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This class is a character input stream
that keeps track of the number of lines of text that have been read
from it. It supports the usual Reader methods and
also the readLine( ) method introduced by its
superclass. In addition to these methods, you can call
getLineNumber( ) to
query the number of lines set so far. You can also call
setLineNumber(
) to set the line number for the current line. Subsequent
lines are numbered sequentially from this specified starting point.
This class is a character-stream analog to
LineNumberInputStream, which has been deprecated
as of Java 1.1.
Figure 9-32. java.io.LineNumberReader
public class LineNumberReader extends BufferedReader {
// Public Constructors
public LineNumberReader (Reader in );
public LineNumberReader (Reader in , int sz );
// Public Instance Methods
public int getLineNumber ( );
public void setLineNumber (int lineNumber );
// Public Methods Overriding BufferedReader
public void mark (int readAheadLimit ) throws IOException;
public int read ( ) throws IOException;
public int read (char[ ] cbuf , int off , int len ) throws IOException;
public String readLine ( ) throws IOException;
public void reset ( ) throws IOException;
public long skip (long n ) throws IOException;
}