Problem in replacing with the unicode equivalent character ?

Question

Hello,
I have a situation wherein i must replace
m with \u3005
n with \u3006
o with \u3041
etc ...,
I get the codepoint value from the multibyte represenation .
But the problem is
I can not replace
String temp="ename";
temp.replace('m','\u3005');
I am not allowed to hard code the value 3005, rather i am suppose to get the code point value from the multibyte representation.
I have no problem in getting the code point value from the multibyte represenation.
After i get the code point value i must concatenate the codepoint value with "\u"
Currently i am following this implementation to do the replacement,
String rp=null,snd;
String tmp="ename";
String hh="";
for(int i=0;i<tmp.length();i++)
snd=getCodepoint(tmp.charAt(i));
if(snd!=null)
rp=replace(String.valueOf(tmp.charAt(i)),
String.valueOf(tmp.charAt(i)),"\\u"+snd);
hh=hh+rp;
else
hh=hh+String.valueOf(tmp.charAt(i));
//The replace method
public static String replace(String source, String pattern, String replace)
if (source!=null)
final int len = pattern.length();
StringBuffer sb = new StringBuffer();
int found = -1;
int start = 0;
while( (found = source.indexOf(pattern, start) ) != -1)
sb.append(source.substring(start, found));
sb.append(replace);
start = found + len;
sb.append(source.substring(start));
return sb.toString();
else return "";
Please tell me how to do the replacement
Because when i display after the replacement is done i get
e\u3006a\u3005e for the string "ename"
where as i should be getting special characters in place of 'm' and 'n' in the string
or i must atleast get e?a?e for the string "ename"
Please do offer some suggesstions in this regard
Your suggesstions would be very useful
NOTE:
I am not suppose to make use of the method replaceAll( ) to do the replacements
Thanks and regards
khurram

Answer 1

I am getting these errors
i am not able to understand why
i looked into the java2 complete reference text
ther is no method called isHexDigit( ) in it
pleasae do help
the errors are as follows
[systpe@Agni ~]$ javac C1.java
C1.java:9: cannot resolve symbol
symbol : method isHexDigit (char)
location: class java.lang.Character
if(!Character.isHexDigit(ch))
^
C1.java:11: cannot resolve symbol
symbol : method digitValue (char,int)
location: class java.lang.Character
v |= Character.digitValue(ch, 16);
^
C1.java:15: replace(char,char) in java.lang.String cannot be applied to (java.lang.String,j
ava.lang.String)
String subs = "ename".replace("m", String.valueOf(cv));
^
3 errors
Thanks & Regards
khurram