Example usage for java.io File File

Introduction

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

Prototype

public File(URI uri)

Source Link

Document

Creates a new File instance by converting the given file: URI into an abstract pathname.

Usage

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    File fromFile = new File("fromFile.txt");
    File toFile = new File("toFile.txt");
    FileInputStream inFile = new FileInputStream(fromFile);
    FileOutputStream outFile = new FileOutputStream(toFile);
    FileChannel inChannel = inFile.getChannel();
    FileChannel outChannel = outFile.getChannel();
    int bytesWritten = 0;
    long byteCount = inChannel.size();
    while (bytesWritten < byteCount) {
        bytesWritten += inChannel.transferTo(bytesWritten, byteCount - bytesWritten, outChannel);
    }/*from w w w. java  2s  . co  m*/
    inFile.close();
    outFile.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File f = new File("index.html");
    JEditorPane jep = new JEditorPane(f.toURI().toURL());

    JScrollPane sp = new JScrollPane(jep);
    sp.setPreferredSize(new Dimension(400, 200));

    JOptionPane.showMessageDialog(null, sp);
}

From source file:MainClass.java

public static void main(String[] Args) {
    String filepath = "C:/myFile.txt";
    File aFile = new File(filepath);
    FileOutputStream outputFile = null;
    if (aFile.isFile()) {
        File newFile = aFile;//w w w . jav  a  2 s  .c  o  m
        do {
            String name = newFile.getName();
            int period = name.indexOf('.');
            newFile = new File(newFile.getParent(),
                    name.substring(0, period) + "_old" + name.substring(period));
        } while (newFile.exists());
        aFile.renameTo(newFile);
    }
    try {
        outputFile = new FileOutputStream(aFile);
        System.out.println("myFile.txt output stream created");
    } catch (FileNotFoundException e) {
        e.printStackTrace(System.err);
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    File f = new File("name.txt");

    if (!f.exists()) {
        System.out.println("File not found.");
        return;//from   www  .  j av  a2 s.c  om
    }
    if (f.canRead())
        System.out.println("  Readable");
    else
        System.out.println("  Not Readable");

    if (f.canWrite())
        System.out.println("  Writable");
    else
        System.out.println("  Not Writable");
    System.out.println("  Last modified on " + new Date(f.lastModified()));

    long t = Calendar.getInstance().getTimeInMillis();
    if (!f.setLastModified(t))
        System.out.println("Can't set time.");

    if (!f.setReadOnly())
        System.out.println("Can't set to read-only.");

    if (f.canRead())
        System.out.println("  Readable");
    else
        System.out.println("  Not Readable");

    if (f.canWrite())
        System.out.println("  Writable");
    else
        System.out.println("  Not Writable");
    System.out.println("  Last modified on " + new Date(f.lastModified()));

    if (!f.setWritable(true, false))
        System.out.println("Can't return to read/write.");

    if (f.canRead())
        System.out.println("  Readable");
    else
        System.out.println("  Not Readable");

    if (f.canWrite())
        System.out.println("  Writable");
    else
        System.out.println("  Not Writable");
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JFileChooser chooser = new JFileChooser();
    File f = new File(new File(".").getCanonicalPath());
    chooser.setCurrentDirectory(f);//  w w w .ja va 2s.co  m
    chooser.setCurrentDirectory(null);
    chooser.showOpenDialog(null);
    AccessibleContext obj = chooser.getAccessibleContext();

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    FileChannel rwChannel = new RandomAccessFile(new File("test.txt"), "rw").getChannel();
    FileChannel roChannel = new RandomAccessFile(new File("test.txt"), "r").getChannel();

    FileChannel pvChannel = new RandomAccessFile(new File("text.txt"), "rw").getChannel();
    ByteBuffer pvBuf = roChannel.map(FileChannel.MapMode.READ_WRITE, 0, (int) rwChannel.size());
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    File file = new File("test.xml");

    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLStreamReader reader = inputFactory.createXMLStreamReader(new FileInputStream(file));

    while (reader.getEventType() == 6)
        reader.next();//from   w w w.ja  va 2s  .com

    int eventTypeID = reader.next();
    System.out.println("Hello " + reader.getText());
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    File file = new File("text.xml");

    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLStreamReader reader = inputFactory.createXMLStreamReader(new FileInputStream(file));

    int eventTypeID = reader.nextTag();

    eventTypeID = reader.nextTag();//from w  w w.  j  a v  a  2  s  .c  o  m

    eventTypeID = reader.next();
    System.out.println("Hello " + reader.getText());
}

From source file:MediaPlayerDemo.java

public static void main(String args[]) {
    Player player;//  ww w  .j a v a 2  s.c om

    File file = new File("yourFile");

    player = Manager.createPlayer(file.toURI().toURL());
    //    player.addControllerListener(new EventHandler());
    player.start(); // start player

    player.close();

    Component visual = player.getVisualComponent();
    Component control = player.getControlPanelComponent();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File aFile = new File("main.java");
    FileInputStream inFile = new FileInputStream(aFile);
    FileChannel inChannel = inFile.getChannel();
    ByteBuffer lengthBuf = ByteBuffer.allocate(8);
    while (true) {
        if (inChannel.read(lengthBuf) == -1) {
            break;
        }/* w  ww .j  a  v  a 2  s . c  om*/
        lengthBuf.flip();
        int strLength = (int) lengthBuf.getDouble();
        ByteBuffer buf = ByteBuffer.allocate(2 * strLength + 8);
        if (inChannel.read(buf) == -1) {
            break;
        }
        buf.flip();
        byte[] strChars = new byte[2 * strLength];
        buf.get(strChars);
        System.out.println(strLength);
        System.out.println(ByteBuffer.wrap(strChars).asCharBuffer());
        System.out.println(buf.getLong());
        lengthBuf.clear();
    }
    inFile.close();
}