Example usage for java.io BufferedReader readLine

Introduction

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

Prototype

public String readLine() throws IOException 

Source Link

Document

Reads a line of text.

Usage

From source file:RemoveHTMLReader.java

/** The test program: read a text file, strip HTML, print to console */
public static void main(String[] args) {
    try {/*from   w w  w  .j a  va2 s.c om*/
        if (args.length != 1)
            throw new IllegalArgumentException("Wrong number of args");
        // Create a stream to read from the file and strip tags from it
        BufferedReader in = new BufferedReader(new RemoveHTMLReader(new FileReader(args[0])));
        // Read line by line, printing lines to the console
        String line;
        while ((line = in.readLine()) != null)
            System.out.println(line);
        in.close(); // Close the stream.
    } catch (Exception e) {
        System.err.println(e);
        System.err.println("Usage: java RemoveHTMLReader$Test" + " <filename>");
    }
}

---

From source file:luceneindexer.Main.java

/**
 * @param args the command line arguments
 *//*from w w  w.  j  a  v  a  2  s  . co m*/
public static void main(String[] args) {
    // TODO code application logic here
    System.out.println("Hello world");
    //Open the file of JSON for reading
    FileOpener fOpener = new FileOpener("parks.json");

    //Create the object for writing
    LuceneWriter luceneWriter = new LuceneWriter("indexDir");

    //This is from Jackson which allows for binding the JSON to the Park.java class
    ObjectMapper objectMapper = new ObjectMapper();

    try {

        //first see if we can open a directory for writing
        if (luceneWriter.openIndex()) {
            //get a buffered reader handle to the file
            BufferedReader breader = new BufferedReader(fOpener.getFileForReading());
            String value = null;
            //loop through the file line by line and parse 
            while ((value = breader.readLine()) != null) {
                Park park = objectMapper.readValue(value, Park.class);

                //now submit each park to the lucene writer to add to the index
                luceneWriter.addPark(park);

            }

        } else {
            System.out.println("We had a problem opening the directory for writing");
        }

    } catch (Exception e) {
        System.out.println("Threw exception " + e.getClass() + " :: " + e.getMessage());
    } finally {
        //close out the index and release the lock on the file
        luceneWriter.finish();
    }

}

---

From source file:de.bitocean.dspm.examples.Vertex.java

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

    Reader reader = new FileReader(GRAPHML_ACTIVITY_DEPENDENCY_FILE);

    BufferedReader br = new BufferedReader(reader);
    while (br.ready()) {
        System.out.println(br.readLine());
    }//from   w  w w  . java 2 s  .  c o m

    Transformer<NodeMetadata, Vertex> vtrans = new Transformer<NodeMetadata, Vertex>() {
        public Vertex transform(NodeMetadata nmd) {
            Vertex v = new Vertex();
            v.id = nmd.getId();
            v.name = nmd.getProperty("name");
            v.expression = nmd.getProperty("expression");
            return v;
        }
    };

    Transformer<EdgeMetadata, Edge> etrans = new Transformer<EdgeMetadata, Edge>() {
        public Edge transform(EdgeMetadata emd) {
            System.out.println(emd.toString());
            Edge e = new Edge();
            try {
                e.source = emd.getSource();
            } catch (Exception ex) {

            }
            e.target = emd.getTarget();
            e.weight = Double.parseDouble(emd.getProperty("weight"));
            return e;
        }
    };

    Transformer<HyperEdgeMetadata, Edge> hetrans = new Transformer<HyperEdgeMetadata, Edge>() {
        public Edge transform(HyperEdgeMetadata emd) {
            Edge e = new Edge();
            try {
                e.source = emd.getProperty("source");
            } catch (Exception ex) {

            }
            e.target = emd.getProperty("target");
            e.weight = Double.parseDouble(emd.getProperty("weight"));
            return e;
        }
    };
    Transformer<GraphMetadata, DirectedSparseGraph<Vertex, Edge>> gtrans = new Transformer<GraphMetadata, DirectedSparseGraph<Vertex, Edge>>() {
        public DirectedSparseGraph<Vertex, Edge> transform(GraphMetadata gmd) {
            return new DirectedSparseGraph<Vertex, Edge>();
        }
    };

    GraphMLReader2<DirectedSparseGraph<Vertex, Edge>, Vertex, Edge> gmlr =
            //new GraphMLReader2<UndirectedSparseGraph<Vertex,Edge>, Vertex, Edge>(fileReader, graphTransformer, vertexTransformer, edgeTransformer, hyperEdgeTransformer)
            new GraphMLReader2<DirectedSparseGraph<Vertex, Edge>, Vertex, Edge>(reader, gtrans, vtrans, etrans,
                    hetrans);

