java.io

Class StringWriter

java.lang.Object

java.io.Writer

java.io.StringWriter

All Implemented Interfaces:

Appendable, AutoCloseable

public class StringWriter
extends Writer
implements Appendable

Author:

shannah

Field Summary

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
StringWriter()
StringWriter(int initialSize)

Method Summary

Modifier and Type	Method and Description
StringWriter	append(char c) Appends the specified character.
StringWriter	append(CharSequence csq) Appends the character sequence csq.
StringWriter	append(CharSequence csq, int start, int end) Appends a subsequence of csq.
void	close() Close the stream, flushing it first.
void	flush() Flush the stream.
StringBuffer	getBuffer()
String	toString() Returns a string representation of the object.
void	write(char[] cbuf) Write an array of characters.
void	write(char[] cbuf, int off, int len) Write a portion of an array of characters.
void	write(int c) Write a single character.
void	write(String str) Write a string.
void	write(String str, int off, int len) Write a portion of a string.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

StringWriter

public StringWriter()

StringWriter

public StringWriter(int initialSize)

Method Detail

close

public void close()
           throws IOException

Description copied from class: Writer

Close the stream, flushing it first. Once a stream has been closed, further write() or flush() invocations will cause an IOException to be thrown. Closing a previously-closed stream, however, has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in class Writer

Throws:

IOException

flush

public void flush()
           throws IOException

Description copied from class: Writer

Flush 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.

Specified by:

flush in class Writer

Throws:

IOException

write

public void write(char[] cbuf,
                  int off,
                  int len)
           throws IOException

Description copied from class: Writer

Write a portion of an array of characters.

Specified by:

write in class Writer

Throws:

IOException

write

public void write(String str,
                  int off,
                  int len)
           throws IOException

Description copied from class: Writer

Write a portion of a string.

Overrides:

write in class Writer

Throws:

IOException

write

public void write(int c)
           throws IOException

Description copied from class: Writer

Write a single character. The character to be written is contained in the 16 low-order bits of the given integer value; the 16 high-order bits are ignored. Subclasses that intend to support efficient single-character output should override this method.

Overrides:

write in class Writer

Throws:

IOException

write

public void write(String str)
           throws IOException

Description copied from class: Writer

Write a string.

Overrides:

write in class Writer

Throws:

IOException

write

public void write(char[] cbuf)
           throws IOException

Description copied from class: Writer

Write an array of characters.

Overrides:

write in class Writer

Throws:

IOException

toString

public String toString()

Description copied from class: Object

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method. The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of: getClass().getName() + '@' + Integer.toHexString(hashCode())

Overrides:

toString in class Object

getBuffer

public StringBuffer getBuffer()

append

public StringWriter append(char c)

Description copied from interface: Appendable

Appends the specified character.

Specified by:

append in interface Appendable

Parameters:

c - the character to append.

Returns:

this Appendable.

append

public StringWriter append(CharSequence csq)

Description copied from interface: Appendable

Appends the character sequence csq. Implementation classes may not append the whole sequence, for example if the target is a buffer with limited size.

If csq is null, the characters "null" are appended.

Specified by:

append in interface Appendable

Parameters:

csq - the character sequence to append.

Returns:

this Appendable.

append

public StringWriter append(CharSequence csq,
                           int start,
                           int end)

Description copied from interface: Appendable

Appends a subsequence of csq.

If csq is not null then calling this method is equivalent to calling append(csq.subSequence(start, end)).

If csq is null, the characters "null" are appended.

Specified by:

append in interface Appendable

Parameters:

csq - the character sequence to append.

start - the first index of the subsequence of csq that is appended.

end - the last index of the subsequence of csq that is appended.

Returns:

this Appendable.