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/**
* See the general contract of the <code>readInt</code>
* method of <code>DataInput</code>.
* <p>
* Bytes
* for this operation are read from the contained
* input stream.
*
* @return the next four bytes of this input stream, interpreted as an
* <code>int</code>.
* @exception EOFException if this input stream reaches the end before
* reading four bytes.
* @exception IOException the stream has been closed and the contained
* input stream does not support reading after close, or
* another I/O error occurs.
* @see java.io.FilterInputStream#in
*/
public final int readInt() throws IOException {