java.lang.Object | ||
↳ | java.io.Reader | |
↳ | java.io.StringReader |
A character stream whose source is a string.
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Inherited Fields | |||||||||||
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From class
java.io.Reader
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Public Constructors | |||||||||||
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Creates a new string reader.
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Public Methods | |||||||||||
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Closes the stream and releases any system resources associated with
it.
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Marks the present position in the stream.
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Tells whether this stream supports the mark() operation, which it does.
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Reads a single character.
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Reads characters into a portion of an array.
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Tells whether this stream is ready to be read.
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Resets the stream to the most recent mark, or to the beginning of the
string if it has never been marked.
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Skips the specified number of characters in the 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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Creates a new string reader.
s | String providing the character stream. |
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Closes the stream and releases any system resources associated with it. Once the stream has been closed, further read(), ready(), mark(), or reset() invocations will throw an IOException. Closing a previously closed stream has no effect.
Marks the present position in the stream. Subsequent calls to reset() will reposition the stream to this point.
readAheadLimit | Limit on the number of characters that may be read while still preserving the mark. Because the stream's input comes from a string, there is no actual limit, so this argument must not be negative, but is otherwise ignored. |
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IllegalArgumentException | If readAheadLimit is < 0 |
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IOException | If an I/O error occurs |
Tells whether this stream supports the mark() operation, which it does.
Reads a single character.
IOException | If an I/O error occurs |
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Reads characters into a portion of an array.
cbuf | Destination buffer |
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off | Offset at which to start writing characters |
len | Maximum number of characters to read |
IOException | If an I/O error occurs |
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Tells whether this stream is ready to be read.
IOException | If the stream is closed |
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Resets the stream to the most recent mark, or to the beginning of the string if it has never been marked.
IOException | If an I/O error occurs |
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Skips the specified number of characters in the stream. Returns the number of characters that were skipped.
The ns
parameter may be negative, even though the
skip
method of the Reader
superclass throws
an exception in this case. Negative values of ns
cause the
stream to skip backwards. Negative return values indicate a skip
backwards. It is not possible to skip backwards past the beginning of
the string.
If the entire string has been read or skipped, then this method has no effect and always returns 0.
ns | The number of characters to skip |
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IOException | If an I/O error occurs |
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