com.sun.cldc.i18n
Class Helper

java.lang.Object
  com.sun.cldc.i18n.Helper

public class Helper
extends Object

This class provides general helper functions for the J2ME environment.

No application code should reference this class directly.

Constructor Summary

Helper()

Method Summary

static char[]	byteToCharArray(byte[] buffer, int offset, int length) Convert a byte array to a char array
static char[]	byteToCharArray(byte[] buffer, int offset, int length, String enc) Convert a byte array to a char array
static byte[]	charToByteArray(char[] buffer, int offset, int length) Convert a char array to a byte array
static byte[]	charToByteArray(char[] buffer, int offset, int length, String enc) Convert a char array to a byte array
static Reader	getStreamReader(InputStream is) Get a reader for an InputStream
static Reader	getStreamReader(InputStream is, String name) Get a reader for an InputStream
static Writer	getStreamWriter(OutputStream os) Get a writer for an OutputStream
static Writer	getStreamWriter(OutputStream os, String name) Get a writer for an OutputStream

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Helper

public Helper()

Method Detail

getStreamReader

public static Reader getStreamReader(InputStream is)

Get a reader for an InputStream

Parameters:

is - The input stream the reader is for

Returns:

A new reader for the stream

getStreamReader

public static Reader getStreamReader(InputStream is,
                                     String name)
                              throws UnsupportedEncodingException

Get a reader for an InputStream

Parameters:

is - The input stream the reader is for

name - The name of the decoder

Returns:

A new reader for the stream

Throws:

UnsupportedEncodingException - If the encoding is not known

getStreamWriter

public static Writer getStreamWriter(OutputStream os)

Get a writer for an OutputStream

Parameters:

os - The output stream the reader is for

Returns:

A new writer for the stream

getStreamWriter

public static Writer getStreamWriter(OutputStream os,
                                     String name)
                              throws UnsupportedEncodingException

Get a writer for an OutputStream

Parameters:

os - The output stream the reader is for

name - The name of the decoder

Returns:

A new writer for the stream

Throws:

UnsupportedEncodingException - If the encoding is not known

byteToCharArray

public static char[] byteToCharArray(byte[] buffer,
                                     int offset,
                                     int length)

Convert a byte array to a char array

Parameters:

buffer - The byte array buffer

offset - The offset

length - The length

Returns:

A new char array

charToByteArray

public static byte[] charToByteArray(char[] buffer,
                                     int offset,
                                     int length)

Convert a char array to a byte array

Parameters:

buffer - The char array buffer

offset - The offset

length - The length

Returns:

A new byte array

byteToCharArray

public static char[] byteToCharArray(byte[] buffer,
                                     int offset,
                                     int length,
                                     String enc)
                              throws UnsupportedEncodingException

Convert a byte array to a char array

Parameters:

buffer - The byte array buffer

offset - The offset

length - The length

enc - The character encoding

Returns:

A new char array

Throws:

UnsupportedEncodingException - If the encoding is not known

charToByteArray

public static byte[] charToByteArray(char[] buffer,
                                     int offset,
                                     int length,
                                     String enc)
                              throws UnsupportedEncodingException

Convert a char array to a byte array

Parameters:

buffer - The char array buffer

offset - The offset

length - The length

enc - The character encoding

Returns:

A new byte array

Throws:

UnsupportedEncodingException - If the encoding is not known