jdk.io.Writer
Abstract class for writing to character streams. The only methods that a subclass must implement are write(char[], int, int), flush(), and close(). Most subclasses, however, will override some of the methods defined here in order to provide higher efficiency, additional functionality, or both.
Abstract class for writing to character streams. The only methods that a subclass must implement are write(char[], int, int), flush(), and close(). Most subclasses, however, will override some of the methods defined here in order to provide higher efficiency, additional functionality, or both.
appendclj
(append this csq)(append this csq start end)Appends a subsequence of the specified character sequence to this writer. Appendable.
An invocation of this method of the form out.append(csq, start, end) when csq is not null behaves in exactly the same way as the invocation
out.write(csq.subSequence(start, end).toString())
csq - The character sequence from which a subsequence will be appended. If csq is null, then characters will be appended as if csq contained the four characters "null". - java.lang.CharSequence
start - The index of the first character in the subsequence - int
end - The index of the character following the last character in the subsequence - int
returns: This writer - java.io.Writer
throws: java.lang.IndexOutOfBoundsException - If start or end are negative, start is greater than end, or end is greater than csq.length()
Appends a subsequence of the specified character sequence to this writer.
Appendable.
An invocation of this method of the form out.append(csq, start,
end) when csq is not null behaves in exactly the
same way as the invocation
out.write(csq.subSequence(start, end).toString())
csq - The character sequence from which a subsequence will be appended. If csq is null, then characters will be appended as if csq contained the four characters "null". - `java.lang.CharSequence`
start - The index of the first character in the subsequence - `int`
end - The index of the character following the last character in the subsequence - `int`
returns: This writer - `java.io.Writer`
throws: java.lang.IndexOutOfBoundsException - If start or end are negative, start is greater than end, or end is greater than csq.length()closeclj
(close this)Closes the stream, flushing it first. Once the stream has been closed, further write() or flush() invocations will cause an IOException to be thrown. Closing a previously closed stream has no effect.
throws: java.io.IOException - If an I/O error occurs
Closes the stream, flushing it first. Once the stream has been closed, further write() or flush() invocations will cause an IOException to be thrown. Closing a previously closed stream has no effect. throws: java.io.IOException - If an I/O error occurs
flushclj
(flush this)Flushes the stream. If the stream has saved any characters from the various write() methods in a buffer, write them immediately to their intended destination. Then, if that destination is another character or byte stream, flush it. Thus one flush() invocation will flush all the buffers in a chain of Writers and OutputStreams.
If the intended destination of this stream is an abstraction provided by the underlying operating system, for example a file, then flushing the stream guarantees only that bytes previously written to the stream are passed to the operating system for writing; it does not guarantee that they are actually written to a physical device such as a disk drive.
throws: java.io.IOException - If an I/O error occurs
Flushes the stream. If the stream has saved any characters from the various write() methods in a buffer, write them immediately to their intended destination. Then, if that destination is another character or byte stream, flush it. Thus one flush() invocation will flush all the buffers in a chain of Writers and OutputStreams. If the intended destination of this stream is an abstraction provided by the underlying operating system, for example a file, then flushing the stream guarantees only that bytes previously written to the stream are passed to the operating system for writing; it does not guarantee that they are actually written to a physical device such as a disk drive. throws: java.io.IOException - If an I/O error occurs
writeclj
(write this c)(write this cbuf off len)Writes a portion of an array of characters.
cbuf - Array of characters - char[]
off - Offset from which to start writing characters - int
len - Number of characters to write - int
throws: java.io.IOException - If an I/O error occurs
Writes a portion of an array of characters. cbuf - Array of characters - `char[]` off - Offset from which to start writing characters - `int` len - Number of characters to write - `int` throws: java.io.IOException - If an I/O error occurs
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