Java 流框架 学习笔记
2021-04-12 10:04:25 0 举报AI智能生成
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Java 流框架（InputStream，OutputStream，Reader，Writer）学习笔记
作者其他创作
大纲/内容
Java 流框架
字节流
InputStream
方法
int read()
int read(byte[] b)
long skip(long n)
int available()
void close()
void mark(int readlimit)
boolean markSupported()
void reset()
子类
ByteArrayInputStream
FileInputStream
FilterInputStream
BufferedInputStream
DataInputStream
int readInt()
long readLong()
short readShort()
byte readByte()
char readChar()
boolean readBoolean()
double readDouble()
float readFloat()
void readFully(byte[] b)
String readUTF()
int skipBytes(int n)
GZIPInputStream
ZipInputStream
ZipEntry getNextEntry()
void closeEntry()
JarInputStream
StringBufferInputStream
ObjectInputStream
Object readObject()
OutputStream
void write( int n)
void write(byte[] b)
void flush()
ByteArrayOutputStream
FileOutputStream
FilterOutputStream
BufferedOutputStream
DataOutputStream
void writeInt(int i)
void writeLong(long l)
void writeShort(int s)
void writeByte(int b)
void writeChar(int c)
void writeChars(String s)
void writeBoolean(boolean b)
void writeDouble(double d)
void writeFloat(float f)
void writeUTF(String s)
GZIPOutputStream
ZipOutputStream
void putNextEntry(ZipEntry ze)
void setLevel(int level)
void setMethod(int method)
JarOutputStream
StringBufferOutputStream
ObjectOutputStream
void writeObject(Object o)
Zip文件相关类
ZipEntry：Zip压缩包中的项
long getCrc()
String getName()
long getSize()
boolean isDirectory()
void setSize(long size)
void setCrc(long crc)
ZipFile：Zip文件
Enumeration entries()：可以枚举这个ZIP文件中各个项ZipEntry的Enumeration对象
ZipEntry getEntry(String name)
InputStream getInputStream(ZipEntry entry)
String getName()：返回这个ZIP文件的路径
示例
读文件
写文件
字符流
Reader
BufferedReader
LineNumberReader
InputStreamReader
FileReader
StringReader
CharArrayReader
Writer
BufferedWriter
OutputStreamWriter
FileWriter
StringWriter
CharArrayWriter
文件类
File
static separator
boolean exists()
boolean mkdir()
boolean mkdirs()
boolean delete()
boolean renameTo(File dest)
boolean isFile()
boolean createNewFile()
String getPath()
String getAbsolutePath()
File getAbsoluteFile()
String getParent()
File getParentFile()
String[] list()
String[] list(FilenameFilter filter)
File[] listFiles()
File[] listFiles(FilenameFilter filter)
Paths
Path
Path resolve(Path other)
Path resolve(String other)
Path resolveSibling(Path other)
Path resolveSibling(String other)
Path relatiivize(Path path)
Path normalize()
Path toAbsolutePath()
Path getParent()
Path getFileName()
Path getRoot()
File toFile()
Files
byte[] readAllBytes(Path path)
void delete(Path path)
void deleteIfExists(Path path)
boolean exists(Path path)
boolean isHidden(Path path)
boolean isReadable(Path path)
boolean isWriter(Path path)
boolean isExecutable(Path path)
boolean isDirectory(Path path)
boolean isRegularFile(Path path)
boolean isSymbolicLink(Path path)
long size(Path path)
DirectoryStream newDirectoryStream(Path path)：获取给定上当中可以遍历所有文件和目录的迭代器
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