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:Main.java

public static void main(String[] argv) throws Exception {

    FileInputStream is = new FileInputStream(new File("your"));

    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    java.security.cert.Certificate cert = cf.generateCertificate(is);
}

From source file:MainClass.java

public static void main(String[] a) {
    File aFile = new File("C:/myFile.text");
    FileOutputStream outputFile = null; // Place to store an output stream
                                        // reference
    try {/*w w  w . j  a  v a  2  s. co  m*/
        // Create the stream opened to write
        outputFile = new FileOutputStream(aFile);
    } catch (FileNotFoundException e) {
        e.printStackTrace(System.err);
        System.exit(1);
    }
    // Get the channel for the file
    FileChannel outputChannel = outputFile.getChannel();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File root = new File("c:\\");

    String[] extensions = { "xml", "java", "dat" };
    boolean recursive = true;

    Collection files = FileUtils.listFiles(root, extensions, recursive);

    for (Iterator iterator = files.iterator(); iterator.hasNext();) {
        File file = (File) iterator.next();
        System.out.println("File = " + file.getAbsolutePath());
    }//from  w  ww . j a v  a  2 s .  c om
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ZipFile zipFile = new ZipFile(new File("testfile.zip"), ZipFile.OPEN_READ, Charset.defaultCharset());
    ZipEntry entry = zipFile.getEntry("fileName");

}

From source file:Main.java

License:asdf

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

    chooser.setDialogTitle("asdf");
    chooser.showDialog(new JFrame(""), null);
    File curFile = chooser.getSelectedFile();
}

From source file:Main.java

public static void main(String[] args) {
    String path = System.getProperty("user.dir", ".");

    File dir = new File(path);

    JFileChooser jfc = new JFileChooser(dir);
    int result = jfc.showOpenDialog(null);

    switch (result) {
    case JFileChooser.CANCEL_OPTION:
        System.out.println("User cancelled OPEN dialog.");
        break;/*w w w.  ja  va 2s.c  o m*/
    case JFileChooser.APPROVE_OPTION:
        System.out.println("User chose file: " + jfc.getSelectedFile());
        break;
    case JFileChooser.ERROR_OPTION:
        System.out.println("User encountered an error");
        break;
    default:
        System.out.println("Confused");
        break;
    }

    System.exit(0);
}

From source file:Main.java

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

    chooser.setDialogType(JFileChooser.SAVE_DIALOG);
    chooser.showDialog(new JFrame(""), null);
    File curFile = chooser.getSelectedFile();
}

From source file:Main.java

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

    chooser.resetChoosableFileFilters();
    chooser.showDialog(new JFrame(""), null);
    File curFile = chooser.getSelectedFile();
}

From source file:Main.java

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

    chooser.setSelectedFiles(new File[] { f });
    chooser.showDialog(new JFrame(""), null);
    File curFile = chooser.getSelectedFile();
}

From source file:Main.java

public static void main(String args[]) throws IOException {
    File file = new File("your file path.jpg");
    BufferedImage image = ImageIO.read(file);

    for (int i = 0; i < image.getHeight(); i++) {
        for (int j = 0; j < image.getWidth(); j++) {
            int color = image.getRGB(j, i);
            // convert the color to a readable format
            String clr = Integer.toHexString(color).substring(2);
            System.out.println(clr);
        }/*from  w  ww  .ja va 2s .  c o  m*/
    }
}