Example usage for java.io Reader read

Introduction

In this page you can find the example usage for java.io Reader read.

Prototype

public int read() throws IOException

Source Link

Document

Reads a single character.

Usage

From source file:Unbuffered.java

public static void main(String args[]) {
    Reader reader;
    int ch;//from w w  w  .ja va 2  s . com
    System.out.println("Start! " + new Date());
    try {
        reader = new FileReader(args[0]);
        while ((ch = reader.read()) != -1) {
            // read entire file
        }
    } catch (IOException io) {
        System.err.println(io);
        System.exit(-1);
    }
    System.out.println("Stop! " + new Date());
}

From source file:Main.java

public static void main(String[] args) {

    String s = "tutorial from java2s.com";

    Reader reader = new StringReader(s);

    try {//from  ww w  .  j a v a2  s.  com
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) reader.read();
            System.out.println(c);
        }
        reader.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {

    String s = "tutorial from java2s.com";

    Reader reader = new StringReader(s);

    try {/*from   ww w .  j  av  a2 s  .  c o  m*/
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) reader.read();
            System.out.println(c);
        }
        reader.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {
    String s = "tutorial from java2s.com";

    Reader reader = new StringReader(s);

    try {//from   w  w  w .j ava2 s.  com
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) reader.read();

            // skip a char every time
            reader.skip(1);

            System.out.println(c);
        }
        reader.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void main(String[] args) {

    String s = "tutorial from java2s.com";

    // create a new StringReader
    Reader reader = new StringReader(s);

    try {/*from   w ww  . j ava 2  s.c o m*/
        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) reader.read();
            System.out.println(c);
        }
        System.out.println(reader.markSupported());
        reader.close();

    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:com.discursive.jccook.slide.GetExample.java

public static void main(String[] args) throws HttpException, IOException {
    HttpClient client = new HttpClient();

    String url = "http://www.discursive.com/jccook/dav/test.html";
    Credentials credentials = new UsernamePasswordCredentials("davuser", "davpass");

    // List resources in top directory
    WebdavResource resource = new WebdavResource(url, credentials);

    System.out.println("The three ways to Read resources.");

    // Read to a temporary file
    File tempFile = new File(resource.getName());
    resource.getMethod(tempFile);/*from   w  ww . j  a v a2  s .  co m*/
    System.out.println("1. " + resource.getName() + " saved in file: " + tempFile.toString());

    // Read as a String
    String resourceData = resource.getMethodDataAsString();
    System.out.println("2. Contents of " + resource.getName() + " as String.");
    System.out.println(resourceData);

    // Read with a stream
    InputStream resourceStream = resource.getMethodData();
    Reader reader = new InputStreamReader(resourceStream);
    StringWriter writer = new StringWriter();
    while (reader.ready()) {
        writer.write(reader.read());
    }
    System.out.println("3. Contents of " + resource.getName() + " from InputStream.");
    System.out.println(writer.toString());

    resource.close();

}

From source file:Main.java

public static void main(String[] args) {

    String s = "tutorial from java2s.com";

    Reader reader = new StringReader(s);

    try {/*from   w  w w. j  a  v a 2 s. c o  m*/
        // check if reader is ready
        System.out.println(reader.ready());

        // read the first five chars
        for (int i = 0; i < 5; i++) {
            char c = (char) reader.read();
            System.out.println(c);
        }
        reader.close();
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static byte[] charArrayToByteArray(char[] buffer) {
    try {//  w  ww  .j av  a  2 s  .c  o m
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        OutputStreamWriter out = new OutputStreamWriter(baos, ENCODING);
        Reader reader = new CharArrayReader(buffer);
        for (int ch; (ch = reader.read()) != -1;) {
            out.write(ch);
        }
        return baos.toByteArray();
    } catch (Exception ex) {
        return null;
    }
}

From source file:Main.java

public static String readAll(Reader rd) throws IOException {
    StringBuilder sb = new StringBuilder();
    int cp;//w ww . j  a v  a  2  s. c  om
    while ((cp = rd.read()) != -1) {
        sb.append((char) cp);
    }
    return sb.toString();
}

From source file:Main.java

/**
 * Slurps a Reader into a String and strips the character 0.
 * @param in//from w w w. j  ava 2s  .c  o m
 * @throws IOException
 */
public static String readerToPrintableCharString(final Reader in) throws IOException {
    StringBuffer out = new StringBuffer();
    int n;
    while ((n = in.read()) != -1) {
        if (n != 0) {
            char c = (char) n;
            out.append(c);
        }
    }
    return out.toString();
}