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Added in API level 1

Summary: Inherited Fields | Ctors | Methods | Inherited Methods | [Expand All]

StringWriter

public class StringWriter
extends Writer

java.lang.Object
↳	java.io.Writer
	↳	java.io.StringWriter

A character stream that collects its output in a string buffer, which can then be used to construct a string.

Closing a StringWriter has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.

Summary

Inherited fields

From class


    java.io.Writer

Public constructors
`StringWriter()` Create a new string writer using the default initial string-buffer size.
`StringWriter(int initialSize)` Create a new string writer using the specified initial string-buffer size.

Public methods
`StringWriter`	`append(char c)` Appends the specified character to this writer.
`StringWriter`	`append(CharSequence csq, int start, int end)` Appends a subsequence of the specified character sequence to this writer.
`StringWriter`	`append(CharSequence csq)` Appends the specified character sequence to this writer.
`void`	`close()` Closing a `StringWriter` has no effect.
`void`	`flush()` Flush the stream.
`StringBuffer`	`getBuffer()` Return the string buffer itself.
`String`	`toString()` Return the buffer's current value as a string.
`void`	`write(String str)` Write a string.
`void`	`write(int c)` Write a single character.
`void`	`write(String str, int off, int len)` Write a portion of a string.
`void`	`write(char[] cbuf, int off, int len)` Write a portion of an array of characters.

Inherited methods

From class


  
    java.io.Writer

`Writer`	`append(char c)` Appends the specified character to this writer.
`Writer`	`append(CharSequence csq, int start, int end)` Appends a subsequence of the specified character sequence to this writer.
`Writer`	`append(CharSequence csq)` Appends the specified character sequence to this writer.
`abstract void`	`close()` Closes the stream, flushing it first.
`abstract void`	`flush()` Flushes the stream.
`void`	`write(String str)` Writes a string.
`void`	`write(int c)` Writes a single character.
`void`	`write(String str, int off, int len)` Writes a portion of a string.
`abstract void`	`write(char[] cbuf, int off, int len)` Writes a portion of an array of characters.
`void`	`write(char[] cbuf)` Writes an array of characters.

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


  
    java.lang.Appendable

From interface


  
    java.io.Closeable

From interface


  
    java.io.Flushable

From interface


  
    java.lang.AutoCloseable

Public constructors

StringWriter

Added in API level 1

StringWriter ()

Create a new string writer using the default initial string-buffer size.

StringWriter

Added in API level 1

StringWriter (int initialSize)

Create a new string writer using the specified initial string-buffer size.

Parameters
`initialSize`	`int`: The number of `char` values that will fit into this buffer before it is automatically expanded

Throws
`IllegalArgumentException`	If `initialSize` is negative

Public methods

append

Added in API level 1

StringWriter append (char c)

Appends the specified character to this writer.

An invocation of this method of the form out.append(c) behaves in exactly the same way as the invocation

     out.write(c)

Parameters
`c`	`char`: The 16-bit character to append

Returns
`StringWriter`	This writer

append

Added in API level 1

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

Appends a subsequence of the specified character sequence to this writer.

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())

Parameters
`csq`	`CharSequence`: 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"`.
`start`	`int`: The index of the first character in the subsequence
`end`	`int`: The index of the character following the last character in the subsequence

Returns
`StringWriter`	This writer

Throws
`IndexOutOfBoundsException`	If `start` or `end` are negative, `start` is greater than `end`, or `end` is greater than `csq.length()`

append

Added in API level 1

StringWriter append (CharSequence csq)

Appends the specified character sequence to this writer.

An invocation of this method of the form out.append(csq) behaves in exactly the same way as the invocation

     out.write(csq.toString())

Depending on the specification of toString for the character sequence csq, the entire sequence may not be appended. For instance, invoking the toString method of a character buffer will return a subsequence whose content depends upon the buffer's position and limit.

Parameters
`csq`	`CharSequence`: The character sequence to append. If `csq` is `null`, then the four characters `"null"` are appended to this writer.

Returns
`StringWriter`	This writer

close

Added in API level 1

void close ()

Closing a StringWriter has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.

Throws
`IOException`

flush

Added in API level 1

void flush ()

Flush the stream.

getBuffer

Added in API level 1

StringBuffer getBuffer ()

Return the string buffer itself.

Returns
`StringBuffer`	StringBuffer holding the current buffer value.

toString

Added in API level 1

String toString ()

Return the buffer's current value as a string.

Returns
`String`	a string representation of the object.

write

Added in API level 1

void write (String str)

Write a string.

Parameters
`str`	`String`: String to be written

write

Added in API level 1

void write (int c)

Write a single character.

Parameters
`c`	`int`: int specifying a character to be written

write

Added in API level 1

void write (String str, 
                int off, 
                int len)

Write a portion of a string.

Parameters
`str`	`String`: String to be written
`off`	`int`: Offset from which to start writing characters
`len`	`int`: Number of characters to write

write

Added in API level 1

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

Write a portion of an array of characters.

Parameters
`cbuf`	`char`: Array of characters
`off`	`int`: Offset from which to start writing characters
`len`	`int`: Number of characters to write

Interfaces

Classes

Exceptions

Errors

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StringWriter

Summary

Inherited fields

Public constructors

Public methods

Inherited methods

Public constructors

StringWriter

StringWriter

Public methods

append

append

append

close

flush

getBuffer

toString

write

write

write

write