    DirectedSparseGraph<Vertex, Edge> g = gmlr.readGraph();

    System.out.println("Number of vetex: " + g.getVertexCount());
    System.out.println("Number of edges: " + g.getEdgeCount());

    System.out.println("==========================");
    System.out.println("Vertices");
    System.out.println("==========================");
    for (Vertex v : g.getVertices()) {
        System.out.println(v);
    }

    System.out.println("==========================");
    System.out.println("Edges");
    System.out.println("==========================");
    for (Edge e : g.getEdges()) {
        System.out.println(e);
    }

}

---

From source file:math2605.gn_exp.java

/**
 * @param args the command line arguments
 *///  www  .  java  2s.co  m
public static void main(String[] args) {
    //get file name
    System.out.println("Please enter a file name:");
    Scanner scanner = new Scanner(System.in);
    String fileName = scanner.nextLine();
    List<String[]> pairs = new ArrayList<>();
    //get coordinate pairs and add to arraylist
    try {
        BufferedReader br = new BufferedReader(new FileReader(fileName));
        String line;
        while ((line = br.readLine()) != null) {
            String[] pair = line.split(",");
            pairs.add(pair);
        }
        br.close();
    } catch (Exception e) {
    }

    System.out.println("Please enter the value of a:");
    double a = scanner.nextInt();
    System.out.println("Please enter the value of b:");
    double b = scanner.nextInt();
    System.out.println("Please enter the value of c:");
    double c = scanner.nextInt();
    //init B, vector with 3 coordinates
    RealMatrix B = new Array2DRowRealMatrix(3, 1);
    B.setEntry(0, 0, a);
    B.setEntry(1, 0, b);
    B.setEntry(2, 0, c);

    System.out.println("Please enter the number of iteration for the Gauss-newton:");
    //init N, number of iterations
    int N = scanner.nextInt();

    //init r, vector of residuals
    RealMatrix r = new Array2DRowRealMatrix();
    setR(pairs, a, b, c, r);

    //init J, Jacobian of r
    RealMatrix J = new Array2DRowRealMatrix();
    setJ(pairs, a, b, c, r, J);

    System.out.println("J");
    System.out.println(J);
    System.out.println("r");
    System.out.println(r);

    RealMatrix sub = findQR(J, r);

    for (int i = N; i > 0; i--) {
        B = B.subtract(sub);
        double B0 = B.getEntry(0, 0);
        double B1 = B.getEntry(1, 0);
        double B2 = B.getEntry(2, 0);
        //CHANGE ABC TO USE B0, B1, B2
        setR(pairs, B0, B1, B2, r);
        setJ(pairs, B0, B1, B2, r, J);
    }
    System.out.println("B");
    System.out.println(B.toString());

}

---

From source file:math2605.gn_qua.java

/**
 * @param args the command line arguments
 *//*from   w  w  w .  j a v  a 2  s  .co  m*/
public static void main(String[] args) {
    //get file name
    System.out.println("Please enter a file name:");
    Scanner scanner = new Scanner(System.in);
    String fileName = scanner.nextLine();
    List<String[]> pairs = new ArrayList<>();
    //get coordinate pairs and add to arraylist
    try {
        BufferedReader br = new BufferedReader(new FileReader(fileName));
        String line;
        while ((line = br.readLine()) != null) {
            String[] pair = line.split(",");
            pairs.add(pair);
        }
        br.close();
    } catch (Exception e) {
        System.out.println(e.getMessage());
    }

    System.out.println("Please enter the value of a:");
    double a = scanner.nextInt();
    System.out.println("Please enter the value of b:");
    double b = scanner.nextInt();
    System.out.println("Please enter the value of c:");
    double c = scanner.nextInt();
    //init B, vector with 3 coordinates
    RealMatrix B = new Array2DRowRealMatrix(3, 1);
    B.setEntry(0, 0, a);
    B.setEntry(1, 0, b);
    B.setEntry(2, 0, c);

    System.out.println("Please enter the number of iteration for the Gauss-newton:");
    //init N, number of iterations
    int N = scanner.nextInt();

    //init r, vector of residuals
    RealMatrix r = new Array2DRowRealMatrix(pairs.size(), 1);
    setR(pairs, a, b, c, r);

    //init J, Jacobian of r
    RealMatrix J = new Array2DRowRealMatrix(pairs.size(), 3);
    setJ(pairs, a, b, c, r, J);

    System.out.println("J");
    System.out.println(J);
    System.out.println("r");
    System.out.println(r);

