Example usage for java.io FileReader FileReader

Introduction

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

Prototype

public FileReader(FileDescriptor fd) 

Source Link

Document

Creates a new FileReader , given the FileDescriptor to read, using the platform's java.nio.charset.Charset#defaultCharset() default charset .

Usage

From source file:formats.db.fileformats.csv.RunnerCsv.java

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

    CSVFormat format = CSVFormat.RFC4180.withHeader().withDelimiter(',');

    //initialize the CSVParser object

    CSVParser parser = new CSVParser(new FileReader("D:\\customers.csv"), format);

    List<Customers> customersList = new ArrayList<Customers>();
    for (CSVRecord record : parser) {
        Customers customers = new Customers();

        customers.setId_cs(Integer.parseInt(record.get("id_cs")));
        customers.setF_name(record.get("f_name"));
        customers.setL_name(record.get("l_name"));
        customers.setDiscount(Integer.parseInt(record.get("discount")));
        customers.setLicense(record.get("license"));

        customersList.add(customers);//from w ww .ja  v a 2  s.c om
    }
    //close the parser
    parser.close();

    System.out.println(customersList);
}

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From source file:CollateApp.java

public static void main(String args[]) {
    if (args.length != 1) {
        System.out.println("Usage: java CollateApp file");
        System.exit(0);//ww  w  .  jav a 2s  .c o  m
    }
    Locale defaultLocale = Locale.getDefault();
    RuleBasedCollator collator = (RuleBasedCollator) Collator.getInstance(defaultLocale);
    Vector keyVector = new Vector();
    try {
        BufferedReader in = new BufferedReader(new FileReader(args[0]));
        String line;
        while ((line = in.readLine()) != null)
            keyVector.addElement(collator.getCollationKey(line));
        in.close();
    } catch (Exception ex) {
        System.out.println(ex);
        System.exit(0);
    }
    CollationKey keys[] = new CollationKey[keyVector.size()];
    for (int i = 0; i < keys.length; ++i)
        keys[i] = (CollationKey) keyVector.elementAt(i);
}

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From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document();
    StyleSheet st = new StyleSheet();
    st.loadTagStyle("body", "leading", "16,0");
    PdfWriter.getInstance(document, new FileOutputStream("html2.pdf"));
    document.open();/*from   w w  w.  j  a  va2  s. co m*/
    ArrayList p = HTMLWorker.parseToList(new FileReader("example.html"), st);
    for (int k = 0; k < p.size(); ++k)
        document.add((Element) p.get(k));
    document.close();
}

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From source file:CollateApp.java

public static void main(String args[]) {
    if (args.length != 1) {
        System.out.println("Usage: java CollateApp file");
        System.exit(0);/*from  w ww  .j  a v  a2  s .com*/
    }
    Locale defaultLocale = Locale.getDefault();
    RuleBasedCollator collator = (RuleBasedCollator) Collator.getInstance(defaultLocale);
    Vector<Object> keyVector = new Vector<Object>();
    try {
        BufferedReader in = new BufferedReader(new FileReader(args[0]));
        String line;
        while ((line = in.readLine()) != null)
            keyVector.addElement(collator.getCollationKey(line));
        in.close();
    } catch (Exception ex) {
        System.out.println(ex);
        System.exit(0);
    }
    CollationKey keys[] = new CollationKey[keyVector.size()];
    for (int i = 0; i < keys.length; ++i)
        keys[i] = (CollationKey) keyVector.elementAt(i);
}

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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();/* w  w w. ja va 2  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();
}

---

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document();
    StyleSheet styles = new StyleSheet();
    styles.loadTagStyle("ol", "leading", "16,0");
    PdfWriter.getInstance(document, new FileOutputStream("html3.pdf"));
    document.open();//from   w ww  . ja v  a  2  s  .  com
    ArrayList objects;
    objects = HTMLWorker.parseToList(new FileReader("data.html"), styles);
    for (int k = 0; k < objects.size(); ++k)
        document.add((Element) objects.get(k));
    document.close();
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn.createStatement();

    st.executeUpdate("create table survey (Id int, b CLOB);");

