Example usage for java.io BufferedReader close

Introduction

In this page you can find the example usage for java.io BufferedReader close.

Prototype

public void close() throws IOException 

Source Link

Usage

From source file:BufferedCopy.java

public static void main(String[] args) throws IOException {
    BufferedReader inputStream = null;
    BufferedWriter outputStream = null;

    try {/* w w w  . j a va 2  s . c  o m*/
        inputStream = new BufferedReader(new FileReader("xanadu.txt"));
        outputStream = new BufferedWriter(new FileWriter("characteroutput.txt"));

        int c;
        while ((c = inputStream.read()) != -1) {
            outputStream.write(c);
        }
    } finally {
        if (inputStream != null) {
            inputStream.close();
        }
        if (outputStream != null) {
            outputStream.close();
        }
    }
}

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From source file:CopyLines.java

public static void main(String[] args) throws IOException {
    BufferedReader inputStream = null;
    PrintWriter outputStream = null;

    try {/*from   w ww. j av a 2 s .c o m*/
        inputStream = new BufferedReader(new FileReader("xanadu.txt"));
        outputStream = new PrintWriter(new FileWriter("characteroutput.txt"));

        String l;
        while ((l = inputStream.readLine()) != null) {
            outputStream.println(l);
        }
    } finally {
        if (inputStream != null) {
            inputStream.close();
        }
        if (outputStream != null) {
            outputStream.close();
        }
    }
}

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From source file:AllCapsDemo.java

License:asdf

public static void main(String[] arguments) {
    String sourceName = "asdf";
    try {//w  w w .  j  av  a 2 s . c  om
        File source = new File(sourceName);
        File temp = new File("cap" + sourceName + ".tmp");

        FileReader fr = new FileReader(source);
        BufferedReader in = new BufferedReader(fr);

        FileWriter fw = new FileWriter(temp);
        BufferedWriter out = new BufferedWriter(fw);

        boolean eof = false;
        int inChar = 0;
        do {
            inChar = in.read();
            if (inChar != -1) {
                char outChar = Character.toUpperCase((char) inChar);
                out.write(outChar);
            } else
                eof = true;
        } while (!eof);
        in.close();
        out.close();

        boolean deleted = source.delete();
        if (deleted)
            temp.renameTo(source);
    } catch (Exception se) {
        System.out.println("Error - " + se.toString());
    }
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder domBuilder = domFactory.newDocumentBuilder();

    Document newDoc = domBuilder.newDocument();
    Element rootElement = newDoc.createElement("CSV2XML");
    newDoc.appendChild(rootElement);//from   w  w w.j  a v a  2  s . c o m

    BufferedReader csvReader = new BufferedReader(new FileReader("csvFileName.txt"));
    String curLine = csvReader.readLine();
    String[] csvFields = curLine.split(",");
    Element rowElement = newDoc.createElement("row");
    for (String value : csvFields) {
        Element curElement = newDoc.createElement(value);
        curElement.appendChild(newDoc.createTextNode(value));
        rowElement.appendChild(curElement);
        rootElement.appendChild(rowElement);
    }
    csvReader.close();
    TransformerFactory tranFactory = TransformerFactory.newInstance();
    Transformer aTransformer = tranFactory.newTransformer();
    Source src = new DOMSource(newDoc);
    Result dest = new StreamResult(new File("xmlFileName"));
    aTransformer.transform(src, dest);
}

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From source file:examples.nntp.ArticleReader.java

public static void main(String[] args) throws SocketException, IOException {

    if (args.length != 2 && args.length != 3 && args.length != 5) {
        System.out.println(//w  ww .  ja v a2 s . com
                "Usage: MessageThreading <hostname> <groupname> [<article specifier> [<user> <password>]]");
        return;
    }

    String hostname = args[0];
    String newsgroup = args[1];
    // Article specifier can be numeric or Id in form <m.n.o.x@host>
    String articleSpec = args.length >= 3 ? args[2] : null;

    NNTPClient client = new NNTPClient();
    client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));
    client.connect(hostname);

    if (args.length == 5) { // Optional auth
        String user = args[3];
        String password = args[4];
        if (!client.authenticate(user, password)) {
            System.out.println("Authentication failed for user " + user + "!");
            System.exit(1);
        }
    }

    NewsgroupInfo group = new NewsgroupInfo();
    client.selectNewsgroup(newsgroup, group);

    BufferedReader br;
    String line;
    if (articleSpec != null) {
        br = (BufferedReader) client.retrieveArticleHeader(articleSpec);
    } else {
        long articleNum = group.getLastArticleLong();
        br = client.retrieveArticleHeader(articleNum);
    }
    if (br != null) {
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }
        br.close();
    }
    if (articleSpec != null) {
        br = (BufferedReader) client.retrieveArticleBody(articleSpec);
    } else {
        long articleNum = group.getLastArticleLong();
        br = client.retrieveArticleBody(articleNum);
    }
    if (br != null) {
        while ((line = br.readLine()) != null) {
            System.out.println(line);
        }
        br.close();
    }
}

