in - A Reader object providing the underlying stream.
Must not be null.
public final int read()
Returns the next character in the filtered stream. If the read-ahead
has been completed, the next character in the buffer is returned.
Otherwise, the stream is read to the end and buffered (with the buffer
growing as necessary), then the appropriate position in the buffer is
set to read from.
read in class java.io.FilterReader
the next character in the resulting stream, or -1
if the end of the resulting stream has been reached
java.io.IOException - if the underlying stream throws an IOException
public final void setLines(long lines)
Sets the number of lines to be returned in the filtered stream.
lines - the number of lines to be returned in the filtered stream
public final java.io.Reader chain(java.io.Reader rdr)
Creates a new TailFilter using the passed in
Reader for instantiation.