public static String convertToUnicode(String str) {
    	StringBuffer ostr = new StringBuffer();
    	for(int i=0; i<str.length(); i++)
    	{
    		char ch = str.charAt(i);
    		if ((ch >= 0x0020) && (ch <= 0x007e))
    		{
    			ostr.append(ch);
    		} else
    		{
    			ostr.append("\\u");
    			String hex = Integer.toHexString(str.charAt(i) & 0xFFFF);
    			for(int j=0; j<4-hex.length(); j++)
    				ostr.append("0");
    			ostr.append(hex.toLowerCase());
    		}
    	}
    	return (new String(ostr));
     } 

		 static final String ConvertFromUnicode(final String in) { 
			 String working = in; 
			 int index; 
			 index = working.indexOf("\\u"); 
			 while(index > -1) { 
				 int length = working.length(); 
				 if(index > (length-6))
					 break; 
				 int numStart = index + 2; 
				 int numFinish = numStart + 4; 
				 String substring = working.substring(numStart, numFinish); 
				 int number = Integer.parseInt(substring,16); 
				 String stringStart = working.substring(0, index); 
				 String stringEnd = working.substring(numFinish); 
				 working = stringStart + ((char)number) + stringEnd; 
				 index = working.indexOf("\\u"); 
				 } 
			 return working; 
			 }