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[] args) {
    File f = new File("c:/a/b/a/test.txt");

    URL uri;// w  ww  . j a  v a2 s .  c  o  m
    try {
        uri = f.toURL();
        System.out.println("uri: " + uri);
    } catch (MalformedURLException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {
    File games = new File("C:\\Test");
    File[] files = games.listFiles();
    for (File file : files) {
        System.out.println(file + " is a " + (file.isDirectory() ? "directory" : "file"));
    }//from w  w w  .j  a  va  2s. c o  m
    String[] xfiles = games.list();
    for (String file : xfiles) {
        System.out.println("File = " + file);
    }
    FilenameFilter filter = new FilenameFilter() {
        public boolean accept(File dir, String name) {
            if (name.endsWith(".txt")) {
                return true;
            }
            return false;
        }
    };

    File[] yfiles = games.listFiles(filter);
    for (File doc : yfiles) {
        System.out.println("Doc file = " + doc);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File f = new File("hello.txt");
    FileReader fr = new FileReader(f);

    char[] c = new char[(int) f.length()];
    char[] cnew = new char[(int) f.length()];
    StringBuffer sbuf = new StringBuffer();
    fr.read(c, 0, (int) f.length());

    int len = (int) f.length();

    for (int i = 0, j = len - 1; i < len; i++, j--) {
        cnew[i] = c[j];/* w w w.  j  a v a  2s .  com*/
        sbuf.append(cnew[i]);
    }

    System.out.println(sbuf.toString());
    fr.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File f = new File("Main.java");
    FileReader fr = new FileReader(f);

    char[] c = new char[(int) f.length()];
    char[] cnew = new char[(int) f.length()];
    StringBuffer sbuf = new StringBuffer();
    fr.read(c, 0, (int) f.length());

    int len = (int) f.length();

    for (int i = 0, j = len - 1; i < len; i++, j--) {
        cnew[i] = c[j];//from   ww w .  ja v a 2  s  . com
        sbuf.append(cnew[i]);
    }

    System.out.println(sbuf.toString());
    fr.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileWriter fileWriter = new FileWriter(new File("c:/abc.txt"), true);
    fileWriter.append("java2s.com");
    fileWriter.close();/*from www .ja  va2s  . c o  m*/

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileWriter fileWriter = new FileWriter(new File("c:/abc.txt"));
    fileWriter.append("java2s.com");
    fileWriter.close();/*from ww w  .  j  av a  2 s .  com*/

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileReader fileReader = new FileReader(new File("c:/abc.txt"));
    System.out.println(fileReader.read());
    fileReader.close();//w  w w  . j  a  v  a  2  s .  c o  m

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    File file = new File("filename");

    URI uri = file.toURI();//  w  ww .j a  v a 2  s  .  c  om
    file = new File(uri.toURL().getFile());
    InputStream is = uri.toURL().openStream();
    is.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    File file = new File("filename");

    URI uri = file.toURI();//from   ww w  .j a v  a  2  s. com
    System.out.println(uri);
    file = new File(uri.toURL().getFile());
    InputStream is = uri.toURL().openStream();
    is.close();
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    File file = new File("c:\\class\\");
    URL url = file.toURI().toURL();
    URL[] urls = new URL[] { url };
    ClassLoader loader = new URLClassLoader(urls);
    Class cls = loader.loadClass("user.informatin.Class");
}