Ow to convert an Unicode code to the corresponding character

Question

hi,I'm encountering a problem.I have an Unicode code,for example,'0041' which is corresponding to the character 'A'.I can get this character by using escape character "\u0041".However ,if I assemble it , i.e. "\\u"+"0041",I can only get "\u0041".How can i resolve this question?thanks in advance.in addition which file in java source code realizes the function of escape character
Edited by: wl1205626 on Oct 17, 2007 1:51 AM

Answer 1

My dear friend this code can change "u0061u0062u0063u0061" in "\u0061\u0062\u0063\u0061" unicode formate and second code can change a uniCode data in char
import java.util.*;
class conv
public static void main(String[] args)
{String s1=new String("u0061u0062u0063u0061");
StringBuffer sb=new StringBuffer(s1);
int l=sb.length();
int z=0;
for(int i=0;i<l;i++)
char k=sb.charAt(i);
if(k=='u')
z=z+1;
sb.setCharAt(i,'L');
sb.insert(i+1,"L");
sb.setCharAt(i,'
int a=sb.length();
for(int i=0;i<a;i++)
char k=sb.charAt(i);
if(k=='L')
sb.setCharAt(i,'u');
String val=new String(sb);
System.out.println(val);
String s4= new String(val);
System.out.println(s4);
Second Programe for change Unicode to Char Conversion
public class Test
     public int ss1()
     int a=10,b=9;
     int c=a*b;
     return c;
public String loadConvert(String theString) {
char aChar;
int len = theString.length();
StringBuffer outBuffer = new StringBuffer(len);
for (int x=0; x<len; ) {
aChar = theString.charAt(x++);
if (aChar == '\\') {
aChar = theString.charAt(x++);
if (aChar == 'u') {
// Read the xxxx
int value=0;
for (int i=0; i<4; i++) {
aChar = theString.charAt(x++);
switch (aChar) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
value = (value << 4) + aChar - '0';
break;
case 'a': case 'b': case 'c':
case 'd': case 'e': case 'f':
value = (value << 4) + 10 + aChar - 'a';
break;
case 'A': case 'B': case 'C':
case 'D': case 'E': case 'F':
value = (value << 4) + 10 + aChar - 'A';
break;
default:
throw new IllegalArgumentException(
"Malformed \\uxxxx encoding.");
outBuffer.append((char)value);
} else {
if (aChar == 't') aChar = '\t';
else if (aChar == 'r') aChar = '\r';
else if (aChar == 'n') aChar = '\n';
else if (aChar == 'f') aChar = '\f';
outBuffer.append(aChar);
} else
outBuffer.append(aChar);
return outBuffer.toString();
}