPlugin.getResource (resource);
        config = YamlConfiguration.loadConfiguration (mWageFiles.get (resource));

        if (configStream != null)
        {
            config.setDefaults (YamlConfiguration.loadConfiguration (new InputStreamReader (configStream, Charsets.UTF_8)));
        }

        mWageConfigs.put (resource, config);
    }

    return config;
}

public static void main(String[] args) {

        try {
            /*
             * trying to automatically configure include path by running cpp -v
             */
            Process p = Runtime.getRuntime().exec("cpp -v");

            InputStreamReader stdInput = new //BufferedReader(new 
                 InputStreamReader(p.getInputStream()) ; //);

            // read the output from the command
            System.out.println("Here is the standard output of the command:\n");
            while (stdInput.ready() ) {
                System.out.print(stdInput.read());
            }
        }
        catch (IOException e) {
            System.out.println("exception happened - here's what I know: ");
            e.printStackTrace();
            System.exit(-1);
        }
    }

public static void main(String ... ags)throws Exception
{
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    int n = Integer.parseInt(in.readLine());
    for(int i=0;i<n;i++)
    {
        StringTokenizer tk = new StringTokenizer(in.readLine());
        int a = Integer.parseInt(tk.nextToken());
        int b = Integer.parseInt(tk.nextToken());
        int c = Integer.parseInt(tk.nextToken());
        int sum=a+b;
        System.out.print(sum +" ");
        for(int j=1;j<c;j++)
        {
            sum = sum+(power(j)*b);
            System.out.print(sum + " ");
        }
        System.out.println();
    }
}

@Override
protected List<SampleGroup> doInBackground(String... uris) {
  List<SampleGroup> result = new ArrayList<>();
  Context context = getApplicationContext();
  String userAgent = Util.getUserAgent(context, "ExoPlayerDemo");
  DataSource dataSource = new DefaultDataSource(context, null, userAgent, false);
  for (String uri : uris) {
    DataSpec dataSpec = new DataSpec(Uri.parse(uri));
    InputStream inputStream = new DataSourceInputStream(dataSource, dataSpec);
    try {
      readSampleGroups(new JsonReader(new InputStreamReader(inputStream, "UTF-8")), result);
    } catch (Exception e) {
      Log.e(TAG, "Error loading sample list: " + uri, e);
      sawError = true;
    } finally {
      Util.closeQuietly(dataSource);
    }
  }
  return result;
}

static void init() {
    try {
        glossary = new Vector();
        URL url = URLFactory.url( DSDP.ROOT+"fauna/glossary.gz");
        BufferedReader in = new BufferedReader(
            new InputStreamReader( 
            new GZIPInputStream( url.openStream() )));
        String s;
        while( (s=in.readLine())!=null ) glossary.add(s.getBytes());
        glossary.trimToSize();
    } catch(IOException e) {
        e.printStackTrace();
    }
}

private void handleProcessFailure(final Process failedProcess,
        final String[] execCmd, final int result) throws IOException {
    try (StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw)) {
        pw.append("error=").append(Integer.toString(result));
        pw.append(" running:");
        for (String arg: execCmd) {
            pw.append(" '").append(arg).append("'");
        }
        try (InputStream is = failedProcess.getErrorStream();
                InputStreamReader isr = new InputStreamReader(is);
                BufferedReader br = new BufferedReader(isr)) {
            while (br.ready()) {
                pw.println();
                pw.append("\t\t").append(br.readLine());
            }
        } finally {
            pw.flush();
        }
        throw new IOException(sw.toString());
    }
}

private void sendChat() {
    try {
        service.send(new Chat(cid, cname, Chat.ChatType.GROUP));

        URLConnection connection = new URL(generateURL(cname))
                .openConnection();

        BufferedReader reader =
                new BufferedReader(
                        new InputStreamReader(
                                connection.getInputStream(), "UTF-8"));
        StringBuilder builder = new StringBuilder();
        String        l;
        while ((l = reader.readLine()) != null)
            builder.append(l);
        reader.close();
        Utils.logDebug(builder);

        cid = Integer.parseInt(builder.toString());

        Utils.getController().getMessengerDatabase().insertChat(new Chat(cid, cname, Chat.ChatType.GROUP));
    } catch (IOException e) {
        Utils.logError(e);
    }
}

private String processResponse() throws IOException, BadResponseCodeException {
    int responseCode = connection.getResponseCode();

    if(responseCode != HttpURLConnection.HTTP_OK) {
        throw new BadResponseCodeException(MessageUtils.prepareBadCodeErrorMessage(responseCode));
    }

    BufferedReader bufferedReader = new BufferedReader(
            new InputStreamReader(connection.getInputStream()));
    String output;
    StringBuilder response = new StringBuilder();

    while ((output = bufferedReader.readLine()) != null) {
        response.append(output);
    }

    bufferedReader.close();

    return response.toString();
}

/**
 * Create an object from the input stream
 */
public Object getContent(DataSource ds) throws IOException {
    String ctStr = ds.getContentType();
    String charset = null;
    if (ctStr != null) {
        ContentType ct = new ContentType(ctStr);
        if (!isXml(ct)) {
            throw new IOException(
                "Cannot convert DataSource with content type \""
                        + ctStr + "\" to object in XmlDataContentHandler");
        }
        charset = ct.getParameter("charset");
    }
    return (charset != null)
            ? new StreamSource(new InputStreamReader(ds.getInputStream()), charset)
            : new StreamSource(ds.getInputStream());
}

@Before
public void init() throws Exception {
    MockitoAnnotations.initMocks(this);

    sessionControllerTest = new SessionController();

    directoryTest = new File(TEST_WORKSPACE_PATH);
    fileReaderTest = new FileReader(TEST_WORKSPACE_PATH + "2.json");

    Mockito.when(requestMock.params(Mockito.eq(":name"))).thenReturn("2");

    InputStream is = SessionController.class.getClassLoader().getResourceAsStream("mockSessionSchedule.json");
    JsonReader reader = new JsonReader(new InputStreamReader(is));
    Schedule schedule = gson.fromJson(reader, new TypeToken<Schedule>() {
    }.getType());
    String scheduleStrTest = gson.toJson(schedule);
    Mockito.when(requestMock.body()).thenReturn(scheduleStrTest);

    PowerMockito.whenNew(File.class).withParameterTypes(String.class)
            .withArguments(Mockito.eq(WORKSPACE_PATH)).thenReturn(directoryTest);
    PowerMockito.whenNew(FileReader.class).withParameterTypes(String.class)
            .withArguments(Mockito.eq(WORKSPACE_PATH + "2.json")).thenReturn(fileReaderTest);
}