    RealMatrix sub = findQR(J, r);

    for (int i = N; i > 0; i--) {
        B = B.subtract(sub);
        double B0 = B.getEntry(0, 0);
        double B1 = B.getEntry(1, 0);
        double B2 = B.getEntry(2, 0);
        //CHANGE ABC TO USE B0, B1, B2
        setR(pairs, B0, B1, B2, r);
        setJ(pairs, B0, B1, B2, r, J);
    }
    System.out.println("B");
    System.out.println(B.toString());
}

---

From source file:spatialluceneindexer.Main.java

/**
 * @param args the command line arguments
 *///from w  w  w . ja va 2 s .  co  m
public static void main(String[] args) {

    System.out.println("Starting to create the index");

    //Open the file of JSON for reading
    FileOpener fOpener = new FileOpener("parks.json");

    //Create the object for writing
    LuceneWriter luceneWriter = new LuceneWriter("indexDir");

    //This is from Jackson which allows for binding the JSON to the Park.java class
    ObjectMapper objectMapper = new ObjectMapper();

    try {

        //first see if we can open a directory for writing
        if (luceneWriter.openIndex()) {
            //get a buffered reader handle to the file
            BufferedReader breader = new BufferedReader(fOpener.getFileForReading());
            String value = null;
            //loop through the file line by line and parse 
            while ((value = breader.readLine()) != null) {
                Park park = objectMapper.readValue(value, Park.class);

                //now submit each park to the lucene writer to add to the index
                luceneWriter.addPark(park);

            }

        } else {
            System.out.println("We had a problem opening the directory for writing");
        }

    } catch (Exception e) {
        System.out.println("Threw exception " + e.getClass() + " :: " + e.getMessage());
    } finally {
        luceneWriter.finish();
    }

    System.out.println("Finished created the index");
}

---

From source file:httpclient.UploadAction.java

public static void main(String[] args) throws FileNotFoundException {
    File targetFile1 = new File("F:\\2.jpg");
    // File targetFile2 = new File("F:\\1.jpg");
    FileInputStream fis1 = new FileInputStream(targetFile1);
    // FileInputStream fis2 = new FileInputStream(targetFile2);
    // String targetURL =
    // "http://static.fangbiandian.com.cn/round_server/upload/uploadFile.do";
    String targetURL = "http://www.fangbiandian.com.cn/round_server/user/updateUserInfo.do";
    HttpPost filePost = new HttpPost(targetURL);
    try {/*from   ww w . j  av a  2  s. c o m*/
        // ?????
        HttpClient client = new DefaultHttpClient();
        // FormBodyPart fbp1 = new FormBodyPart("file1", new
        // FileBody(targetFile1));
        // FormBodyPart fbp2 = new FormBodyPart("file2", new
        // FileBody(targetFile2));
        // FormBodyPart fbp3 = new FormBodyPart("file3", new
        // FileBody(targetFile3));
        // List<FormBodyPart> picList = new ArrayList<FormBodyPart>();
        // picList.add(fbp1);
        // picList.add(fbp2);
        // picList.add(fbp3);
        Map<String, Object> paramMap = new HashMap<String, Object>();
        paramMap.put("userId", "65478A5CD8D20C3807EE16CF22AF8A17");
        Map<String, Object> map = new HashMap<String, Object>();
        String jsonStr = JSON.toJSONString(paramMap);
        map.put("cid", 321);
        map.put("request", jsonStr);
        String jsonString = JSON.toJSONString(map);
        MultipartEntity multiEntity = new MultipartEntity();
        Charset charset = Charset.forName("UTF-8");
        multiEntity.addPart("request", new StringBody(jsonString, charset));
        multiEntity.addPart("photo", new InputStreamBody(fis1, "2.jpg"));
        // multiEntity.addPart("licenseUrl", new InputStreamBody(fis2,
        // "1.jpg"));
        filePost.setEntity(multiEntity);
        HttpResponse response = client.execute(filePost);
        int code = response.getStatusLine().getStatusCode();
        System.out.println(code);
        if (HttpStatus.SC_OK == code) {
            System.out.println("?");
            HttpEntity entity = response.getEntity();
            if (entity != null) {
                InputStream instream = entity.getContent();
                try {
                    // do something useful
                    BufferedReader reader = new BufferedReader(new InputStreamReader(instream));
                    String str = null;
                    while ((str = reader.readLine()) != null) {
                        System.out.println(str);
                    }
                } finally {
                    instream.close();
                }
            }
        } else {
            System.out.println("");
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    } finally {
        filePost.releaseConnection();
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    try {/*from  w  ww.j  a  v  a 2 s. c o m*/
        String url = "jdbc:odbc:yourdatabasename";
        String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
        String user = "guest";
        String password = "guest";

