package java.io;

/**
 * This class implements an output stream in which the data is written into a byte array. The buffer
 * automatically grows as data is written to it. The data can be retrieved using
 * <code>toByteArray()</code> and <code>toString()</code>.
 * <p>
 * Closing a <code>ByteArrayOutputStream</code> has no effect. The methods in this class can be called
 * after the stream has been closed without generating an <code>IOException</code>.
 */
public class ByteArrayOutputStream extends OutputStream {

    /**
     * Creates a new byte array output stream. The buffer capacity is initially 32 bytes, though its
     * size increases if necessary.
     */
    public ByteArrayOutputStream() {
        throw new RuntimeException();
    }

    /**
     * Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.
     *
     * @param size
     *        the initial size.
     * @exception IllegalArgumentException
     *            if size is negative.
     */
    public ByteArrayOutputStream(int size) {
        throw new RuntimeException();
    }

    /**
     * Closing a <code>ByteArrayOutputStream</code> has no effect. The methods in this class can be called
     * after the stream has been closed without generating an <code>IOException</code>.
     */
    @Override
    public void close() throws IOException {
        throw new RuntimeException();
    }

    /**
     * Resets the <code>count</code> field of this byte array output stream to zero, so that all
     * currently accumulated output in the output stream is discarded. The output stream can be used
     * again, reusing the already allocated buffer space.
     *
     * @see java.io.ByteArrayInputStream#count
     */
    public void reset() {
        throw new RuntimeException();
    }

    /**
     * Returns the current size of the buffer.
     *
     * @return the value of the <code>count</code> field, which is the number of valid bytes in this
     *         output stream.
     * @see java.io.ByteArrayOutputStream#count
     */
    public int size() {
        throw new RuntimeException();
    }

    /**
     * Creates a newly allocated byte array. Its size is the current size of this output stream and the
     * valid contents of the buffer have been copied into it.
     *
     * @return the current contents of this output stream, as a byte array.
     * @see java.io.ByteArrayOutputStream#size()
     */
    public byte[] toByteArray() {
        throw new RuntimeException();
    }

    /**
     * Converts the buffer's contents into a string decoding bytes using the platform's default
     * character set. The length of the new <code>String</code> is a function of the character set, and
     * hence may not be equal to the size of the buffer.
     *
     * @return String decoded from the buffer's contents.
     */
    @Override
    public String toString() {
        throw new RuntimeException();
    }

    /**
     * Writes <code>len</code> bytes from the specified byte array starting at offset <code>off</code>
     * to this byte array output stream.
     *
     * @param b
     *        the data.
     * @param off
     *        the start offset in the data.
     * @param len
     *        the number of bytes to write.
     */
    @Override
    public void write(byte[] b, int off, int len) {
        throw new RuntimeException();
    }

    /**
     * Writes the specified byte to this byte array output stream.
     *
     * @param b
     *        the byte to be written.
     */
    @Override
    public void write(int b) {
        throw new RuntimeException();
    }

    /**
     * Writes the complete contents of this byte array output stream to the specified output stream
     * argument, as if by calling the output stream's write method using
     * <code>out.write(buf, 0, count)</code>.
     *
     * @param out
     *        the output stream to which to write the data.
     * @exception IOException
     *            if an I/O error occurs.
     */
    public void writeTo(OutputStream out) throws IOException {
        throw new RuntimeException();
    }
}