com.firefly.utils.io

类 BufferedRandomAccessFile

java.lang.Object

java.io.RandomAccessFile

com.firefly.utils.io.BufferedRandomAccessFile

所有已实现的接口:

Closeable, DataInput, DataOutput, AutoCloseable

public class BufferedRandomAccessFile
extends RandomAccessFile

字段概要

字段

限定符和类型	字段和说明
protected boolean	append
protected byte[]	buf
protected int	bufbitlen
protected boolean	bufdirty
protected long	bufendpos
protected long	bufmask
protected int	bufsize
protected long	bufstartpos
protected int	bufusedsize
protected long	curpos
protected long	fileendpos
protected String	filename
protected long	initfilelen

构造器概要

构造器

构造器和说明
BufferedRandomAccessFile(File file)
BufferedRandomAccessFile(File file, int bufbitlen)
BufferedRandomAccessFile(File file, String mode)
BufferedRandomAccessFile(File file, String mode, int bufbitlen)
BufferedRandomAccessFile(String name)
BufferedRandomAccessFile(String name, int bufbitlen)
BufferedRandomAccessFile(String name, String mode)
BufferedRandomAccessFile(String name, String mode, int bufbitlen)

方法概要

限定符和类型	方法和说明
boolean	append(byte bw)
void	close()
long	getFilePointer()
long	length()
static void	main(String[] args)
int	read(byte[] b)
int	read(byte[] b, int off, int len)
byte	read(long pos)
void	seek(long pos)
void	setLength(long newLength)
boolean	write(byte bw)
void	write(byte[] b)
void	write(byte[] b, int off, int len)
boolean	write(byte bw, long pos)

从类继承的方法 java.io.RandomAccessFile

getChannel, getFD, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, skipBytes, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

buf

protected byte[] buf

bufbitlen

protected int bufbitlen

bufsize

protected int bufsize

bufmask

protected long bufmask

bufdirty

protected boolean bufdirty

bufusedsize

protected int bufusedsize

curpos

protected long curpos

bufstartpos

protected long bufstartpos

bufendpos

protected long bufendpos

fileendpos

protected long fileendpos

append

protected boolean append

filename

protected String filename

initfilelen

protected long initfilelen

构造器详细资料

BufferedRandomAccessFile

public BufferedRandomAccessFile(String name)
                         throws IOException

抛出:

IOException

BufferedRandomAccessFile

public BufferedRandomAccessFile(File file)
                         throws IOException,
                                FileNotFoundException

抛出:

IOException

FileNotFoundException

BufferedRandomAccessFile

public BufferedRandomAccessFile(String name,
                                int bufbitlen)
                         throws IOException

抛出:

IOException

BufferedRandomAccessFile

public BufferedRandomAccessFile(File file,
                                int bufbitlen)
                         throws IOException,
                                FileNotFoundException

抛出:

IOException

FileNotFoundException

BufferedRandomAccessFile

public BufferedRandomAccessFile(String name,
                                String mode)
                         throws IOException

抛出:

IOException

BufferedRandomAccessFile

public BufferedRandomAccessFile(File file,
                                String mode)
                         throws IOException,
                                FileNotFoundException

抛出:

IOException

FileNotFoundException

BufferedRandomAccessFile

public BufferedRandomAccessFile(String name,
                                String mode,
                                int bufbitlen)
                         throws IOException

抛出:

IOException

BufferedRandomAccessFile

public BufferedRandomAccessFile(File file,
                                String mode,
                                int bufbitlen)
                         throws IOException,
                                FileNotFoundException

抛出:

IOException

FileNotFoundException

方法详细资料

read

public byte read(long pos)
          throws IOException

抛出:

IOException

write

public boolean write(byte bw)
              throws IOException

抛出:

IOException

append

public boolean append(byte bw)
               throws IOException

抛出:

IOException

write

public boolean write(byte bw,
                     long pos)
              throws IOException

抛出:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

指定者:

write 在接口中 DataOutput

覆盖:

write 在类中 RandomAccessFile

抛出:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

覆盖:

read 在类中 RandomAccessFile

抛出:

IOException

write

public void write(byte[] b)
           throws IOException

指定者:

write 在接口中 DataOutput

覆盖:

write 在类中 RandomAccessFile

抛出:

IOException

read

public int read(byte[] b)
         throws IOException

覆盖:

read 在类中 RandomAccessFile

抛出:

IOException

seek

public void seek(long pos)
          throws IOException

覆盖:

seek 在类中 RandomAccessFile

抛出:

IOException

length

public long length()
            throws IOException

覆盖:

length 在类中 RandomAccessFile

抛出:

IOException

setLength

public void setLength(long newLength)
               throws IOException

覆盖:

setLength 在类中 RandomAccessFile

抛出:

IOException

getFilePointer

public long getFilePointer()
                    throws IOException

覆盖:

getFilePointer 在类中 RandomAccessFile

抛出:

IOException

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

覆盖:

close 在类中 RandomAccessFile

抛出:

IOException

main

public static void main(String[] args)
                 throws IOException

抛出:

IOException