Example usage for java.nio CharBuffer allocate

Introduction

In this page you can find the example usage for java.nio CharBuffer allocate.

Prototype

public static CharBuffer allocate(int capacity)

Source Link

Document

Creates a char buffer based on a newly allocated char array.

Usage

From source file:MainClass.java

public static void main(String[] argv) throws Exception {
    CharBuffer cb = CharBuffer.allocate(100);

    cb.put("This is a test String");

    cb.flip();/* ww w . j a  v a2 s  . c o m*/

    System.out.println("hasArray() = " + cb.hasArray());

    char[] carray = cb.array();

    System.out.print("array=");

    for (int i = 0; i < carray.length; i++) {
        System.out.print(carray[i]);
    }

    System.out.println("");
    System.out.flush();
}

From source file:MainClass.java

public static void main(String[] argv) throws Exception {
    CharBuffer buffer = CharBuffer.allocate(8);
    buffer.position(3).limit(5);/*from w w w.  java  2s .c  o m*/
    CharBuffer sliceBuffer = buffer.slice();

    println(buffer);
    println(sliceBuffer);

    char[] myBuffer = new char[100];
    CharBuffer cb = CharBuffer.wrap(myBuffer);

    cb.position(12).limit(21);

    CharBuffer sliced = cb.slice();

    println(cb);
    println(sliced);
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    CharBuffer cb1 = CharBuffer.allocate(20);
    cb1.append("java2s.com");
    cb1.rewind();// w  w  w .  j a v a2s .c o m

    System.out.println(Arrays.toString(cb1.array()));

    CharBuffer cb2 = CharBuffer.allocate(50);
    cb2.read(cb1);

    System.out.println(cb2);

}

From source file:MainClass.java

public static void main(String[] argv) throws Exception {
    CharBuffer cb = CharBuffer.allocate(15);

    cb.put("Hello World");
    println(cb);//w w  w . ja v  a2 s  .  com

    cb.flip();
    println(cb);

    cb.flip();
    println(cb);
}

From source file:Main.java

public static void main(String[] args) {

    String s = "tutorial from java2s.com";

    CharBuffer cb = CharBuffer.allocate(100);

    Reader reader = new StringReader(s);

    try {/*from   w w  w .j  a  v  a  2 s  .c  o m*/
        reader.read(cb);

        cb.flip();

        // print the char buffer
        System.out.println(cb.toString());

        reader.close();

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

From source file:BufferEquality.java

public static void main(String[] args) {
    CharBuffer cb1 = CharBuffer.allocate(5), cb2 = CharBuffer.allocate(5);
    cb1.put('B').put('u').put('f').put('f').put('A');
    cb2.put('B').put('u').put('f').put('f').put('B');
    cb1.rewind();/*w  w w. ja va  2 s  .  c o m*/
    cb2.rewind();
    System.out.println(cb1.limit(4).equals(cb2.limit(4)));
    // Should be "true"
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Charset charset = Charset.forName("ISO-8859-1");
    CharsetDecoder decoder = charset.newDecoder();

    CharBuffer cbuf = CharBuffer.allocate(10);

    decoder.flush(cbuf);//from  www .  ja v a  2 s .  c o  m
}

From source file:Main.java

public static void main(String[] args) throws Exception {

    String s = "from java2s.com";

    StringReader sr = new StringReader(s);

    // create new buffered reader
    BufferedReader br = new BufferedReader(sr);

    // Destination source is created
    CharBuffer target = CharBuffer.allocate(s.length());

    // ready is invoked to test if character stream is ready
    if (br.ready()) {
        br.read(target);//from   ww w  .  j a  v  a  2 s .co m
    }
    System.out.print(target.array());

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Charset charset = Charset.forName("ISO-8859-1");
    CharsetDecoder decoder = charset.newDecoder();
    CharsetEncoder encoder = charset.newEncoder();
    ByteBuffer bbuf = ByteBuffer.allocateDirect(1024);

    CharBuffer cbuf = CharBuffer.allocate(1024);

    encoder.encode(cbuf, bbuf, false);//from  w  ww.j a va  2 s. c o m

    bbuf.flip();

    decoder.decode(bbuf, cbuf, false);

    cbuf.flip();

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Charset charset = Charset.forName("ISO-8859-1");
    CharsetDecoder decoder = charset.newDecoder();
    CharsetEncoder encoder = charset.newEncoder();

    ByteBuffer bbuf = encoder.encode(CharBuffer.wrap("a string"));

    CharBuffer cbuf = CharBuffer.allocate(10);

    decoder.decode(bbuf, cbuf, true);//from w w  w  .j  av  a 2 s .  c  om
    String s = cbuf.toString();
}