Java中使用BufferedReader类来读取大文本文件 importjava.io.BufferedReader;importjava.io.File;importjava.io.FileReader;importjava.io.IOException;publicclassReadLargeTextFile {publicstaticvoidmain(String[] args) { File file=newFile("large_file.txt");try(BufferedReader br =newBufferedReader(newFileReader(...
public BufferedReader(Reader in)创建一个缓冲字符输入流对象,并选择指定字符输入流对象in作为其实际数据源。 public BufferedReader(Reader in, int size)创建一个缓冲字符输入流对象,并选择指定字符输入流对象in作为其实际数据源,同时指定缓冲区大小size。 成员方法 public String readLine() throws IOException从缓存中...
importjava.io.*;publicclassJava_1{publicstaticvoidmain(String[]args)throwsIOException{InputStreamRead...
public class BufferedReader extends Reader 1. 2. java.io.BufferedReader类继承自java.io.Reader类。 BufferedReader从字符输入流中读取文本,缓冲各个字符,从而实现字符、数组和行的高效读取。可以指定缓冲区的大小,或者使用默认的大小,大多数情况下,默认值就足够大了。 通常,Reader 所作的每个读取请求都会导致对底...
Namespace: Java.IO Assembly: Mono.Android.dll Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.C# 复制 [Android.Runtime.Register("java/io/BufferedReader", DoNotGenerateAcw=true)] public class Buffered...
classLineNumberReader A buffered character-input stream that keeps track of line numbers. Uses ofBufferedReaderinjava.nio.file Methods injava.nio.filethat returnBufferedReader Modifier and TypeMethod and Description staticBufferedReaderFiles.newBufferedReader(Pathpath,Charsetcs) ...
in.close(); } } 例:2.3.2 import java.io.*; public class TestMark_to_win { public static void main(String args[]) throws Exception { // /// from StringReader to file: String s = "你们" + "\n" + "他们我们" + "\n"; ...
importjava.io.BufferedReader;importjava.io.FileReader;publicclassclass1{publicstaticvoidmain(String[] args)throwsException {//创建字符缓冲输入流对象BufferedReaderbr=newBufferedReader(newFileReader("D:/1.txt"));//读数据//一次读取一个字符数组char[] chs =newchar[1024] ;intlen=0;while((len=br.re...
importjava.io.BufferedReader;importjava.io.FileNotFoundException;importjava.io.FileReader;importjava.io.IOException;/** * Read contents of a File line by line using BufferedReader * www.tutorialkart.com */publicclassExample{publicstaticvoidmain(Stringargs[]){Stringfilename="samplefile.txt";Buffered...
readline是读取一行的方法, 也就是说你输入的数字会被读取, 然后放在 text里面 注意: readline这个方法是阻塞式的, 意思是你不输入我就在那等, 什么时候你输入了, 我的程序才会往下执行 然后最后一个打印 请输入文字 后面加上 读取的东西...多看看java基础吧 ...