Example usage for java.io ByteArrayInputStream ByteArrayInputStream

Introduction

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

Prototype

public ByteArrayInputStream(byte buf[]) 

Source Link

Document

Creates a ByteArrayInputStream so that it uses buf as its buffer array.

Usage

From source file:Main.java

public static void main(String[] args) {

    byte[] arrByte = new byte[1024];

    byte[] byteArray = new byte[] { 'j', 'a', 'v', 'a', '2', 's', '.', 'c', 'o', 'm' };

    // create object of PushbackInputStream class for specified stream
    InputStream is = new ByteArrayInputStream(byteArray);
    PushbackInputStream pis = new PushbackInputStream(is);

    try {//from   www  . ja va 2  s  .c  o m

        // read a char into our array
        pis.read(arrByte, 0, 3);

        // print arrByte
        for (int i = 0; i < 3; i++) {
            System.out.println((char) arrByte[i]);
        }

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

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From source file:Main.java

public static void main(String[] args) {
    byte[] arrByte = new byte[1024];
    byte[] byteArray = new byte[] { 'j', 'a', 'v', 'a', '2', 's', '.', 'c', 'o', 'm' };

    InputStream is = new ByteArrayInputStream(byteArray);
    PushbackInputStream pis = new PushbackInputStream(is, 10);

    try {/*  w  w  w  . j  a v  a  2s . co  m*/
        // read from the buffer one character at a time
        for (int i = 0; i < byteArray.length; i++) {
            // read a char into our array
            arrByte[i] = (byte) pis.read();
            System.out.println((char) arrByte[i]);
        }
        // unread a char
        pis.unread('F');

        // read again from the buffer 
        arrByte[1] = (byte) pis.read();
        System.out.println((char) arrByte[1]);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

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From source file:Main.java

public static void main(String[] args) throws IOException {
    byte[] picture = new byte[2048]; // your image data

    InputStream in = new ByteArrayInputStream(picture);

    BufferedImage buf = ImageIO.read(in);
    ColorModel model = buf.getColorModel();
    int height = buf.getHeight();
    int width = buf.getWidth();
}

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From source file:BufferedInputStreamDemo.java

public static void main(String args[]) throws IOException {
    String s = "This is a © copyright symbol " + "but this is &copy not.\n";
    byte buf[] = s.getBytes();
    ByteArrayInputStream in = new ByteArrayInputStream(buf);
    BufferedInputStream f = new BufferedInputStream(in);
    int c;/*from   w  ww.j a va  2  s .  c  o  m*/
    boolean marked = false;

    while ((c = f.read()) != -1) {
        switch (c) {
        case '&':
            if (!marked) {
                f.mark(32);
                marked = true;
            } else {
                marked = false;
            }
            break;
        case ';':
            if (marked) {
                marked = false;
                System.out.print("(c)");
            } else
                System.out.print((char) c);
            break;
        case ' ':
            if (marked) {
                marked = false;
                f.reset();
                System.out.print("&");
            } else
                System.out.print((char) c);
            break;
        default:
            if (!marked)
                System.out.print((char) c);
            break;
        }
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    byte[] data = new byte[SIZE];
    for (int i = 0; i < SIZE; ++i) {
        data[i] = (byte) (64 + (i % 32));
    }//from  w  ww  . j a v  a 2  s .  c  o  m
    ByteArrayInputStream stream = new ByteArrayInputStream(data);
    // DriverManager.registerDriver(new OracleDriver());
    Connection c = DriverManager.getConnection("jdbc:oracle:thin:@some_database", "user", "password");

    String sql = "DECLARE\n" + //
            "  l_line    CLOB;\n" + //
            "BEGIN\n" + //
            "  l_line := ?;\n" + //
            "  UPDATE table SET log = log || l_line || CHR(10) WHERE id = ?;\n" + //
            "END;\n"; //

    PreparedStatement stmt = c.prepareStatement(sql);
    stmt.setAsciiStream(1, stream, SIZE);
    stmt.setInt(2, 1);
    stmt.execute();
    stmt.close();
    c.commit();
    c.close();
}

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From source file:Main.java

public static void main(String args[]) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));/*from  ww  w  .  ja v  a  2 s .com*/
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());
    ByteArrayInputStream inStream = new ByteArrayInputStream(outStream.toByteArray());
    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));
}

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From source file:Main.java

public static void main(String args[]) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));//from   w  w  w .j ava  2 s . c om
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());

    ByteArrayInputStream inStream;
    inStream = new ByteArrayInputStream(outStream.toByteArray());
    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));
}

---

From source file:ByteArrayIOApp.java

public static void main(String args[]) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));//from w  ww  .j  a v  a  2s.  c om
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());
    ByteArrayInputStream inStream;
    inStream = new ByteArrayInputStream(outStream.toByteArray());
    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));
}

---

From source file:SaveVector1.java

public static void main(String args[]) throws Exception {
    Vector v = new Vector(Arrays.asList(args));
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(v);/*www.j a  va2s .  c o  m*/
    oos.close();
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    Vector v2 = (Vector) ois.readObject();
    Enumeration e = v.elements();
    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }
}

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From source file:MainClass.java

public static void main(String args[]) throws Exception {
    Vector v = new Vector(Arrays.asList("a", "b", "c"));
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(v);//w  ww  . j av  a  2  s  .co m
    oos.close();

    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    Vector v2 = (Vector) ois.readObject();
    Enumeration e = v.elements();
    while (e.hasMoreElements()) {
        System.out.println(e.nextElement());
    }
}

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