Example usage for java.io File canRead

Introduction

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

Prototype

public boolean canRead()

Source Link

Document

Tests whether the application can read the file denoted by this abstract pathname.

Usage

From source file:Main.java

public static void main(String[] args) {
    String filePath = "C:/Text.txt";
    File file = new File(filePath);

    if (file.canRead()) {
        System.out.println("readable");
    } else {//from   www  . j a v a  2s  .  co  m
        System.out.println("not readable");
    }
}

From source file:MainClass.java

public static void main(String[] a) {
    File file = new File("c:\\text.txt");
    file.setReadOnly();//w w  w .  j av a2 s .co  m
    System.out.println(file.canRead());
}

From source file:MainClass.java

public static void main(String[] a) {
    File myFile = new File("C:" + File.separator + "jdk1.5.0" + File.separator, "File.java");
    System.out.println(myFile.canRead());
}

From source file:Main.java

public static void main(String[] args) {

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

    // returns true if the file can be read
    boolean bool = f.canRead();

    System.out.print("File can be read: " + bool);

}

From source file:Attr.java

public static void main(String args[]) {
    File path = new File(args[0]); // grab command-line argument
    String exists = getYesNo(path.exists());
    String canRead = getYesNo(path.canRead());
    String canWrite = getYesNo(path.canWrite());
    String isFile = getYesNo(path.isFile());
    String isHid = getYesNo(path.isHidden());
    String isDir = getYesNo(path.isDirectory());
    String isAbs = getYesNo(path.isAbsolute());
    System.out.println("File attributes for '" + args[0] + "'");
    System.out.println("Exists    : " + exists);
    if (path.exists()) {
        System.out.println("Readable   : " + canRead);
        System.out.println("Writable   : " + canWrite);
        System.out.println("Is directory : " + isDir);
        System.out.println("Is file    : " + isFile);
        System.out.println("Is hidden   : " + isHid);
        System.out.println("Absolute path : " + isAbs);
    }/*from   w w w.  j  a  v  a2s  .  c  o  m*/
}

From source file:Main.java

public static void main(String[] args) {
    File file = new File(args[0]);
    if (!file.exists()) {
        System.out.println(args[0] + " does not exist.");
        return;/*  ww w . j  a  v  a 2s  . c  om*/
    }
    if (file.isFile() && file.canRead()) {
        System.out.println(file.getName() + " can be read from.");
    }
    if (file.isDirectory()) {
        System.out.println(file.getPath() + " is a directory containing...");
        String[] files = file.list();
        for (int i = 0; i < files.length; i++) {
            System.out.println(files[i]);
        }
    }
}

From source file:Main.java

public static void main(String[] args) {
    File file = new File(args[0]);
    if (!file.exists()) {
        System.out.println(args[0] + " does not exist.");
        return;/* w w w.j a  va2  s  .  c o m*/
    }
    if (!(file.isFile() && file.canRead())) {
        System.out.println(file.getName() + " cannot be read from.");
        return;
    }
    try {
        FileInputStream fis = new FileInputStream(file);
        char current;
        while (fis.available() > 0) {
            current = (char) fis.read();
            System.out.print(current);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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   w w  w  .ja v  a 2s .  com*/
    }
    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:hisqisnoten.HisqisNoten.java

public static void main(String[] args) {
    options = new Options();
    options.addOption("h", "help", false, "this help");
    options.addOption("u", "user", true, "username for hisqis");
    options.addOption("p", "pass", true, "password for hisqis");
    options.addOption("c", "console", false, "console mode instead of gui mode");

    CommandLineParser parser = new PosixParser();

    try {/*from ww  w  .j a  va2 s.c o m*/
        CommandLine cmdline = parser.parse(options, args);

        if (cmdline.hasOption("help")) {
            printHelp();
            System.exit(0);
        }

        if (cmdline.getArgList().size() != 0) {
            System.err.println("Please use the new commandline options.");
            System.out.println();

            printHelp();
            System.exit(1);
        }

        HisqisSettings settings = null;
        HisqisSettings.genConfigPath();

        for (File configpath : HisqisSettings.configpath) {
            if (configpath.exists() && configpath.canRead()) {
                settings = HisqisSettingsReader.loadDocument(configpath);

                if (settings != null) {
                    break;
                }
            }
        }

        if (settings == null) {
            settings = new HisqisSettings();
        }

        String user = cmdline.getOptionValue("user", null);
        String pass = cmdline.getOptionValue("pass", null);

        if (user != null) {
            settings.username = user;
        }
        if (pass != null) {
            settings.password = pass;
        }

        if (cmdline.hasOption("console")) {
            new HisqisConsole(settings);
        } else {
            new HisqisGUI(settings);
        }
    } catch (ParseException e) {
        printHelp();
    }
}

From source file:Main.java

public static void main(String[] args) {
    File f = new File("C:/test.txt");

    // set read permission
    boolean bool = f.setReadable(true);

    System.out.println("setReadable() succeeded?: " + bool);

    // checks whether the file is readable
    bool = f.canRead();

    System.out.print("Is file readable?: " + bool);

}