Check end of file in java bufferedreader




















Thus redundant BufferedReader s will not copy data unnecessarily. Charset skip public long skip long n throws IOException Skips characters. A buffered character stream is ready if the buffer is not empty, or if the underlying character stream is ready. Overrides: ready in class Reader Returns: True if the next read is guaranteed not to block for input, false otherwise.

Note that returning false does not guarantee that the next read will block. Overrides: markSupported in class Reader Returns: true if and only if this stream supports the mark operation. Subsequent calls to reset will attempt to reposition the stream to this point. Overrides: mark in class Reader Parameters: readAheadLimit - Limit on the number of characters that may be read while still preserving the mark.

An attempt to reset the stream after reading characters up to this limit or beyond may fail. A limit value larger than the size of the input buffer will cause a new buffer to be allocated whose size is no smaller than limit.

Therefore large values should be used with care. Overrides: reset in class Reader Throws: IOException - If the stream has never been marked, or if the mark has been invalidated close public void close throws IOException Description copied from class: Reader Closes the stream and releases any system resources associated with it. Once the stream has been closed, further read , ready , mark , reset , or skip invocations will throw an IOException.

Closing a previously closed stream has no effect. The Stream is lazily populated, i. The reader must not be operated on during the execution of the terminal stream operation. Otherwise, the result of the terminal stream operation is undefined. After execution of the terminal stream operation there are no guarantees that the reader will be at a specific position from which to read the next character or line.

If an IOException is thrown when accessing the underlying BufferedReader , it is wrapped in an UncheckedIOException which will be thrown from the Stream method that caused the read to take place. This method will return a Stream if invoked on a BufferedReader that is closed. Connect and share knowledge within a single location that is structured and easy to search.

I have problem with reading the input until EOF in Java. In here, there are single input and the output consider the input each line. But, I have coded using Java, the single output will printed when I was entering two numbers. I made a test with BufferReader. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Collectives on Stack Overflow. Learn more. Ask Question. Asked 8 years, 5 months ago. Active 2 years, 7 months ago. Viewed k times. Example: input: 1 2 3 4 5 output: 0 1 0 1 0 But, I have coded using Java, the single output will printed when I was entering two numbers.

Improve this question. Probably br. Or make read behave? FileInputStream; import java. OutputStreamWriter; import javax. DocumentBuilderFactory; import javax. OutputKeys; import javax. Transformer; import javax. TransformerFactory; import javax. DOMSource; import javax. StreamResult; import javax. XPath; import javax. XPathConstants; import javax. XPathFactory; import org. Document; import org. Node; import org. NodeList; import org. NodeIterator; import org. Rusty Shackleford. Your output shows that null is being returned.

It is behaving exactly as it is described. It does not throw an exception. You have to handle it when it returns null, ie stop calling readLine. But why is it echoing the "EOF" and "rm



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