Example usage for java.io FileReader read

Introduction

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

Prototype

public int read() throws IOException 

Source Link

Document

Reads a single character.

Usage

From source file:CopyCharacters.java

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

    try {/*w  ww.  j  av a2  s  .  c om*/
        inputStream = new FileReader("xanadu.txt");
        outputStream = 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:yax.test.TestOptions.java

static String getinput(String filename) throws IOException {
    StringBuilder buf = new StringBuilder();
    FileReader file = new FileReader(filename);
    int c;/*from   w  ww  .ja v  a 2  s .  co m*/

    while ((c = file.read()) > 0) {
        buf.append((char) c);
    }
    return buf.toString();
}

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From source file:org.wso2.carbon.registry.registry.extensions.utills.FileManagerUtills.java

public static void copyFile(File sourceFile, String destinationPath) throws IOException {
    File destinationFile = new File(destinationPath);

    FileReader in = new FileReader(sourceFile);
    FileWriter out = new FileWriter(destinationFile);
    int c;/*from   w  ww  .j av  a 2 s  .c  o  m*/

    while ((c = in.read()) != -1)
        out.write(c);

    in.close();
    out.close();
}

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From source file:Util.commont.Config.java

public static void initConfig(Plash plash) {
    FileReader fr = null;
    try {//  w  w w .jav  a 2  s.  c o m
        File f = new File("resource/uiConfig.json");
        fr = new FileReader(f);
        String jsonStr = "";
        int k;
        while ((k = fr.read()) != -1)
            jsonStr += (char) k;
        JSONObject obj = new JSONObject(jsonStr);
        colorP = obj.getString("colorP");
        colorS = obj.getString("colorS");
        colorT = obj.getString("colorT");
        height = obj.getString("height");
        width = obj.getString("width");
        type = obj.getString("type");
        logo = obj.getString("logo");
        year_version = obj.getString("year_version");
        copyright = obj.getString("copyright");
        appName = obj.getString("appName");
        plash.init();
    } catch (FileNotFoundException ex) {
        Logger.getLogger(Config.class.getName()).log(Level.SEVERE, null, ex);
    } catch (JSONException ex) {
        Logger.getLogger(Config.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(Config.class.getName()).log(Level.SEVERE, null, ex);
    } finally {
        try {
            fr.close();
        } catch (IOException ex) {
            Logger.getLogger(Config.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

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From source file:org.sonatype.nexus.test.utils.FileTestingUtils.java

public static void fileCopy(File from, File dest) throws IOException {
    // we may also need to create any parent directories
    if (dest.getParentFile() != null && !dest.getParentFile().exists()) {
        dest.getParentFile().mkdirs();/*w w  w. j a  v a 2  s  .com*/
    }

    FileReader fileReader = new FileReader(from);

    FileWriter fos = new FileWriter(dest);

    int readChar = -1;
    while ((readChar = fileReader.read()) != -1) {
        fos.write(readChar);
    }

    // close everything
    fileReader.close();
    fos.close();
}

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From source file:org.wso2.esb.integration.common.utils.common.FileManager.java

public static void copyFile(File sourceFile, String destinationPath) throws IOException {
    File destinationFile = new File(destinationPath);

    FileReader in = new FileReader(sourceFile);
    FileWriter out = new FileWriter(destinationFile);
    int c;/*from   w  w w .  j  a v a 2 s  .co  m*/
    try {
        while ((c = in.read()) != -1) {
            out.write(c);
        }
    } finally {
        try {
            in.close();
        } catch (IOException e) {
            //ignore
        }
        try {
            out.close();
        } catch (IOException e) {
            //ignore
        }
    }

}

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From source file:com.netcrest.pado.internal.security.AESCipher.java

private static byte[] getUserPrivateKey() throws IOException {
    byte[] privateKey = null;

    String estr;//from   www .  jav  a2s  .c o m
    String certificateFilePath = PadoUtil.getProperty(Constants.PROP_SECURITY_AES_USER_CERTIFICATE,
            "security/user.cer");
    if (certificateFilePath.startsWith("/") == false) {

        // TODO: Make server files relative to PADO_HOME also.
        if (PadoUtil.isPureClient()) {
            String padoHome = PadoUtil.getProperty(Constants.PROP_HOME_DIR);
            certificateFilePath = padoHome + "/" + certificateFilePath;
        }
    }
    File file = new File(certificateFilePath);
    if (file.exists() == false) {
        FileWriter writer = null;
        try {
            privateKey = AESCipher.getPrivateKey();
            Base64 base64 = new Base64(0); // no line breaks
            estr = base64.encodeToString(privateKey);
            writer = new FileWriter(file);
            writer.write(estr);
        } finally {
            if (writer != null) {
                writer.close();
            }
        }
    } else {
        FileReader reader = null;
        try {
            reader = new FileReader(file);
            StringBuffer buffer = new StringBuffer(2048);
            int c;
            while ((c = reader.read()) != -1) {
                buffer.append((char) c);
            }
            estr = buffer.toString();
        } finally {
            if (reader != null) {
                reader.close();
            }
        }
    }
    Base64 base64 = new Base64(0); // no line breaks
    privateKey = base64.decode(estr);
    return privateKey;
}

