📅  最后修改于: 2020-11-15 02:45:35             🧑  作者: Mango
Java.io.LineNumberReader类是一个缓冲的字符输入流,用于跟踪行号。行被视为由换行符(’\ n’),回车符(’\ r’ ),或者回车后立即换行。
以下是Java.io.LineNumberReader类的声明-
public class LineNumberReader
extends BufferedReader
以下是Java.io.LineNumberReader类的字段-
protected Object lock-这是用于同步此流上的操作的对象。
Sr.No. | 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. |
Sr.No. | 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. |
此类从以下类继承方法-