因此,建议用 BufferedReader 包装所有其 read() 操作可能开销很高的 Reader(如 FileReader 和 InputStreamReader)。例如: BufferedReader in =newBufferedReader(newFileReader("foo.in"))//将缓冲指定文件的输入。 返回目录 3.InputStreamReader InputStreamReader 是字节流通向字符流的桥梁:它使用指定的 charset 读取...
importjava.io.*;publicclassBufferedReaderDemo01{publicstaticvoidmain(String args[]){BufferedReader buf=null;//声明对象buf =newBufferedReader(newInputStreamReader(System.in)) ;//将字节流变为字符流String str =null;//接收输入内容System.out.print("请输入内容:") ;try{ str= buf.readLine() ;//...
参考链接: Java InputStreamReader类 主要通过BufferedReader的readLine()方法按行读取字符串,如下代码所以 读取完毕后记得关闭文件流,最好统一放在finally中关闭 public void readLine(String path) { InputStreamReader isr = null; BufferedReader br = null; try { isr = new InputStreamReader(new FileInputStrea...
BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); 3、规范用法 总结以上内容,得出比较好的规范用法: 1) File file = new File ("hello.txt"); FileInputStream in=new FileInputStream (file); 2) File file = new File ("hello.txt"); ...
public static void main(String[] args) { BufferedReader reader=null; try { InputStreamReader read = new InputStreamReader(new FileInputStream("D:\\bf\\Desktop\\test.txt"), "UTF-8"); reader = new BufferedReader(read); String line=null; while((line =reader.readLine()) != null){ Sys...
InputStreamReader : 是字节流与字符流之间的桥梁,能将字节流输出为字符流。而且能为字节流指定字符集,可输出一个个的字符。 BufferedReader : 提供通用的缓冲方式文本读取,readLine读取一个文本行, 从字符输入流中读取文本,缓冲各个字符,从而提供字符、数组和行的高效读取。
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("ming.txt"))); String data = null; while((data = br.readLine())!=null) { System.out.println(data); } 示例如下: public static String getHtml(String url) throws IOException { ...
We have a text in Cyrillic. Main.java import java.io.BufferedReader; import java.io.FileInputStream; import java.io.InputStreamReader; import java.nio.charset.StandardCharsets; void main() throws Exception { String fileName = "russian-text.txt"; ...
InputStream is = new FileInputStream(path); InputStreamReader isr = new InputStreamReader(is, "utf-8"); BufferedReader br = new BufferedReader(isr); 如上代码,在使用完以后需要每个都关闭吗?还是只要关闭is就行了javainputstream 有用关注7收藏2 回复 阅读31k 3...
x;Stringdata;max=0;ir=newInputStreamReader(System.in);in=newBufferedReader(ir);System.out.printl...