Is there way to open a file without save it in file system? For example: I have a byte object or java.io.File (or Stream) and i want to open a file without save it.
Can i use Runtime.getRuntime().exec(....) to open a file not in file system?
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What do you mean by "open a file without saving it?". A file cannot be opened unless it exists on disk.
Perhaps you are thinking of the way you can open a new document in, say, Microsoft Word, without saving it. That's something completely different. You could implement such a user interface in Java, but that has little to do with Java File objects.
You can create a Java File object for a file that does not exist. A Java File object is just an abstract pathname. However, creating a Java File object does not mean you have "opened" the file. To open the file, you need a RandomAccessFile, an InputStream, an OutputStream or an NIO channel (I'm a bit hazy on them). For any of those, the file must already exist or will be created as part of the opening process. [ July 17, 2006: Message edited by: Peter Chase ]
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