Example usage for java.io BufferedWriter BufferedWriter

Introduction

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

Prototype

public BufferedWriter(Writer out, int sz) 

Source Link

Document

Creates a new buffered character-output stream that uses an output buffer of the given size.

Usage

From source file:Main.java

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

    String str = "from java2s.com!";

    StringWriter sw = new StringWriter();

    BufferedWriter bw = new BufferedWriter(sw, 200);

}

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From source file:Main.java

public static void writeToFile(String fileName, String xml) throws IOException {
    PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(fileName, true), 1024));
    out.println(xml);//  w  w w. j a v  a  2 s. c o m
    out.flush();
    out.close();
}

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From source file:Main.java

public static void writeToFile(final String str, final File file) {
    try {/* w  ww  .j  a v  a2s  . c  om*/
        final BufferedWriter output = new BufferedWriter(new FileWriter(file), 8192);
        output.write(str);
        output.close();
    } catch (final IOException exception) {
        exception.printStackTrace();
    }
}

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From source file:com.smart.common.officeFile.CSVUtils.java

/**
 *
 * @param exportData ?/*from www  .ja  v  a  2s .  co  m*/
 * @param rowMapper ??
 * @param outPutPath 
 * @param filename ??
 * @return
 */
public static File createCSVFile(List exportData, LinkedHashMap rowMapper, String outPutPath, String filename) {

    File csvFile = null;
    BufferedWriter csvFileOutputStream = null;
    try {
        csvFile = new File(outPutPath + filename + ".csv");
        // csvFile.getParentFile().mkdir();
        File parent = csvFile.getParentFile();
        if (parent != null && !parent.exists()) {
            parent.mkdirs();
        }
        csvFile.createNewFile();

        // GB2312?","
        csvFileOutputStream = new BufferedWriter(
                new OutputStreamWriter(new FileOutputStream(csvFile), "GB2312"), 1024);
        // 
        for (Iterator propertyIterator = rowMapper.entrySet().iterator(); propertyIterator.hasNext();) {
            java.util.Map.Entry propertyEntry = (java.util.Map.Entry) propertyIterator.next();
            csvFileOutputStream.write("\"" + propertyEntry.getValue().toString() + "\"");
            if (propertyIterator.hasNext()) {
                csvFileOutputStream.write(",");
            }
        }
        csvFileOutputStream.newLine();

        // 
        for (Iterator iterator = exportData.iterator(); iterator.hasNext();) {
            LinkedHashMap row = (LinkedHashMap) iterator.next();
            System.out.println(row);

            for (Iterator propertyIterator = row.entrySet().iterator(); propertyIterator.hasNext();) {
                java.util.Map.Entry propertyEntry = (java.util.Map.Entry) propertyIterator.next();
                // System.out.println(BeanUtils.getProperty(row, propertyEntry.getKey().toString()));
                csvFileOutputStream.write("\"" + propertyEntry.getValue().toString() + "\"");
                if (propertyIterator.hasNext()) {
                    csvFileOutputStream.write(",");
                }
            }

            //                for (Iterator propertyIterator = row.entrySet().iterator(); propertyIterator.hasNext();) {
            //                    java.util.Map.Entry propertyEntry = (java.util.Map.Entry) propertyIterator.next();
            //                    System.out.println(BeanUtils.getProperty(row, propertyEntry.getKey().toString()));
            //                    csvFileOutputStream.write("\""
            //                            + BeanUtils.getProperty(row, propertyEntry.getKey().toString()) + "\"");
            //                    if (propertyIterator.hasNext()) {
            //                        csvFileOutputStream.write(",");
            //                    }
            //                }
            if (iterator.hasNext()) {
                csvFileOutputStream.newLine();
            }
        }
        csvFileOutputStream.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            csvFileOutputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return csvFile;
}

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From source file:com.pentacog.mctracker.SaveServerListTask.java

