importjava.io.*;publicclassReadFileAsStreamExample{publicstaticvoidmain(String[]args){Filefile=newFile("文件路径");try{FileInputStreamfis=newFileInputStream(file);BufferedInputStreambis=newBufferedInputStream(fis);byte[]buffer=newbyte[1024];intbytesRead;while((bytesRead=bis.read(buffer))!=-1){// ...
本例以FileInpuStream的read(buffer)方法,每次从源程序文件OpenFile.java中读取512个字节,存储在缓冲区buffer中,再将以buffer中的值构造的字符串new String(buffer)显示在屏幕上 import java.io.*; public class OpenFile { public static void main(String args[]) throws IOException { try { FileInputStream ...
用FileInputStream可以从文件获取输入流,这是InputStream常用的一个实现类。此外,ByteArrayInputStream可以在内存中模拟一个InputStream: importjava.io.*;publicclassMain{publicstaticvoidmain(String[] args)throwsIOException {byte[] data = {72,101,108,108,111,33};try(InputStreaminput=newByteArrayInputStream...
在这个ER图中,FILE实体表示文件,而BYTE_STREAM实体表示从文件中读取的字节流。它们之间的关系是,文件包含多个字节流。 序列图示例 接下来,我们可以用序列图展示读取字节流的过程。 FileFileInputStreamUserFileFileInputStreamUserrequest fileprovide byte dataread byteread next byteend of fileclose stream 在这个序列...
In a while loop we read a character from aFileInputStreamuntil thereadmethod returns -1. If the file is a text file and contains non-latin characters, we wrap theFileInputStreaminto anInputStreamReader. TheInputStreamReaderaccepts the character encoding as the second parameter. ...
1、是文件： FileInputStream, FileOutputStream, FileReader, FileWriter 2、是byte[]：ByteArrayInputStream, ByteArrayOutputStream 3、是Char[]: CharArrayReader, CharArrayWriter 4、是String: StringBufferInputStream, StringReader, StringWriter 5、网络数据流：InputStream, OutputStream, Reader, Writer...
Java中如何以二进制字节的方式来处理文件,前面我们提到Java中有流的概念,以二进制方式读写的主要流有:❑ InputStream/OutputStream:这是基类,它们是抽象类。❑ FileInputStream/FileOutputStream:输入源和输出目标是文件的流。❑ ByteArrayInputStream/ByteArrayOutputStream:输入源和输出目标是字节数组的流。❑ ...
FileReader(String fileName) InputStreamReader(InputStream in) //接收键盘输入作为输入流,把输入流放到缓冲流里面 BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); BufferReader in=new BufferReader(new FileReader(name))
Read text file with InputStreamReader InputStreamReaderis a bridge from byte streams to character streams. It reads bytes and decodes them into characters using a specified charset. Main.java import java.io.BufferedReader; import java.io.FileInputStream; ...
Creates aFileInputStreamby opening a connection to an actual file, the file named by the path namenamein the file system. A newFileDescriptorobject is created to represent this file connection. First, if there is a security manager, itscheckReadmethod is called with thenameargument as its arg...