    PreparedStatement pstmt = conn.prepareStatement("INSERT INTO survey VALUES(1,?)");

    File file = new File("c:/Java_Dev/data.txt");

    FileReader reader = new FileReader(file);
    pstmt.setCharacterStream(1, reader);

    pstmt.execute();/*from   w  ww  .j  a  va  2  s .c o  m*/

    ResultSet resultSet = pstmt.executeQuery("select b from survey ");

    File data = new File("C:\\a.txt");
    Reader dataReader = resultSet.getCharacterStream(1);
    FileWriter writer = new FileWriter(data);
    char[] buffer = new char[1];
    while (dataReader.read(buffer) > 0) {
        writer.write(buffer);
    }
    writer.close();

    reader.close();
    st.close();
    conn.close();
}

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From source file:RegExpExample.java

public static void main(String args[]) {
    String fileName = "RETestSource.java";

    String unadornedClassRE = "^\\s*class (\\w+)";
    String doubleIdentifierRE = "\\b(\\w+)\\s+\\1\\b";

    Pattern classPattern = Pattern.compile(unadornedClassRE);
    Pattern doublePattern = Pattern.compile(doubleIdentifierRE);
    Matcher classMatcher, doubleMatcher;

    int lineNumber = 0;

    try {/*w  w  w .j a  va2 s  . c om*/
        BufferedReader br = new BufferedReader(new FileReader(fileName));
        String line;

        while ((line = br.readLine()) != null) {
            lineNumber++;

            classMatcher = classPattern.matcher(line);
            doubleMatcher = doublePattern.matcher(line);

            if (classMatcher.find()) {
                System.out.println("The class [" + classMatcher.group(1) + "] is not public");
            }

            while (doubleMatcher.find()) {
                System.out.println("The word \"" + doubleMatcher.group(1) + "\" occurs twice at position "
                        + doubleMatcher.start() + " on line " + lineNumber);
            }
        }
    } catch (IOException ioe) {
        System.out.println("IOException: " + ioe);
        ioe.printStackTrace();
    }
}

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From source file:jsonpractice.jsonpractice1.java

public static void main(String[] args) throws IOException, ParseException {
    JSONParser parser = new JSONParser();
    try {/*from   ww  w  . j  av a2  s .  c o m*/
        Object obj = parser.parse(new FileReader("C:\\Users\\user\\Documents\\CountryJSONFile.json"));
        JSONObject jsonobject = (JSONObject) obj;

        String nameOfCountry = (String) jsonobject.get("Name");
        System.out.println("Name of the Country: " + nameOfCountry);

        long population = (long) jsonobject.get("Population");
        System.out.println("Population of the country is : " + population);

        System.out.println("States are: ");
        JSONArray listOfStates = (JSONArray) jsonobject.get("states");

        Iterator<String> iterator = listOfStates.iterator();
        while (iterator.hasNext()) {
            System.out.println(iterator.next());
        }
    } catch (FileNotFoundException e) {
    } catch (IOException e) {
    } catch (ParseException e) {
    }

}

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From source file:com.mycompany.airportdatabasebuilder.DatabaseBuilder.java

public static void main(String[] args) {
    try {//from   w ww .j  a  v  a  2 s  . c  om
        Dao dao = new Dao();
        JdbcTemplate jdbcTemplate = dao.getJdbcTemplate();
        CSVReader reader = new CSVReader(new FileReader("airportdata2.csv"));
        String[] nextLine;
        int i = 0;
        while ((nextLine = reader.readNext()) != null) {
            if (nextLine[4] == null || nextLine[4].equals(""))
                System.out.println("empty code found");
            else {
                jdbcTemplate.update(
                        "INSERT INTO airportdata (airport_name, city, country, iata) VALUES(?, ?, ?, ?)",
                        nextLine[1], nextLine[2], nextLine[3], nextLine[4]);
            }
            i++;
        }

        // Airport(1)/ City(2)/ Country(3)/ Code(4)
        System.out.println(i + " rows were read");
    } catch (FileNotFoundException ex) {
        Logger.getLogger(DatabaseBuilder.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(DatabaseBuilder.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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