        FileInputStream fis = new FileInputStream("sometextfile.txt");

        Class.forName(driver);
        Connection connection = DriverManager.getConnection(url, user, password);
        Statement createTable = connection.createStatement();
        createTable.executeUpdate("CREATE TABLE source_code (name char(20), source LONGTEXT)");
        String ins = "INSERT INTO source_code VALUES(?,?)";
        PreparedStatement statement = connection.prepareStatement(ins);

        statement.setString(1, "TryInputStream2");
        statement.setAsciiStream(2, fis, fis.available());

        int rowsUpdated = statement.executeUpdate();
        System.out.println("Rows affected: " + rowsUpdated);
        Statement getCode = connection.createStatement();
        ResultSet theCode = getCode.executeQuery("SELECT name,source FROM source_code");
        BufferedReader reader = null;
        String input = null;

        while (theCode.next()) {
            reader = new BufferedReader(new InputStreamReader(theCode.getAsciiStream(2)));
            while ((input = reader.readLine()) != null) {
                System.out.println(input);
            }
        }
        connection.close();
    } catch (Exception e) {
        System.err.println(e);
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Socket socket = new Socket("localhost", 12900);
    System.out.println("Started client  socket at " + socket.getLocalSocketAddress());
    BufferedReader socketReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
    BufferedWriter socketWriter = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
    BufferedReader consoleReader = new BufferedReader(new InputStreamReader(System.in));

    String promptMsg = "Please enter a  message  (Bye  to quit):";
    String outMsg = null;//  w  ww  .  j av  a  2s  . c  o  m

    System.out.print(promptMsg);
    while ((outMsg = consoleReader.readLine()) != null) {
        if (outMsg.equalsIgnoreCase("bye")) {
            break;
        }
        // Add a new line to the message to the server,
        // because the server reads one line at a time.
        socketWriter.write(outMsg);
        socketWriter.write("\n");
        socketWriter.flush();

        // Read and display the message from the server
        String inMsg = socketReader.readLine();
        System.out.println("Server: " + inMsg);
        System.out.println(); // Print a blank line
        System.out.print(promptMsg);
    }
    socket.close();
}

---

From source file:cc.twittertools.util.VerifySubcollection.java

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

    options.addOption(OptionBuilder.withArgName("dir").hasArg().withDescription("source collection directory")
            .create(COLLECTION_OPTION));
    options.addOption(//ww w  . j av a 2 s. co  m
            OptionBuilder.withArgName("file").hasArg().withDescription("list of tweetids").create(ID_OPTION));

    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(COLLECTION_OPTION) || !cmdline.hasOption(ID_OPTION)) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(ExtractSubcollection.class.getName(), options);
        System.exit(-1);
    }

    String collectionPath = cmdline.getOptionValue(COLLECTION_OPTION);

    LongOpenHashSet tweetids = new LongOpenHashSet();
    File tweetidsFile = new File(cmdline.getOptionValue(ID_OPTION));
    if (!tweetidsFile.exists()) {
        System.err.println("Error: " + tweetidsFile + " does not exist!");
        System.exit(-1);
    }
    LOG.info("Reading tweetids from " + tweetidsFile);

    FileInputStream fin = new FileInputStream(tweetidsFile);
    BufferedReader br = new BufferedReader(new InputStreamReader(fin));

    String s;
    while ((s = br.readLine()) != null) {
        tweetids.add(Long.parseLong(s));
    }
    br.close();
    fin.close();
    LOG.info("Read " + tweetids.size() + " tweetids.");

    File file = new File(collectionPath);
    if (!file.exists()) {
        System.err.println("Error: " + file + " does not exist!");
        System.exit(-1);
    }

    LongOpenHashSet seen = new LongOpenHashSet();
    TreeMap<Long, String> tweets = Maps.newTreeMap();

    PrintStream out = new PrintStream(System.out, true, "UTF-8");
    StatusStream stream = new JsonStatusCorpusReader(file);
    Status status;
    int cnt = 0;
    while ((status = stream.next()) != null) {
        if (!tweetids.contains(status.getId())) {
            LOG.error("tweetid " + status.getId() + " doesn't belong in collection");
            continue;
        }
        if (seen.contains(status.getId())) {
            LOG.error("tweetid " + status.getId() + " already seen!");
            continue;
        }

        tweets.put(status.getId(), status.getJsonObject().toString());
        seen.add(status.getId());
        cnt++;
    }
    LOG.info("total of " + cnt + " tweets in subcollection.");

    for (Map.Entry<Long, String> entry : tweets.entrySet()) {
        out.println(entry.getValue());
    }

    stream.close();
    out.close();
}

---

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