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## org.apache.commons.io.input
Class CharSequenceReader

    java.lang.Object
      java.io.Reader
          org.apache.commons.io.input.CharSequenceReader

All Implemented Interfaces:
  Closeable, Serializable, Readable

    public class CharSequenceReader

extends Reader
implements Serializable

`Reader` implementation that can read from String, StringBuffer, StringBuilder or CharBuffer.

Note: Supports `mark(int)` and `reset()`.

Since:
  1.4
Version:
  $Id: CharSequenceReader.java 1307461 2012-03-30 15:12:29Z ggregory $
See Also:
  Serialized Form

Field Summary

Fields inherited from class java.io.Reader
`lock`

Constructor Summary
`CharSequenceReader(CharSequence charSequence)` Construct a new instance with the specified character sequence.

Method Summary
`void` | `close()` Close resets the file back to the start and removes any marked position.
`void` | `mark(int readAheadLimit)` Mark the current position.
`boolean` | `markSupported()` Mark is supported (returns true).
`int` | `read()` Read a single character.
`int` | `read(char[] array, int offset, int length)` Read the sepcified number of characters into the array.
`void` | `reset()` Reset the reader to the last marked position (or the beginning if mark has not been called).
`long` | `skip(long n)` Skip the specified number of characters.
`String` | `toString()` Return a String representation of the underlying character sequence.

Methods inherited from class java.io.Reader
`read, read, ready`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### CharSequenceReader

    public CharSequenceReader(CharSequence charSequence)

  Construct a new instance with the specified character sequence.

  Parameters:
    `charSequence` - The character sequence, may be `null`

Method Detail

### close

    public void close()

  Close resets the file back to the start and removes any marked position.

  Specified by:
    `close` in interface `Closeable`
  Specified by:
    `close` in class `Reader`

### mark

    public void mark(int readAheadLimit)

  Mark the current position.

  Overrides:
    `mark` in class `Reader`
  Parameters:
    `readAheadLimit` - ignored

### markSupported

    public boolean markSupported()

  Mark is supported (returns true).

  Overrides:
    `markSupported` in class `Reader`
  Returns:
    `true`

### read

    public int read()

  Read a single character.

  Overrides:
    `read` in class `Reader`
  Returns:
    the next character from the character sequence or -1 if the end has been reached.

### read

    public int read(char[] array,
                    int offset,
                    int length)

  Read the sepcified number of characters into the array.

  Specified by:
    `read` in class `Reader`
  Parameters:
    `array` - The array to store the characters in
    `offset` - The starting position in the array to store
    `length` - The maximum number of characters to read
  Returns:
    The number of characters read or -1 if there are no more

### reset

    public void reset()

  Reset the reader to the last marked position (or the beginning if mark has not been called).

  Overrides:
    `reset` in class `Reader`

### skip

    public long skip(long n)

  Skip the specified number of characters.

  Overrides:
    `skip` in class `Reader`
  Parameters:
    `n` - The number of characters to skip
  Returns:
    The actual number of characters skipped

### toString

    public String toString()

  Return a String representation of the underlying character sequence.

  Overrides:
    `toString` in class `Object`
  Returns:
    The contents of the character sequence

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