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From source file:com.endofhope.neurasthenia.bayeux.BayeuxMessage.java

private static String getString(String location) throws IOException {
    StringBuilder sb = new StringBuilder();
    FileReader fr = new FileReader(location);
    int oneInt = -1;
    while (-1 != (oneInt = fr.read())) {
        sb.append((char) oneInt);
    }/*from  w ww. j  a  v  a 2 s  . c o  m*/
    fr.close();
    return sb.toString();
}

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From source file:edu.clemson.lph.utils.CSVParserWrapper.java

private static void stripNewLines(File fIn, File fOut) {
    FileReader rIn = null;
    FileWriter wOut = null;/*from  w  w  w .  j a va2 s  .  com*/
    try {
        rIn = new FileReader(fIn);
        wOut = new FileWriter(fOut);
        int iQuoteCount = 0;
        char cLast = '\0';
        char cThis = '\0';
        int iThis = rIn.read();
        while (iThis >= 0) {
            cThis = (char) iThis;
            if (cThis == '\"') {
                iQuoteCount++;
            }
            if (cThis == '\n' || cThis == '\r') {
                if ((iQuoteCount % 2) > 0) {
                    //               System.err.println("Removed new line after " + iQuoteCount + " quotes");
                    //               new Exception("Removed new line after " + iQuoteCount + " quotes").printStackTrace();
                    //               System.exit(1);
                    cThis = ' ';
                } else {
                    iQuoteCount = 0;
                }
            }
            wOut.append(cThis);
            cLast = cThis;
            iThis = rIn.read();
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        logger.error(e);
    } finally {
        try {
            if (rIn != null)
                rIn.close();
            if (wOut != null) {
                wOut.flush();
                wOut.close();
            }
        } catch (IOException e) {
            logger.error(e);
        }
    }
}

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From source file:es.csic.iiia.planes.cli.Cli.java

/**
 * Parse the provided list of arguments according to the program's options.
 * //from w  w  w  . ja  va2 s. co m
 * @param in_args
 *            list of input arguments.
 * @return a configuration object set according to the input options.
 */
private static Configuration parseOptions(String[] in_args) {
    CommandLineParser parser = new PosixParser();
    CommandLine line = null;
    Properties settings = loadDefaultSettings();

    try {
        line = parser.parse(options, in_args);
    } catch (ParseException ex) {
        Logger.getLogger(Cli.class.getName()).log(Level.SEVERE, ex.getLocalizedMessage(), ex);
        showHelp();
    }

    if (line.hasOption('h')) {
        showHelp();
    }

    if (line.hasOption('d')) {
        dumpSettings();
    }

    if (line.hasOption('s')) {
        String fname = line.getOptionValue('s');
        try {
            settings.load(new FileReader(fname));
        } catch (IOException ex) {
            throw new IllegalArgumentException("Unable to load the settings file \"" + fname + "\"");
        }
    }

    // Apply overrides
    settings.setProperty("gui", String.valueOf(line.hasOption('g')));
    settings.setProperty("quiet", String.valueOf(line.hasOption('q')));
    Properties overrides = line.getOptionProperties("o");
    settings.putAll(overrides);

    String[] args = line.getArgs();
    if (args.length < 1) {
        showHelp();
    }
    settings.setProperty("problem", args[0]);

    Configuration c = new Configuration(settings);
    System.out.println(c.toString());
    /**
     * Modified by Guillermo B. Print settings to a result file, titled
     * "results.txt"
     */
    try {
        FileWriter fw = new FileWriter("results.txt", true);
        BufferedWriter bw = new BufferedWriter(fw);
        PrintWriter out = new PrintWriter(bw);
        String[] results = c.toString().split("\n");
        // out.println(results[8]);

        for (String s : results) {
            out.println(s);

        }
        // out.println(results[2]);
        // out.println(results[8]);
        out.close();
    } catch (IOException e) {
    }

    /**
     * Modified by Ebtesam Save settings to a .csv file, titled
     * "resultsCSV.csv"
     */

    try {
        FileWriter writer = new FileWriter("resultsCSV.csv", true);
        FileReader reader = new FileReader("resultsCSV.csv");

        String header = "SAR Strategy,# of Searcher UAVs,# of Survivors,"
                + "# of Survivors rescued,Min.Time needed to rescue Survivors,Mean. Time needed to rescue Survivors,Max. Time needed to rescue Survivors,"
                + "# of Survivors found,Min. Time needed to find Survivors,Mean Time needed to find Survivors,Max. Time needed to find Survivors,"
                + "Running Time of Simulation\n";
        if (reader.read() == -1) {
            writer.append(header);
            writer.append("\n");
        }
        reader.close();
        String[] results = c.toString().split("\n");
        writer.append(results[2].substring(10));
        writer.append(",");
        writer.append(results[20].substring(11));
        writer.append(",");
        writer.append(results[30].substring(18));
        writer.write(",");
        writer.close();
    } catch (IOException e) {
    }

    if (line.hasOption('t')) {
        System.exit(0);
    }
    return c;
}

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