public class

ISO2022_CN

extends Charset
implements HistoricallyNamedCharset
java.lang.Object
   ↳ java.nio.charset.Charset
     ↳ sun.nio.cs.ext.ISO2022_CN

Summary

Public Constructors
ISO2022_CN()
Public Methods
boolean canEncode()
Tells whether or not this charset supports encoding.
boolean contains(Charset cs)
Tells whether or not this charset contains the given charset.
String historicalName()
CharsetDecoder newDecoder()
Constructs a new decoder for this charset.
CharsetEncoder newEncoder()
Constructs a new encoder for this charset.
[Expand]
Inherited Methods
From class java.nio.charset.Charset
From class java.lang.Object
From interface java.lang.Comparable
From interface sun.nio.cs.HistoricallyNamedCharset

Public Constructors

public ISO2022_CN ()

Public Methods

public boolean canEncode ()

Tells whether or not this charset supports encoding.

Nearly all charsets support encoding. The primary exceptions are special-purpose auto-detect charsets whose decoders can determine which of several possible encoding schemes is in use by examining the input byte sequence. Such charsets do not support encoding because there is no way to determine which encoding should be used on output. Implementations of such charsets should override this method to return false.

Returns
  • true if, and only if, this charset supports encoding

public boolean contains (Charset cs)

Tells whether or not this charset contains the given charset.

A charset C is said to contain a charset D if, and only if, every character representable in D is also representable in C. If this relationship holds then it is guaranteed that every string that can be encoded in D can also be encoded in C without performing any replacements.

That C contains D does not imply that each character representable in C by a particular byte sequence is represented in D by the same byte sequence, although sometimes this is the case.

Every charset contains itself.

This method computes an approximation of the containment relation: If it returns true then the given charset is known to be contained by this charset; if it returns false, however, then it is not necessarily the case that the given charset is not contained in this charset.

Returns
  • true if the given charset is contained in this charset

public String historicalName ()

public CharsetDecoder newDecoder ()

Constructs a new decoder for this charset.

Returns
  • A new decoder for this charset

public CharsetEncoder newEncoder ()

Constructs a new encoder for this charset.

Returns
  • A new encoder for this charset