No examples for this method.
Frequently called with: [Clear]
-1
| java.lang.Object | ||
| ↳ | java.io.Reader | |
| ↳ | java.io.BufferedReader | |
 Known Direct Subclasses
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Wraps an existing Reader and buffers the input. Expensive interaction with the underlying reader is minimized, since most (smaller) requests can be satisfied by accessing the buffer alone. The drawback is that some extra space is required to hold the buffer and that copying takes place when filling that buffer, but this is usually outweighed by the performance benefits.
BufferedReader buf = new BufferedReader(new FileReader("file.java"));
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Inherited Fields
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| From class java.io.Reader
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Constructs a new
BufferedReader, providing
in with a buffer of 8192 characters.
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Constructs a new
BufferedReader, providing
in with
size characters of buffer.
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Closes this reader.
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Sets a mark position in this reader.
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Indicates whether this reader supports the
mark() and
reset() methods.
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Reads a single character from this reader and returns it with the two higher-order bytes set to 0.
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Reads at most
length characters from this reader and stores them at
offset in the character array
buffer.
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Returns the next line of text available from this reader.
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Indicates whether this reader is ready to be read without blocking.
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Resets this reader's position to the last
mark() location.
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Skips
byteCount bytes in this stream.
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Inherited Methods
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| From class java.io.Reader
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| From class java.lang.Object
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| From interface java.io.Closeable
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| From interface java.lang.Readable
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Constructs a new BufferedReader, providing in with a buffer of 8192 characters.
| in | the Reader the buffer reads from. |
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Constructs a new BufferedReader, providing in with size characters of buffer.
| in | the InputStream the buffer reads from. |
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| size | the size of buffer in characters. |
| IllegalArgumentException | if size <= 0. |
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Closes this reader. This implementation closes the buffered source reader and releases the buffer. Nothing is done if this reader has already been closed.
| IOException | if an error occurs while closing this reader. |
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Sets a mark position in this reader. The parameter markLimit indicates how many characters can be read before the mark is invalidated. Calling reset() will reposition the reader back to the marked position if markLimit has not been surpassed.
| markLimit | the number of characters that can be read before the mark is invalidated. |
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| IllegalArgumentException | if markLimit < 0. |
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| IOException | if an error occurs while setting a mark in this reader. |
Reads a single character from this reader and returns it with the two higher-order bytes set to 0. If possible, BufferedReader returns a character from the buffer. If there are no characters available in the buffer, it fills the buffer and then returns a character. It returns -1 if there are no more characters in the source reader.
| IOException | if this reader is closed or some other I/O error occurs. |
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Reads at most length characters from this reader and stores them at offset in the character array buffer. Returns the number of characters actually read or -1 if the end of the source reader has been reached. If all the buffered characters have been used, a mark has not been set and the requested number of characters is larger than this readers buffer size, BufferedReader bypasses the buffer and simply places the results directly into buffer.
| buffer | the character array to store the characters read. |
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| offset | the initial position in buffer to store the bytes read from this reader. |
| length | the maximum number of characters to read, must be non-negative. |
| IndexOutOfBoundsException | if offset < 0 or length < 0, or if offset + length is greater than the size of buffer. |
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| IOException | if this reader is closed or some other I/O error occurs. |
Returns the next line of text available from this reader. A line is represented by zero or more characters followed by '\n', '\r', "\r\n" or the end of the reader. The string does not include the newline sequence.
null if no characters were read before the end of the reader has been reached.| IOException | if this reader is closed or some other I/O error occurs. |
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Indicates whether this reader is ready to be read without blocking.
true if this reader will not block when read is called, false if unknown or blocking will occur.| IOException | if this reader is closed or some other I/O error occurs. |
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Resets this reader's position to the last mark() location. Invocations of read() and skip() will occur from this new location.
| IOException | if this reader is closed or no mark has been set. |
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Skips byteCount bytes in this stream. Subsequent calls to read will not return these bytes unless reset is used. Skipping characters may invalidate a mark if markLimit is surpassed.
| byteCount | the maximum number of characters to skip. |
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| IllegalArgumentException | if byteCount < 0. |
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| IOException | if this reader is closed or some other I/O error occurs. |