日常-4-18-2015

new RandomAccessFile（File f，“rw”）

write（int b)

write（byte[] , from,n）

read()

writeInt()

writeDouble()

read

^

for(byte 

getfilePoint()-n

seek(long)

readUTF

throw

throws

canread

canwrite

canExecute

isFile

isDirectory

isHiddengetAbsolutePath

getParent

getName

getFreeSpace

getTotleSpace

exist

length

filenameFilter

renameto

listFiles(FileNameFilter)

list(fileFilter)

mkdirs

mkdir

createNewFile

createtempFile

latmodified

javaScrip Object Notation

Open Graphic Library