Java inputstream end of stream
No, you can't. InputStream is designed to work with remote resources, so you can't know if it's there until you actually read from it. . You may be able to use a however, which allows you to read from the stream to see if there's something there, and then push it back up the stream (that's not how it really works, but that's the way it behaves to client code).The method reads the next byte of the data from the the input stream and returns int in the range of 0 to 255. If no byte is available because the end of the stream has been reached, the returned value is 1. java inputstream end of stream
Reads the next byte of data from the input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value 1 is returned. This method blocks until input data is available, the end of the stream
Java. io. InputStream Class in Java. integer specifying the read limit of the input Stream Return: void; read(): reads next byte of data from the Input Stream. The value byte is returned in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value 1 is returned. Syntax: Constructor Detail InputStream public InputStream() Method Detail read public abstract int read() throws IOException Reads the next byte of data from the input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value java inputstream end of stream End of Stream. If the read() method returns 1, the end of stream has been reached, meaning there is no more data to read in the InputStream. That is, 1 as int value, not 1 as byte or short value. There is a difference here! When the end of stream has been reached, you can close the InputStream.
End of stream on a socket occurs when the peer closes the connection, or shuts it down for output, and not before. 1 is not an end of message indicator. @John That is correct. If you want messages, you have to implement them yourself: lines, lengthword prefixes, selfdescribing protocols like XML, XDR, java inputstream end of stream I tried to work around this by writing a kind of marker object to signify the end of the object stream: import public enum ObjectStreamStatus implements Serializable EOF Then in the code reading the object i checked for this EOF object in the object reading loop. A data input stream lets an application read primitive Java data types from an underlying input stream in a machineindependent way. An application uses a data output stream to write data that can later be read by a data input stream. DataInputStream is not necessarily safe for multithreaded access. java. io. InputStream; All Implemented Interfaces: Closeable, DataInput, which exceed the end of the allotted data will reflect the end of data in the same way that they would indicate the end of the stream: bytewise reads will return 1 as the byte read or number of bytes read, and primitive reads will throwRating: 4.59 / Views: 819