Example usage for java.io Writer close

List of usage examples for java.io Writer close

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Introduction

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

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream, flushing it first.

Usage

From source file:Main.java

public static void main(String[] args) {
    char[] c1 = { 'h', 'e', 'l', 'l', 'o' };
    char[] c2 = { 'w', 'o', 'r', 'l', 'd' };

    Writer writer = new PrintWriter(System.out);

    try {//w  ww.  j a v a 2 s.  c  o m
        // write a char array
        writer.write(c1);

        // flush the writer
        writer.flush();

        // write a new char array
        writer.write(c2);

        // flush the stream again
        writer.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    String[] words = { "", "e", "a", "c" };
    Writer w = new BufferedWriter(new OutputStreamWriter(System.out, "Cp850"));
    for (int i = 0; i < 4; i++) {
        w.write(words[i] + " ");
    }//from  w w  w . j a v  a2s  . co m
    sortArray(Collator.getInstance(), words);
    for (int i = 0; i < 4; i++) {
        w.write(words[i] + " ");
    }
    w.flush();
    w.close();
}

From source file:Main.java

public static void main(String[] args) {
    String s = "from java2s.com";

    Writer writer = new PrintWriter(System.out);

    try {//  w  ww  .j av  a 2  s  . co m
        // append a string
        writer.append(s);

        // flush the writer
        writer.flush();

        // append a new string
        writer.append("\nThis is an example");

        // flush and close the stream
        writer.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {
    String s = "from java2s.com";

    Writer writer = new PrintWriter(System.out);

    try {//w  ww .ja  va 2 s.com
        // append a string
        writer.append(s);

        // flush the writer
        writer.flush();

        // append a new string in a new line
        writer.append("\nThis is an example");

        // flush the stream again
        writer.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {
    char[] c = { 'j', 'a', 'v', 'a', '2', 's', '.', 'c', 'o', 'm' };

    Writer writer = new PrintWriter(System.out);

    try {/*from w  ww.  j  a  v  a  2 s .  c  o m*/
        // write a portion of a char array
        writer.write(c, 0, 5);

        // flush the writer
        writer.flush();

        // write another portion of a char array
        writer.write(c, 5, 5);

        // flush the stream again
        writer.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:cat.tv3.eng.rec.recomana.lupa.visualization.ClustersToJson.java

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

    String host = args[0];/*from ww w .  j  ava  2 s.c o m*/
    int port = Integer.parseInt(args[1]);
    Jedis jedis = new Jedis(host, port, 20000);

    // Cluster to binary tree visualitzation
    Map<String, String> attr_cluster = jedis.hgetAll("ClusterBinaryTree-Arrel");
    String cluster_name = attr_cluster.get("cluster_ids_name");

    JSONObject cluster;
    if (!cluster_name.equals("cluster_splited")) {
        cluster = new JSONObject();
        cluster.put("name", "arrel");
    } else {
        String id_left_centroid = attr_cluster.get("id_left_centroid");
        String id_right_centroid = attr_cluster.get("id_right_centroid");

        String hash_left = attr_cluster.get("hash_left");
        String hash_right = attr_cluster.get("hash_right");

        cluster = new JSONObject();
        cluster.put("name", "arrel");
        cluster.put("children", hashToJSONArrayRepresentationBinaryTree(id_left_centroid, hash_left, jedis,
                id_right_centroid, hash_right));
    }
    jedis.disconnect();

    Writer out = new BufferedWriter(
            new OutputStreamWriter(new FileOutputStream("data_toVisualize/cluster.json"), "UTF-8"));
    try {
        out.write(cluster.toJSONString());
    } finally {
        out.close();
    }
}

From source file:examples.nntp.post.java

public final static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;/*from   w w  w.j a v  a  2 s  .c o m*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0)
                break;

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0)
            header.addHeaderField("Organization", organization);

        if (references != null && organization.length() > 0)
            header.addHeaderField("References", references);

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        fileReader.close();

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:examples.nntp.PostMessage.java

public static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;// w  w  w  .  j av  a2  s.  c o m
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

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

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:com.zimbra.cs.db.MySQL.java

public static void main(String args[]) {
    // command line argument parsing
    Options options = new Options();
    CommandLine cl = Versions.parseCmdlineArgs(args, options);

    String outputDir = cl.getOptionValue("o");
    File outFile = new File(outputDir, "versions-init.sql");
    outFile.delete();//from  w w w  .  j ava2 s . co m

    try {
        String redoVer = com.zimbra.cs.redolog.Version.latest().toString();
        String outStr = "-- AUTO-GENERATED .SQL FILE - Generated by the MySQL versions tool\n" + "USE zimbra;\n"
                + "INSERT INTO zimbra.config(name, value, description) VALUES\n" + "\t('db.version', '"
                + Versions.DB_VERSION + "', 'db schema version'),\n" + "\t('index.version', '"
                + Versions.INDEX_VERSION + "', 'index version'),\n" + "\t('redolog.version', '" + redoVer
                + "', 'redolog version')\n" + ";\nCOMMIT;\n";

        Writer output = new BufferedWriter(new FileWriter(outFile));
        output.write(outStr);
        if (output != null)
            output.close();
    } catch (IOException e) {
        System.out.println("ERROR - caught exception at\n");
        e.printStackTrace();
        System.exit(-1);
    }
}

From source file:com.zimbra.cs.db.SQLite.java

public static void main(String args[]) {
    // command line argument parsing
    Options options = new Options();
    CommandLine cl = Versions.parseCmdlineArgs(args, options);

    String outputDir = cl.getOptionValue("o");
    File outFile = new File(outputDir, "versions-init.sql");
    outFile.delete();//w w w  .  j a v  a  2 s .c  o  m

    try {
        String redoVer = com.zimbra.cs.redolog.Version.latest().toString();
        String outStr = "-- AUTO-GENERATED .SQL FILE - Generated by the SQLite versions tool\n"
                + "INSERT INTO config(name, value, description) VALUES\n" + "\t('db.version', '"
                + Versions.DB_VERSION + "', 'db schema version');\n"
                + "INSERT INTO config(name, value, description) VALUES\n" + "\t('index.version', '"
                + Versions.INDEX_VERSION + "', 'index version');\n"
                + "INSERT INTO config(name, value, description) VALUES\n" + "\t('redolog.version', '" + redoVer
                + "', 'redolog version');\n";

        Writer output = new BufferedWriter(new FileWriter(outFile));
        output.write(outStr);
        output.close();
    } catch (IOException e) {
        System.out.println("ERROR - caught exception at\n");
        e.printStackTrace();
        System.exit(-1);
    }
}