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 {

    File file = new File("filename");

    long modifiedTime = file.lastModified();
    // 0L is returned if the file does not exist

    long newModifiedTime = System.currentTimeMillis();
    boolean success = file.setLastModified(newModifiedTime);
    if (!success) {
        // operation failed.
    }/*from ww  w.  ja va  2 s  .c  om*/
}

From source file:Main.java

public static void main(String[] args) {

    File f = new File("c:");

    // true if the file path is a file, else false
    boolean bool = f.isFile();

    // get the path
    String path = f.getPath();//ww w  . ja v a2  s .  c  o m

    System.out.println(path + " is file? " + bool);

    // create new file
    f = new File("c:/test.txt");

    // true if the file path is a file, else false
    bool = f.isFile();

    // get the path
    path = f.getPath();

    System.out.print(path + " is file? " + bool);

}

From source file:Main.java

public static void main(String[] args) {

    // create new files
    File f = new File("test.txt");

    String path = f.getAbsolutePath();

    System.out.print("Absolute Pathname " + path);

}

From source file:Main.java

public static void main(String[] args) {

    // create new file
    File f = new File("test.txt");

    // tries to delete a non-existing file
    boolean bool = f.delete();

    System.out.println("File deleted: " + bool);

}

From source file:Main.java

public static void main(String[] args) {
    // create new file
    File f = new File("c:/test");

    // returns pathnames for files and directory
    File[] paths = f.listFiles();

    // for each pathname in pathname array
    for (File path : paths) {
        System.out.println(path);
    }//  w  w w.  j  a  v a  2s. c o  m

}

From source file:Main.java

public static void main(String[] args) {

    // create new files
    File f = new File("test.txt");
    File f1 = new File("test1.txt");

    // returns boolean
    boolean bool = f.equals(f1);

    System.out.println("Equal: " + bool);

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File file = new File("Writable.txt");
    file.createNewFile();/*  ww w  .  j av  a  2  s  .  c o m*/
    file.setReadOnly();

    if (file.canWrite()) {
        System.out.println("File is writable!");
    } else {
        System.out.println("File is in read only mode!");
    }
    file.setWritable(true);
    if (file.canWrite()) {
        System.out.println("File is writable!");
    } else {
        System.out.println("File is in read only mode!");
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    File file = new File("D:\\test\\test.java");
    String parentPath = file.getParent();
    System.out.println(parentPath);
    File parentDir = file.getParentFile();
    System.out.println(parentDir);

    parentPath = parentDir.getParent();/*from www.j av a2 s. c  o  m*/
    System.out.println(parentPath);
    parentDir = parentDir.getParentFile();
    System.out.println(parentDir);

    parentPath = parentDir.getParent();
    System.out.println(parentPath);
    parentDir = parentDir.getParentFile();
    System.out.println(parentDir);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    File f = new File("c:\\temp\\test.bmp");
    Desktop dt = Desktop.getDesktop();
    dt.open(f);//from  www .ja v a  2  s.co  m
    System.out.println("Done.");
}

From source file:Main.java

public static void main(String[] args) {

    // create new file
    File f = new File("c:/test.txt");

    // true if the file path is a hidden file
    boolean bool = f.isHidden();

    // get the path
    String path = f.getPath();/*from   w  w w .  j  a  v a  2s  .  c o  m*/

    System.out.print(path + " is file hidden? " + bool);

}