Java Tutorial/File/Encode Decode

ISO- Encode Decode

   <source lang="java">

import java.nio.ByteBuffer; import java.nio.charset.Charset; public class MainClass {

 public static void print(ByteBuffer bb) {
   while (bb.hasRemaining())
     System.out.print(bb.get() + " ");
   System.out.println();
   bb.rewind();
 }
 public static void main(String[] args) {
   ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, (byte) "a" });
   System.out.println("Initial Byte Buffer");
   print(bb);
   Charset csets = Charset.forName("ISO-8859-1");
   System.out.println(csets.name() + ":");
   print(csets.encode(bb.asCharBuffer()));
   csets.decode(bb);
   bb.rewind();
 }

} /*

    */</source>
   
  
 
  

Initial Byte Buffer
0 0 0 0 0 0 0 97 
ISO-8859-1:
0 0 0 97

US-ASCII: Encode Decode

   <source lang="java">

import java.nio.ByteBuffer; import java.nio.charset.Charset; public class MainClass {

 public static void print(ByteBuffer bb) {
   while (bb.hasRemaining())
     System.out.print(bb.get() + " ");
   System.out.println();
   bb.rewind();
 }
 public static void main(String[] args) {
   ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, (byte) "a" });
   System.out.println("Initial Byte Buffer");
   print(bb);
   Charset csets = Charset.forName("US-ASCII");
   System.out.println(csets.name() + ":");
   print(csets.encode(bb.asCharBuffer()));
   csets.decode(bb);
   bb.rewind();
 }

} /*

    */</source>
   
  
 
  

Initial Byte Buffer
0 0 0 0 0 0 0 97 
US-ASCII:
0 0 0 97

UTF-16BE: Encode Decode

   <source lang="java">

import java.nio.ByteBuffer; import java.nio.charset.Charset; public class MainClass {

 public static void print(ByteBuffer bb) {
   while (bb.hasRemaining())
     System.out.print(bb.get() + " ");
   System.out.println();
   bb.rewind();
 }
 public static void main(String[] args) {
   ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, (byte) "a" });
   System.out.println("Initial Byte Buffer");
   print(bb);
   Charset csets = Charset.forName("UTF-16BE");
   System.out.println(csets.name() + ":");
   print(csets.encode(bb.asCharBuffer()));
   csets.decode(bb);
   bb.rewind();
 }

} /*

  */</source>
   
  
 
  

Initial Byte Buffer
0 0 0 0 0 0 0 97 
UTF-16BE:
0 0 0 0 0 0 0 97

UTF-16LE: Encode Decode

   <source lang="java">

import java.nio.ByteBuffer; import java.nio.charset.Charset; public class MainClass {

 public static void print(ByteBuffer bb) {
   while (bb.hasRemaining())
     System.out.print(bb.get() + " ");
   System.out.println();
   bb.rewind();
 }
 public static void main(String[] args) {
   ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, (byte) "a" });
   System.out.println("Initial Byte Buffer");
   print(bb);
   Charset csets = Charset.forName("UTF-16LE");
   System.out.println(csets.name() + ":");
   print(csets.encode(bb.asCharBuffer()));
   csets.decode(bb);
   bb.rewind();
 }

} /*

 */</source>
   
  
 
  

Initial Byte Buffer
0 0 0 0 0 0 0 97 
UTF-16LE:
0 0 0 0 0 0 97 0

UTF-8: Encode Decode

   <source lang="java">

import java.nio.ByteBuffer; import java.nio.charset.Charset; public class MainClass {

 public static void print(ByteBuffer bb) {
   while (bb.hasRemaining())
     System.out.print(bb.get() + " ");
   System.out.println();
   bb.rewind();
 }
 public static void main(String[] args) {
   ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, (byte) "a" });
   System.out.println("Initial Byte Buffer");
   print(bb);
   Charset csets = Charset.forName("UTF-8");
   System.out.println(csets.name() + ":");
   print(csets.encode(bb.asCharBuffer()));
   csets.decode(bb);
   bb.rewind();
 }

} /*

   */</source>
   
  
 
  

Initial Byte Buffer
0 0 0 0 0 0 0 97 
UTF-8:
0 0 0 97