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:Main.java

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

    FileInputStream fin = new FileInputStream(args[0]);
    GZIPInputStream gzin = new GZIPInputStream(fin);
    ReadableByteChannel in = Channels.newChannel(gzin);

    WritableByteChannel out = Channels.newChannel(System.out);
    ByteBuffer buffer = ByteBuffer.allocate(65536);
    while (in.read(buffer) != -1) {
        buffer.flip();/*  w w  w .  j ava2 s  .co  m*/
        out.write(buffer);
        buffer.clear();
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    FileInputStream is = new FileInputStream("your.keystore");

    KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
    keystore.load(is, "my-keystore-password".toCharArray());

    String alias = "myalias";
    Certificate cert = keystore.getCertificate(alias);

    File file = null;//w  w w.j a  v a  2  s  . c  o m
    byte[] buf = cert.getEncoded();

    FileOutputStream os = new FileOutputStream(file);
    os.write(buf);
    os.close();

    Writer wr = new OutputStreamWriter(os, Charset.forName("UTF-8"));
    wr.write(new sun.misc.BASE64Encoder().encode(buf));
    wr.flush();

}

From source file:Main.java

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

    byte b = 66;//w ww  .  j  a v  a2  s  . c o  m
    int i = 0;
    FileOutputStream fos = new FileOutputStream("C://test.txt");

    fos.write(b);

    fos.flush();

    FileInputStream fis = new FileInputStream("C://test.txt");

    // read till the end of the file
    while ((i = fis.read()) != -1) {
        // convert integer to character
        char c = (char) i;

        System.out.print(c);
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String zipname = "data.zip";
    FileInputStream fis = new FileInputStream(zipname);
    ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
    ZipEntry entry;/*from  w  w  w  .  j  a v  a2 s .  co m*/

    while ((entry = zis.getNextEntry()) != null) {
        System.out.println("Unzipping: " + entry.getName());

        int size;
        byte[] buffer = new byte[2048];

        FileOutputStream fos = new FileOutputStream(entry.getName());
        BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length);

        while ((size = zis.read(buffer, 0, buffer.length)) != -1) {
            bos.write(buffer, 0, size);
        }
        bos.flush();
        bos.close();
    }
    zis.close();
    fis.close();
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    String zipname = "data.txt.gz";
    String source = "data.txt.gz";
    GZIPInputStream zipin;//  w ww  . ja  v  a  2 s  . c  om

    FileInputStream in = new FileInputStream(zipname);
    zipin = new GZIPInputStream(in);

    byte[] buffer = new byte[sChunk];
    // decompress the file
    FileOutputStream out = new FileOutputStream(source);
    int length;
    while ((length = zipin.read(buffer, 0, sChunk)) != -1)
        out.write(buffer, 0, length);
    out.close();

    zipin.close();
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    Deflater def = new Deflater();
    byte[] input = new byte[1024];
    byte[] output = new byte[1024];

    FileInputStream fin = new FileInputStream("a.dat");
    FileOutputStream fout = new FileOutputStream("b.dat");

    int numRead = fin.read(input);

    def.setInput(input, 0, numRead);//from   ww  w  .ja  va  2s  . c om

    while (!def.needsInput()) {
        int numCompressedBytes = def.deflate(output, 0, output.length);
        if (numCompressedBytes > 0) {
            fout.write(output, 0, numCompressedBytes);
        }
    }
    def.finish();
    fin.close();
    fout.flush();
    fout.close();
    def.reset();
}

From source file:MainClass.java

public static void main(String[] args) {

    for (int i = 0; i < args.length; i++) {
        try {/*from  w ww .  j  a v a 2 s .  c  o m*/
            FileInputStream fin = new FileInputStream(args[i]);
            FileOutputStream fout = new FileOutputStream(args[i] + DEFLATE_SUFFIX);
            DeflaterOutputStream dos = new DeflaterOutputStream(fout);
            for (int c = fin.read(); c != -1; c = fin.read()) {
                dos.write(c);
            }
            dos.close();
            fin.close();
        } catch (IOException ex) {
            System.err.println(ex);
        }
    }
}

From source file:Main.java

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

    byte b = 66;/*from ww  w.j ava 2 s.  co m*/
    int i = 0;
    FileOutputStream fos = new FileOutputStream("C://test.txt", true);

    fos.write(b);

    fos.flush();

    FileInputStream fis = new FileInputStream("C://test.txt");

    // read till the end of the file
    while ((i = fis.read()) != -1) {
        // convert integer to character
        char c = (char) i;

        System.out.print(c);
    }

}

From source file:Main.java

public static void main(String[] args) {

    for (int i = 0; i < args.length; i++) {
        if (args[i].toLowerCase().endsWith(".dfl")) {
            try {
                FileInputStream fin = new FileInputStream(args[i]);
                InflaterInputStream iis = new InflaterInputStream(fin);
                FileOutputStream fout = new FileOutputStream(args[i].substring(0, args[i].length() - 4));
                for (int c = iis.read(); c != -1; c = iis.read()) {
                    fout.write(c);/*from w ww . j  a  va  2  s.  c o m*/
                }
                fout.close();
            } catch (IOException ex) {
                System.err.println(ex);
            }
        } else {
            System.err.println(args[i] + " does not appear to be a deflated file.");
        }
    }
}

From source file:Main.java

public static void main(String[] args) {
    FTPClient client = new FTPClient();
    FileInputStream fis = null;//from  w ww.j  a va2 s .  c  o  m

    client.connect("ftp.domain.com");
    client.login("admin", "secret");

    String filename = "Touch.dat";
    fis = new FileInputStream(filename);
    client.storeFile(filename, fis);
    client.logout();
    fis.close();
}