Java Programming

I checked my font.properties file and it says:

dialog.0=Arial,ANSI_CHARSET
dialog.1=WingDings,SYMBOL_CHARSET
dialog.2=Symbol,SYMBOL_CHARSET

fontcharset.dialog.0=sun.io.CharToByteCp1252
fontcharset.dialog.1=sun.awt.windows.CharToByteWingDings
fontcharset.dialog.2=sun.awt.CharToByteSymbol

but when i see if the charset for the Symbol font is available

public class cSet {
	static Charset cs;
	 public static void main(String argv[])
	 {
		 boolean bool;
		 bool = cs.isSupported("SYMBOL_CHARSET");
		 System.out.println(bool);
	}
}

But the program prints out false.

Any ideas why? My basic problem is finding a mapping from the symbols to unicode values. Now, if I type in an Omega sign, i get a ? mark,

Thanks