Example usage for java.io File delete

Introduction

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

Prototype

public boolean delete()

Source Link

Document

Deletes the file or directory denoted by this abstract pathname.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    File file = new File("C:/Demo.txt");
    System.out.println(file.delete());
}

From source file:Main.java

public static void main(String[] args) {
    File file = new File("yourFile.txt");
    System.out.println(file.delete());

}

From source file:FileIOApp.java

public static void main(String args[]) throws IOException {
    FileOutputStream outStream = new FileOutputStream("test.txt");
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));//from  w w  w  .java  2  s. c  o m
    outStream.close();
    FileInputStream inStream = new FileInputStream("test.txt");
    int inBytes = inStream.available();
    System.out.println("inStream has " + inBytes + " available bytes");
    byte inBuf[] = new byte[inBytes];
    int bytesRead = inStream.read(inBuf, 0, inBytes);
    System.out.println(bytesRead + " bytes were read");
    System.out.println("They are: " + new String(inBuf));
    inStream.close();
    File f = new File("test.txt");
    f.delete();
}

From source file:MainClass.java

public static void main(String[] a) {
    File file = new File("c:\\test\\test.txt");
    boolean success = file.delete();
    System.out.println(success);//from  ww w .  j a  va 2s. c  om
}

From source file:FileAttributesDemo.java

public static void main(String[] args) throws IOException {
    // Create a new file, by default canWrite=true, readonly=false
    File file = new File("test.txt");
    if (file.exists()) {
        file.delete();
    }//from w w  w  . java  2 s. com
    file.createNewFile();
    System.out.println("Before. canWrite?" + file.canWrite());

    // set to read-only, atau canWrite = false */
    file.setWritable(false);
    System.out.println("After. canWrite?" + file.canWrite());
}

From source file:edu.nju.cs.inform.jgit.CreateNewRepository.java

public static void main(String[] args) throws IOException, IllegalStateException, GitAPIException {
    // prepare a new folder
    File localPath = File.createTempFile("TestGitRepository", "");
    localPath.delete();

    // create the directory
    try (Git git = Git.init().setDirectory(localPath).call()) {
        System.out.println("Having repository: " + git.getRepository().getDirectory());
    }/*from  w w w  .j a v  a  2s  .c  om*/

    FileUtils.deleteDirectory(localPath);
}

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:Delete.java

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

    // Construct a File object for the backup created by editing
    // this source file. The file probably already exists.
    // My editor creates backups by putting ~ at the end of the name.
    File bkup = new File("Delete.java~");
    // Quick, now, delete it immediately:
    bkup.delete();
}

From source file:com.dopsun.msg4j.tools.CodeGen.java

/**
 * @param args/*from  ww  w  . jav a 2 s.  c om*/
 * @throws IOException
 * @throws MalformedURLException
 * @throws ParseException
 */
public static void main(String[] args) throws MalformedURLException, IOException, ParseException {
    Options options = new Options();
    options.addOption("o", "out", true, "Output file");
    options.addOption("s", "src", true, "Source file");
    options.addOption("l", "lang", true, "Language");

    CommandLineParser cmdParser = new DefaultParser();
    CommandLine cmd = cmdParser.parse(options, args);

    String lang = cmd.getOptionValue("lang", "Java");
    String srcFile = cmd.getOptionValue("src");
    String outFile = cmd.getOptionValue("out");

    YamlModelSource modelSource = YamlModelSource.load(new File(srcFile).toURI().toURL());
    YamlModelParser parser = YamlModelParser.create();
    ModelInfo modelInfo = parser.parse(modelSource);

    String codeText = null;
    if (lang.equals("Java")) {
        codeText = Generator.JAVA.generate(modelInfo);
    } else {
        throw new UnsupportedOperationException("Unrecognized lang: " + lang);
    }

    if (outFile != null) {
        File file = new File(outFile);
        if (file.exists()) {
            file.delete();
        }
        file.createNewFile();

        Files.append(codeText, new File(outFile), Charsets.UTF_8);
    } else {
        System.out.println(codeText);
    }
}

From source file:edu.cuhk.hccl.TripRealRatingsApp.java

public static void main(String[] args) throws IOException {
    File dir = new File(args[0]);
    File outFile = new File(args[1]);
    outFile.delete();

    StringBuilder buffer = new StringBuilder();

    for (File file : dir.listFiles()) {
        List<String> lines = FileUtils.readLines(file, "UTF-8");
        String hotelID = file.getName().split("_")[1];
        String author = null;//  w  w w . j ava  2s.com
        boolean noContent = false;
        for (String line : lines) {
            if (line.startsWith("<Author>")) {
                try {
                    author = line.split(">")[1].trim();
                } catch (ArrayIndexOutOfBoundsException e) {
                    System.out.println("[ERROR] An error occured on this line:");
                    System.out.println(line);
                    continue;
                }
            } else if (line.startsWith("<Content>")) { // ignore records if they have no content
                String content = line.split(">")[1].trim();
                if (content == null || content.equals(""))
                    noContent = true;
            } else if (line.startsWith("<Rating>")) {
                String[] rates = line.split(">")[1].trim().split("\t");

                if (noContent || rates.length != 8)
                    continue;

                // Change missing rating from -1 to 0
                for (int i = 0; i < rates.length; i++) {
                    if (rates[i].equals("-1"))
                        rates[i] = "0";
                }

                buffer.append(author + "\t");
                buffer.append(hotelID + "\t");

                // overall
                buffer.append(rates[0] + "\t");
                // location
                buffer.append(rates[3] + "\t");
                // room
                buffer.append(rates[2] + "\t");
                // service
                buffer.append(rates[6] + "\t");
                // value
                buffer.append(rates[1] + "\t");
                // cleanliness
                buffer.append(rates[4] + "\t");

                buffer.append("\n");
            }
        }

        // Write once for each file
        FileUtils.writeStringToFile(outFile, buffer.toString(), true);

        // Clear buffer
        buffer.setLength(0);
        System.out.printf("[INFO] Finished processing %s\n", file.getName());
    }
    System.out.println("[INFO] All processinig are finished!");
}