---

From source file:BufferedSocketClient.java

public static void main(String args[]) throws Exception {
        int cTosPortNumber = 1777;
        String str;/*from   ww w.java  2  s  .c o  m*/

        ServerSocket servSocket = new ServerSocket(cTosPortNumber);
        System.out.println("Waiting for a connection on " + cTosPortNumber);

        Socket fromClientSocket = servSocket.accept();
        PrintWriter pw = new PrintWriter(fromClientSocket.getOutputStream(), true);

        BufferedReader br = new BufferedReader(new InputStreamReader(fromClientSocket.getInputStream()));

        while ((str = br.readLine()) != null) {
            System.out.println("The message: " + str);

            if (str.equals("bye")) {
                pw.println("bye");
                break;
            } else {
                str = "Server returns " + str;
                pw.println(str);
            }
        }
        pw.close();
        br.close();

        fromClientSocket.close();
    }

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From source file:esg.security.yadis.XrdsDoc.java

/**
 * TODO: move this test harness to unit tests
 * @param args/*from  www . j  ava 2  s.  co  m*/
 * @throws IOException 
 * @throws SAXException 
 * @throws ParserConfigurationException 
 * @throws XPathExpressionException 
 * @throws XrdsParseException 
 */
public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException,
        XPathExpressionException, XrdsParseException {

    String yadisDocFilePath = "/home/pjkersha/workspace/EsgYadisParser/data/yadis.xml";
    XrdsDoc yadisParser = new XrdsDoc();
    StringBuffer contents = new StringBuffer();

    FileReader fileReader = new FileReader(yadisDocFilePath);
    BufferedReader in = new BufferedReader(fileReader);
    try {
        String text = null;

        while ((text = in.readLine()) != null) {
            contents.append(text);
            contents.append(System.getProperty("line.separator"));
        }
        in.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    String yadisDocContent = contents.toString();
    yadisParser.parse(yadisDocContent);
}

---

From source file:SequentialPageRank.java

@SuppressWarnings({ "static-access" })
public static void main(String[] args) throws IOException {
    Options options = new Options();

    options.addOption(OptionBuilder.withArgName("path").hasArg().withDescription("input path").create(INPUT));
    options.addOption(//from  w ww.ja  va2 s.  com
            OptionBuilder.withArgName("val").hasArg().withDescription("random jump factor").create(JUMP));

    CommandLine cmdline = null;
    CommandLineParser parser = new GnuParser();

    try {
        cmdline = parser.parse(options, args);
    } catch (ParseException exp) {
        System.err.println("Error parsing command line: " + exp.getMessage());
        System.exit(-1);
    }

    if (!cmdline.hasOption(INPUT)) {
        System.out.println("args: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.setWidth(120);
        formatter.printHelp(SequentialPageRank.class.getName(), options);
        ToolRunner.printGenericCommandUsage(System.out);
        System.exit(-1);
    }

    String infile = cmdline.getOptionValue(INPUT);
    float alpha = cmdline.hasOption(JUMP) ? Float.parseFloat(cmdline.getOptionValue(JUMP)) : 0.15f;

    int edgeCnt = 0;
    DirectedSparseGraph<String, Integer> graph = new DirectedSparseGraph<String, Integer>();

    BufferedReader data = new BufferedReader(new InputStreamReader(new FileInputStream(infile)));

    String line;
    while ((line = data.readLine()) != null) {
        line.trim();
        String[] arr = line.split("\\t");

        for (int i = 1; i < arr.length; i++) {
            graph.addEdge(new Integer(edgeCnt++), arr[0], arr[i]);
        }
    }

    data.close();

    WeakComponentClusterer<String, Integer> clusterer = new WeakComponentClusterer<String, Integer>();

    Set<Set<String>> components = clusterer.transform(graph);
    int numComponents = components.size();
    System.out.println("Number of components: " + numComponents);
    System.out.println("Number of edges: " + graph.getEdgeCount());
    System.out.println("Number of nodes: " + graph.getVertexCount());
    System.out.println("Random jump factor: " + alpha);

    // Compute PageRank.
    PageRank<String, Integer> ranker = new PageRank<String, Integer>(graph, alpha);
    ranker.evaluate();

    // Use priority queue to sort vertices by PageRank values.
    PriorityQueue<Ranking<String>> q = new PriorityQueue<Ranking<String>>();
    int i = 0;
    for (String pmid : graph.getVertices()) {
        q.add(new Ranking<String>(i++, ranker.getVertexScore(pmid), pmid));
    }

