Example usage for java.io FileInputStream FileInputStream

Introduction

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

Prototype

public FileInputStream(FileDescriptor fdObj)

Source Link

Document

Creates a FileInputStream by using the file descriptor fdObj, which represents an existing connection to an actual file in the file system.

Usage

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    Vector v = new Vector(3);
    v.add(new FileInputStream("/a/b"));
    v.add(new FileInputStream("yourfile.bar"));
    v.add(new FileInputStream("/yourfile.txt"));

    Enumeration e = v.elements();
    SequenceInputStream sis = new SequenceInputStream(e);
    InputStreamReader isr = new InputStreamReader(sis);
    BufferedReader br = new BufferedReader(isr);
    String line;//from   ww  w . j a  va  2s.  c  o m
    while ((line = br.readLine()) != null) {
        System.out.println(line);
    }
    br.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String source = "s.txt";
    String destination = "d.txt";

    FileInputStream fis = new FileInputStream(source);
    FileOutputStream fos = new FileOutputStream(destination);

    FileChannel fci = fis.getChannel();
    FileChannel fco = fos.getChannel();

    ByteBuffer buffer = ByteBuffer.allocate(1024);

    while (true) {
        int read = fci.read(buffer);

        if (read == -1)
            break;
        buffer.flip();// w ww  . j av  a  2  s. co m
        fco.write(buffer);
        buffer.clear();
    }
}

From source file:MainClass.java

public static void main(String[] a) throws Exception {
    String fileName = "BigFile.txt";
    FileInputStream fis = new FileInputStream(fileName);
    JLabel filenameLabel = new JLabel(fileName, JLabel.RIGHT);
    Object message[] = { "Reading:", filenameLabel };
    ProgressMonitorInputStream pmis = new ProgressMonitorInputStream(null, message, fis);
    InputStreamReader isr = new InputStreamReader(pmis);
    BufferedReader br = new BufferedReader(isr);
    String line;//from   ww  w .  ja  va2  s .  co m
    while ((line = br.readLine()) != null) {
        System.out.println(line);
    }
    br.close();
}

From source file:CopyBytes.java

public static void main(String[] args) throws IOException {
    File inputFile = new File("input.txt");
    File outputFile = new File("output.txt");

    FileInputStream in = new FileInputStream(inputFile);
    FileOutputStream out = new FileOutputStream(outputFile);
    int c;/*from   w  w  w  .ja  v  a2s .  co m*/

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

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

From source file:CopyChannels.java

public static void main(String[] args) throws Exception {
    String fromFileName = "from.txt";
    String toFileName = "to.txt";
    FileChannel in = new FileInputStream(fromFileName).getChannel();
    FileChannel out = new FileOutputStream(toFileName).getChannel();

    ByteBuffer buff = ByteBuffer.allocate(32 * 1024);

    while (in.read(buff) > 0) {
        buff.flip();// w  w  w .  ja  v a 2 s .  c  om
        out.write(buff);
        buff.clear();
    }

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

From source file:BufferedCopy.java

public static void main(String[] args) throws Exception {
    BufferedInputStream bis = null;
    BufferedOutputStream bos = null;

    FileInputStream fis = new FileInputStream(args[0]);
    bis = new BufferedInputStream(fis);

    FileOutputStream fos = new FileOutputStream(args[1]);
    bos = new BufferedOutputStream(fos);

    int byte_;
    while ((byte_ = bis.read()) != -1)
        bos.write(byte_);
}

From source file:Main.java

  public static void main(String[] args) throws Exception {
  Properties prop = new Properties();
  String fileName = "app.config";
  InputStream is = new FileInputStream(fileName);

  prop.load(is);// w w  w .  ja va2 s .  co  m

  System.out.println(prop.getProperty("app.name"));
  System.out.println(prop.getProperty("app.version"));

  System.out.println(prop.getProperty("app.vendor", "Java"));
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    char[] oldpass = args[0].toCharArray();
    char[] newpass = args[1].toCharArray();
    String name = "mykeystore";
    FileInputStream in = new FileInputStream(name);
    KeyStore ks = KeyStore.getInstance("JKS");
    ks.load(in, oldpass);//from  w  ww.ja  v  a 2 s.  c  o m
    in.close();
    FileOutputStream output = new FileOutputStream(name);
    ks.store(output, newpass);
    output.close();
}

From source file:Main.java

public static void main(String[] args) {
    File file = null;/*from  ww w . j a  v a  2s  .c o  m*/
    WordExtractor extractor = null;
    try {

        file = new File("c:\\New.doc");
        FileInputStream fis = new FileInputStream(file.getAbsolutePath());
        HWPFDocument document = new HWPFDocument(fis);
        extractor = new WordExtractor(document);
        String[] fileData = extractor.getParagraphText();
        for (int i = 0; i < fileData.length; i++) {
            if (fileData[i] != null)
                System.out.println(fileData[i]);
        }
    } catch (Exception exep) {
    }
}

From source file:Converter.java

public static void main(String args[]) throws Exception {
    FileInputStream fis = new FileInputStream(new File("input.txt"));
    BufferedReader in = new BufferedReader(new InputStreamReader(fis, "SJIS"));

    FileOutputStream fos = new FileOutputStream(new File("output.txt"));
    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(fos, "UTF8"));

    int len = 80;
    char buf[] = new char[len];

    int numRead;/*from w w  w .j ava2s. c o m*/
    while ((numRead = in.read(buf, 0, len)) != -1)
        out.write(buf, 0, numRead);
    out.close();
    in.close();
}