Switch: constant expression required

Question

Hi,
i initialize some integer constants with the hash code of some strings. However, i cannot use these constants in "case"s of "switch". How can i deal with this?
Here's the code:
    public void parseHeader()
        char[] headerChars=header_.toCharArray(); //the array representation of the XML header tag
        StringBuffer sBuffer=new StringBuffer();  //the String
        char c=' ';
        int fieldCode=0;
        for (int i=0; i<headerChars.length; i++)
            c=(char)headerChars;
if (c=='\n')
switch(fieldCode)
case ACCEPT:
sAccept_=new String(sBuffer);
break;
case ACCEPT_CHARSET:
sAcceptCharset_=new String(sBuffer);
break;
case ACCEPT_ENCODING:
sAcceptEncoding_=new String(sBuffer);
break;
case ACCEPT_LANGUAGE:
sAcceptLanguage_=new String(sBuffer);
break;
case AUTHORIZATION:
sAuthorization_=new String(sBuffer);
break;
case CACHE_CONTROL:
sCacheControl_=new String(sBuffer);
break;
case CLIENT_IP:
sClientIp_=new String(sBuffer);
break;
case INT_CONNECTION:
sConnection_=new String(sBuffer);
break;
case CONTENT_LANGUAGE:
sContentLanguage_=new String(sBuffer);
break;
case CONTENT_LOCATION:
sContentLocation_=new String(sBuffer);
break;
case CONTENT_MD5:
sContentMD5_=new String(sBuffer);
break;
case WARNING:
sWarning_=new String(sBuffer);
break;
case X_FORWARDED_FOR:
sXForwardedFor_=new String(sBuffer);
break;
case X_SERIAL_NUMBER:
sXSerialNumber_=new String(sBuffer);
break;
default:
System.err.println("Header field with hash code: "+fieldCode+" detected");
else if (c==':')
fieldCode=new String(sBuffer).hashCode();
sBuffer=new StringBuffer();
else
sBuffer.append(c);
private static final int ACCEPT= "Accept".hashCode();
private static final int ACCEPT_CHARSET="Accept-Charset".hashCode();
private static final int ACCEPT_ENCODING="Accept-Encoding".hashCode();
private static final int ACCEPT_LANGUAGE="Accept-Language".hashCode();
private static final int AUTHORIZATION="Authorization".hashCode();
private static final int CACHE_CONTROL="Cache-Control".hashCode();
private static final int CLIENT_IP="Client-ip".hashCode();
private static final int CONNECTION="connection".hashCode();
private static final int CONTENT_LANGUAGE="Content-Language".hashCode();
private static final int CONTENT_LOCATION="Content-Location".hashCode();
private static final int CONTENT_MD5="Content-MD5".hashCode();
private static final int WARNING="Warning".hashCode();
private static final int X_FORWARDED_FOR="X-Forwarded-For".hashCode();
private static final int X_SERIAL_NUMBER="X-Serial-Number".hashCode();
Message was edited by:
uig

Answer 1

the labels in a switch-case statement have to be compile-time constant. Anything that involves calling a method is not.
you could make an enumerated type
http://java.sun.com/j2se/1.5.0/docs/guide/language/enums.html