[/url] [url=file:///F:/资料/文字资料/j2sdk-1_4_2-doc/docs/api/overview-summary.html]Overview
Class
JavaTM 2 Platform
Std. Ed. v1.4.2
SUMMARY: NESTED | FIELD | CONSTR | METHOD
DETAIL: FIELD | CONSTR | METHOD
java.io
Interface ObjectInputAll Superinterfaces: DataInput All Known Implementing Classes: ObjectInputStream public interface ObjectInput extends DataInputObjectInput extends the DataInput interface to include the reading of objects. DataInput includes methods for the input of primitive types, ObjectInput extends that interface to include objects, arrays, and Strings. ObjectInput继承了DataInput接口，增加了对对象的读入。DataInput包括了简单类型输入的 方法，ObjectInput继承了该接口并加入了对象、数组和字符串。
Since: JDK1.1 See Also: InputStream, ObjectOutputStream, ObjectInputStreamMethod Summary
int
Returns the number of bytes that can be read without blocking. 返回不阻塞能读入的字节数。
void
close()
Closes the input stream. 关闭输入流。
int
read()
Reads a byte of data. 读入一个字节的数据。
int
)]read(byte[] b)
Reads into an array of bytes. 将字节读入数组。
int
,]read(byte[] b, int off, int len)
Reads into an array of bytes. 将字节读入数组。
Read and return an object. 读取并返回一个对象。
long
skip(long n)
Skips n bytes of input. 跳过n个输入字节。
Methods inherited from interface java.io.DataInput
readBoolean, readByte, readChar, readDouble, readFloat, )]readFully, ,]readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, skipBytes
Method Detail
readObjectpublic Object readObject()
throws ClassNotFoundException,
Read and return an object. The class that implements this interface defines where the object is "read" from. 读取并返回一个对象。实现该接口的类定义了对象从何读取。
Returns: the object read from the stream 从流中读取的对象 Throws: ClassNotFoundException - If the class of a serialized object cannot be found. 如果序列化对象的类不能找到时抛出。 IOException - If any of the usual Input/Output related exceptions occur. 如果任何常见的输入/输出相关异常发生时抛出。readpublic int read()
throws IOException
Reads a byte of data. This method will block if no input is available. 读入一个字节的数据。如果没有输入可用，方法将阻塞。
Returns: the byte read, or -1 if the end of the stream is reached. 读取的字节，当到达流末端时返回-1。 Throws: IOException - If an I/O error has occurred. 如果I/O错误发生时抛出。readpublic int read(byte[] b)
throws IOException
Reads into an array of bytes. This method will block until some input is available. 将字节读入数组。方法将阻塞至输入可用。
Parameters: b - the buffer into which the data is read 数据被读入的缓冲 Returns: the actual number of bytes read, -1 is returned when the end of the stream is reached. 读入的实际字节数，当到达流末端时返回-1。 Throws: IOException - If an I/O error has occurred. 如果I/O错误发生时抛出。readpublic int read(byte[] b,
int off,
int len)
throws IOException
Reads into an array of bytes. This method will block until some input is available. 将字节读入数组。方法将阻塞至输入可用。
Parameters: b - the buffer into which the data is read 数据被读入的缓冲 off - the start offset of the data 数据的起始偏移 len - the maximum number of bytes read 读入字节的最大数 Returns: the actual number of bytes read, -1 is returned when the end of the stream is reached. 读入的实际字节数，当到达流末端时返回-1。 Throws: IOException - If an I/O error has occurred. 如果I/O错误发生时抛出。skippublic long skip(long n)
throws IOException
Skips n bytes of input. 跳过n个输入字节。
Parameters: n - the number of bytes to be skipped 跳过的字节数 Returns: the actual number of bytes skipped. 实际跳过的字节数。 Throws: IOException - If an I/O error has occurred. 如果I/O错误发生时抛出。availablepublic int available()
throws IOException
Returns the number of bytes that can be read without blocking. 返回不阻塞能读入的字节数。
Returns: the number of available bytes. 可用字节数。 Throws: IOException - If an I/O error has occurred. 如果I/O错误发生时抛出。closepublic void close()
throws IOException
Closes the input stream. Must be called to release any resources associated with the stream. 关闭输入流。必须调用以释放与流相关的所有资源。
Throws: IOException - If an I/O error has occurred. 如果I/O错误发生时抛出。[/url][url=file:///F:/资料/文字资料/j2sdk-1_4_2-doc/docs/api/overview-summary.html]Overview
Class
JavaTM 2 Platform
Std. Ed. v1.4.2
SUMMARY: NESTED | FIELD | CONSTR | METHOD
DETAIL: FIELD | CONSTR | METHOD
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
