Java.io.LineNumberReader Class
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Introduction
The Java.io.LineNumberReader class is a buffered character-input stream that keeps track of line numbers.A line is considered to be terminated by any one of a line feed ('\n'), a carriage return ('\r'), or a carriage return followed immediately by a linefeed.
Class declaration
Following is the declaration for Java.io.LineNumberReader class:
public class LineNumberReader extends BufferedReader
Field
Following are the fields for Java.io.LineNumberReader class:
protected Object lock -- This is the object used to synchronize operations on this stream.
Class constructors
| S.N. | Constructor & Description |
|---|---|
| 1 | LineNumberReader(Reader in) This creates a new line-numbering reader, using the default input-buffer size. |
| 2 | LineNumberReader(Reader in, int sz) This creates a new line-numbering reader, reading characters into a buffer of the given size. |
Class methods
| S.N. | Method & Description |
|---|---|
| 1 | int getLineNumber() This method gets the current line number. |
| 2 | void mark(int readAheadLimit) This method mark the present position in the stream. |
| 3 | int read() This method read a single character. |
| 4 | int read(char[] cbuf, int off, int len) This method read characters into a portion of an array. |
| 5 | String readLine() This method read a line of text. |
| 6 | void reset() This method reset the stream to the most recent mark. |
| 7 | void setLineNumber(int lineNumber) This method set the current line number. |
| 8 | long skip(long n) This method skip characters. |
Methods inherited
This class inherits methods from the following classes:
Java.io.BufferedReader
Java.io.Reader
Java.io.Object