Converts Unicode into something that can be embedded in a java properties file : Unicode « Development « Java Tutorial






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import java.security.SecureRandom;
import java.util.Random;

public class StringUtils
{

  /**
   *  Converts a string from the Unicode representation into something that can be
   *  embedded in a java properties file.  All references outside the ASCII range
   *  are replaced with \\uXXXX.
   *
   *  @param s The string to convert
   *  @return the ASCII string
   */
  public static String native2Ascii(String s)
  {
      StringBuffer sb = new StringBuffer();
      for(int i = 0; i < s.length(); i++)
      {
          char aChar = s.charAt(i);
          if ((aChar < 0x0020) || (aChar > 0x007e))
          {
              sb.append('\\');
              sb.append('u');
              sb.append(toHex((aChar >> 12) & 0xF));
              sb.append(toHex((aChar >>  8) & 0xF));
              sb.append(toHex((aChar >>  4) & 0xF));
              sb.append(toHex( aChar        & 0xF));
          }
          else
          {
              sb.append(aChar);
          }
      }
      return sb.toString();
  }
  private static char toHex(int nibble)
  {
      final char[] hexDigit =
      {
          '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
      };
      return hexDigit[nibble & 0xF];
  }


}








6.16.Unicode
6.16.1.Using Unicode in String
6.16.2.Display special character using Unicode
6.16.3.Convert from Unicode to UTF-8
6.16.4.Convert from UTF-8 to Unicode
6.16.5.Convert string to UTF8 bytes
6.16.6.Converts Unicode into something that can be embedded in a java properties file
6.16.7.Converts the string to the unicode format
6.16.8.Return an UTF-8 encoded String
6.16.9.Return an UTF-8 encoded String by length
6.16.10.Return UTF-8 encoded byte[] representation of a String
6.16.11.Get UTF String Size
6.16.12.Return the number of bytes that hold an Unicode char.
6.16.13.Return the Unicode char which is coded in the bytes at position 0.
6.16.14.Return the Unicode char which is coded in the bytes at the given position.
6.16.15.Checks if the String contains only unicode digits or space
6.16.16.Checks if the String contains only unicode digits. A decimal point is not a unicode digit and returns false.
6.16.17.Checks if the String contains only unicode letters and space (' ').
6.16.18.Checks if the String contains only unicode letters or digits.
6.16.19.Checks if the String contains only unicode letters, digits or space (' ').
6.16.20.Checks if the String contains only unicode letters.
6.16.21.Count the number of bytes included in the given char[].
6.16.22.Count the number of bytes needed to return an Unicode char. This can be from 1 to 6.
6.16.23.Count the number of chars included in the given byte[].
6.16.24.Decodes values of attributes in the DN encoded in hex into a UTF-8 String.
6.16.25.Safe UTF: 64K serialized size