Java I/O stream输入输出初整理
2021/10/15 1:14:44
本文主要是介绍Java I/O stream输入输出初整理,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
I/O stream
File
File f =new File()path getPath() delete() exists() list()
byte
InputStream or OutputStream (abstract
FileInputStream/FileOutputStream
FileInputStream i=new FileInputStream(path or File) read()/write() //one byte read(byte b[])/write(byte[]b) close()
FilterInputStream
DataInputstream or.. 转换
OutputStream fos=new FileOutputStream(path) // FileOutputStream fos=new FileOutputStream(path) DataOutputStrean dos =new DataOutputStrean(fos) readInt()/writeDouble() # one unit #####BufferedInputStream flush() read(byte b[]) write(byte[] b)
PrintStream
FileOutputStream fos=new FileOutputStream(path or File) PrintStream ps=new PrintStream(fos) print() println()
char
Reader ###Writer
InputStreamReader / OutputStreamWriter
FileOutputStream fos=new FileOutputStream(path or File) Writer ow=new OutputStreamWriter(fos) //字节转字符!
FileReader/FileWriter
实质还是字节输入输出类转换
FileReader fr=new FileReader(path or File) //InputStreamReader子类实质还是字节转 read() write()
BufferedWriter/Reader
PrintWriter
RandomAccessFile
感觉这个挺有用
RandomAccessFile rf=new RandomAccessFile(path/File,"r/rw") read()write() seek() pointer
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