Java 的四个输入法:BufferedReader、InputStreamReader、Scanner 和 System.in。 返回目录 1 System.in System.in 返回的是 InputStream 指向命令行输入的字节流,InputStream 的 read 方法以字节流的方式来读取命令行的输入的数据。 查看源码(InputStream.java)我们常用的有: 1intSystem.read()//以字节的方式读取...
java.io.Reader java.io.BufferedReader java.io.LineNumberReader BufferedReader直接子类 跟踪行号的缓冲字符输入流。此类定义了方法setLineNumber(int)和getLineNumber(),它们可分别用于设置和获取当前行号。 public int getLineNumber()获得当前行号。 public void setLineNumber(int lineNumber)设置当前行号。
问在Java中使用BufferedReader或扫描仪处理多个输入EN当我试图使用这个方法读取所有的行时，program...It...
import java.io.*; public class TestIO{ public static void main(String[] args) throws IOException{ //1.以行为单位从一个文件读取数据 BufferedReader in = new BufferedReader( new FileReader("F://nepalon//TestIO.java")); String s, s2 = new String(); while((s = in.readLine()) != nu...
System.out.println("BufferedReader is empty. Exiting the program.");System.exit(0); 1. 2. 如果BufferedReader 不为空,可以继续读取数据并进行相关的处理: Stringline=br.readLine();// 进行数据处理 1. 2. 以上代码示例中,readLine()方法用于读取 BufferedReader 的下一行数据,并将其存储在一个字符串变...
java中buffered bufferedreaderbufferedreader 是缓冲字符输入流。它继承于reader。 bufferedreader 的作用是为其他字符输入流添加一些缓冲功能。 创建bufferreader时,我们会通过它的构造函数指定某个reader为参数。bufferreader会将该reader中的数据分批读取,每次读取一部分到缓冲中;操作完缓冲中的这部分数据之后,再从reader中...
Methods inherited from class java.lang.Object clone,equals,finalize,getClass,hashCode,notify,notifyAll,toString,wait,wait,wait Constructor Detail BufferedReader public BufferedReader(Readerin, int sz) Creates a buffering character-input stream that uses an input buffer of the specified size. ...
/r, /n, and /r/n are assumed to be line breaks and are not included in the returned string. This method is often used when reading user input from System.in, since most platforms only send the user's input to the running program after the user has typed a full line (that is, ...
System.err.println("Oops! Please check for the presence of file in the path specified."); e.printStackTrace(); } catch (IOException e) { System.err.println("Oops! Unable to read the file."); e.printStackTrace(); } } } When the above program is run, output to the console is as...
Added in 1.1. Java documentation forjava.io.BufferedReader. Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution License. ...