@Override
protected Void doInBackground(final ArrayList<Server>... params) {
    File serverFile = new File(context.getFilesDir(), MCServerTrackerActivity.SERVER_CACHE_FILE);
    try {//from  w  w w.  j  av a2  s .  com
        if (!serverFile.exists()) {
            serverFile.createNewFile();
        }
        BufferedWriter bw = new BufferedWriter(new FileWriter(serverFile), 4000);

        JSONArray array = new JSONArray();
        for (Server server : params[0]) {
            array.put(server.toJSON());
        }

        bw.write(array.toString());
        bw.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

    context = null;
    return null;
}

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From source file:Main.java

public static void write(File file, String data) {
    BufferedWriter out = null;/*from   www .j  a  v a  2 s .co  m*/
    try {
        out = new BufferedWriter(new FileWriter(file), 1024);
        out.write(data);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (out != null) {
            try {
                out.flush();
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

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From source file:edu.usc.goffish.gofs.formats.gml.GMLWriter.java

public GMLWriter(OutputStream output, boolean writeIndentation, int bufferSize) {
    _output = new BufferedWriter(new OutputStreamWriter(output, GMLParser.GML_CHARSET), bufferSize);
    _writeIndentation = writeIndentation;
    _indentation = 0;/*w  w w  .j a  v a  2  s . c  om*/
}

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From source file:edu.caltech.ipac.firefly.server.util.DsvToDataGroup.java

public static void write(Writer writer, DataGroup data, CSVFormat format) throws IOException {

    BufferedWriter outf = new BufferedWriter(writer, IpacTableUtil.FILE_IO_BUFFER_SIZE);
    try {//  ww w  . j  a  v  a  2 s  .  com
        CSVPrinter printer = new CSVPrinter(outf, format);

        if (data != null && data.size() > 0) {
            for (DataType t : data.getDataDefinitions()) {
                printer.print(t.getKeyName());
            }
            printer.println();

            for (DataObject row : data.values()) {
                for (String s : row.getFormatedData()) {
                    printer.print(s.trim());
                }
                printer.println();
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (outf != null) {
            outf.close();
        }
    }
}

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From source file:com.exzogeni.dk.log.formatter.SimpleLogFormatter.java

@Override
public String format(@NonNull Thread thread, @NonNull StackTraceElement caller, @NonNull Throwable e) {
    final StringBuilder message = newMessageBuilder(thread, caller);
    final StringWriter trace = new StringWriter();
    final PrintWriter traceWriter = new PrintWriter(new BufferedWriter(trace, 512), true);
    try {/*  w  w w  . ja  v a2  s.  co m*/
        e.printStackTrace(traceWriter);
    } finally {
        traceWriter.flush();
        IOUtils.closeQuietly(traceWriter);
    }
    return message.append(trace.toString()).toString();
}

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From source file:gov.nih.nci.ncicb.tcga.dcc.dam.util.ThreadedBufferedWriterSlowTest.java

public void testCompareSpeed() throws IOException, InterruptedException {

    PrintWriter writer1 = null;/*from  www .ja  va2 s.c  o m*/
    PrintWriter writer2 = null;

    try {
        //noinspection IOResourceOpenedButNotSafelyClosed
        writer1 = new PrintWriter(new ThreadedBufferedWriter(new FileWriter(testOutputFile), BUFFER_SIZE));
        long before1 = System.currentTimeMillis();
        writeOutput(writer1);
        long after1 = System.currentTimeMillis();
        long diff1 = after1 - before1;
        System.out.println("Threaded: took " + diff1 + " milliseconds");
        //noinspection IOResourceOpenedButNotSafelyClosed
        writer2 = new PrintWriter(new BufferedWriter(new FileWriter(testCompareFile), BUFFER_SIZE));
        long before2 = System.currentTimeMillis();
        writeOutput(writer2);
        long after2 = System.currentTimeMillis();
        long diff2 = after2 - before2;
        System.out.println("Nonthreaded: took " + diff2 + " milliseconds");
        compareOutput();
        //assertTrue(diff2 >= diff1);
        System.out.println("Threaded is " + (diff2 - diff1) + " millis faster");
    } finally {
        IOUtils.closeQuietly(writer1);
        IOUtils.closeQuietly(writer2);
    }
}

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