PushbackReader.Unread Method
Definition
Important
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Overloads
Unread(Char[]) |
Pushes back an array of characters by copying it to the front of the pushback buffer. |
Unread(Int32) |
Pushes back a single character by copying it to the front of the pushback buffer. |
Unread(Char[], Int32, Int32) |
Pushes back a portion of an array of characters by copying it to the front of the pushback buffer. |
Unread(Char[])
Pushes back an array of characters by copying it to the front of the pushback buffer.
[Android.Runtime.Register("unread", "([C)V", "GetUnread_arrayCHandler")]
public virtual void Unread (char[]? cbuf);
[<Android.Runtime.Register("unread", "([C)V", "GetUnread_arrayCHandler")>]
abstract member Unread : char[] -> unit
override this.Unread : char[] -> unit
Parameters
- cbuf
- Char[]
Character array to push back
- Attributes
Exceptions
if this reader is closed or the free space in the internal
pushback buffer is not sufficient to store the contents of
buffer
.
Remarks
Pushes back an array of characters by copying it to the front of the pushback buffer. After this method returns, the next character to be read will have the value cbuf[0]
, the character after that will have the value cbuf[1]
, and so forth.
Java documentation for java.io.PushbackReader.unread(char[])
.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Applies to
Unread(Int32)
Pushes back a single character by copying it to the front of the pushback buffer.
[Android.Runtime.Register("unread", "(I)V", "GetUnread_IHandler")]
public virtual void Unread (int c);
[<Android.Runtime.Register("unread", "(I)V", "GetUnread_IHandler")>]
abstract member Unread : int -> unit
override this.Unread : int -> unit
Parameters
- c
- Int32
The int value representing a character to be pushed back
- Attributes
Exceptions
if this reader is closed or the internal pushback buffer is full.
Remarks
Pushes back a single character by copying it to the front of the pushback buffer. After this method returns, the next character to be read will have the value (char)c
.
Java documentation for java.io.PushbackReader.unread(int)
.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Applies to
Unread(Char[], Int32, Int32)
Pushes back a portion of an array of characters by copying it to the front of the pushback buffer.
[Android.Runtime.Register("unread", "([CII)V", "GetUnread_arrayCIIHandler")]
public virtual void Unread (char[]? cbuf, int off, int len);
[<Android.Runtime.Register("unread", "([CII)V", "GetUnread_arrayCIIHandler")>]
abstract member Unread : char[] * int * int -> unit
override this.Unread : char[] * int * int -> unit
Parameters
- cbuf
- Char[]
Character array
- off
- Int32
Offset of first character to push back
- len
- Int32
Number of characters to push back
- Attributes
Exceptions
if offset
or count
, or if
offset + count
is greater than the length of
buffer
.
if this reader is closed or the free space in the internal
pushback buffer is not sufficient to store the selected
contents of buffer
.
if buffer
is null
.
Remarks
Pushes back a portion of an array of characters by copying it to the front of the pushback buffer. After this method returns, the next character to be read will have the value cbuf[off]
, the character after that will have the value cbuf[off+1]
, and so forth.
Java documentation for java.io.PushbackReader.unread(char[], int, int)
.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.