    // Print PageRank values.
    System.out.println("\nPageRank of nodes, in descending order:");
    Ranking<String> r = null;
    while ((r = q.poll()) != null) {
        System.out.println(r.rankScore + "\t" + r.getRanked());
    }
}

---

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document(PageSize.A4);
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    document.open();//from w ww.  j  ava2 s . com
    PdfContentByte cb = writer.getDirectContent();
    BufferedReader reader = new BufferedReader(new FileReader("a.txt"));
    String line;
    Paragraph p;
    float pos;
    while ((line = reader.readLine()) != null) {
        p = new Paragraph("    " + line);
        p.setAlignment(Element.ALIGN_JUSTIFIED);
        document.add(p);
        pos = writer.getVerticalPosition(false);
        cb.moveTo(0, pos);
        cb.lineTo(PageSize.A4.width(), pos);
        cb.stroke();
        if (pos < 90)
            document.newPage();
    }
    reader.close();
    document.close();
}

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From source file:HelloSmartsheet.java

public static void main(String[] args) {
    HttpURLConnection connection = null;
    StringBuilder response = new StringBuilder();

    //We are using Jackson JSON parser to deserialize the JSON. See http://wiki.fasterxml.com/JacksonHome
    //Feel free to use which ever library you prefer.
    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);

    try {//  w w w . j  a  v  a 2s  . c  o m

        System.out.println("STARTING HelloSmartsheet...");
        //Create a BufferedReader to read user input.
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

        System.out.print("Enter Smartsheet API access token:");
        String accessToken = in.readLine();
        System.out.println("Fetching list of your sheets...");
        //Create a connection and fetch the list of sheets
        connection = (HttpURLConnection) new URL(GET_SHEETS_URL).openConnection();
        connection.addRequestProperty("Authorization", "Bearer " + accessToken);
        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String line;
        //Read the response line by line.
        while ((line = reader.readLine()) != null) {
            response.append(line);
        }
        reader.close();
        //Use Jackson to conver the JSON string to a List of Sheets
        List<Sheet> sheets = mapper.readValue(response.toString(), new TypeReference<List<Sheet>>() {
        });
        if (sheets.size() == 0) {
            System.out.println("You don't have any sheets.  Goodbye!");
            return;
        }
        System.out.println("Total sheets: " + sheets.size());
        int i = 1;
        for (Sheet sheet : sheets) {
            System.out.println(i++ + ": " + sheet.name);
        }
        System.out.print("Enter the number of the sheet you want to share: ");

        //Prompt the user to provide the sheet number, the email address, and the access level
        Integer sheetNumber = Integer.parseInt(in.readLine().trim()); //NOTE: for simplicity, error handling and input validation is neglected.
        Sheet chosenSheet = sheets.get(sheetNumber - 1);

        System.out.print("Enter an email address to share " + chosenSheet.getName() + " to: ");
        String email = in.readLine();

        System.out.print("Choose an access level (VIEWER, EDITOR, EDITOR_SHARE, ADMIN) for " + email + ": ");
        String accessLevel = in.readLine();

        //Create a share object
        Share share = new Share();
        share.setEmail(email);
        share.setAccessLevel(accessLevel);

        System.out.println("Sharing " + chosenSheet.name + " to " + email + " as " + accessLevel + ".");

        //Create a connection. Note the SHARE_SHEET_URL uses /sheet as opposed to /sheets (with an 's')
        connection = (HttpURLConnection) new URL(SHARE_SHEET_URL.replace(SHEET_ID, "" + chosenSheet.getId()))
                .openConnection();
        connection.setDoOutput(true);
        connection.addRequestProperty("Authorization", "Bearer " + accessToken);
        connection.addRequestProperty("Content-Type", "application/json");

        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
        //Serialize the Share object
        writer.write(mapper.writeValueAsString(share));
        writer.close();

        //Read the response and parse the JSON
        reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        response = new StringBuilder();
        while ((line = reader.readLine()) != null) {
            response.append(line);
        }

        Result result = mapper.readValue(response.toString(), Result.class);
        System.out.println("Sheet shared successfully, share ID " + result.result.id);
        System.out.println("Press any key to quit.");
        in.read();

    } catch (IOException e) {
        BufferedReader reader = new BufferedReader(
                new InputStreamReader(((HttpURLConnection) connection).getErrorStream()));
        String line;
        try {
            response = new StringBuilder();
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();
            Result result = mapper.readValue(response.toString(), Result.class);
            System.out.println(result.message);
        } catch (IOException e1) {
            e1.printStackTrace();
        }

    } catch (Exception e) {
        System.out.println("Something broke: " + e.getMessage());
        e.printStackTrace();
    }

}

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