public static String getString(String aKey, Object arg)
    {
        return getString(aKey,new Object[]{arg});
    }
public static String getString ( String aKey , Object arg ) { return getString ( aKey , new Object [ ] { arg } ) ; }
Returns the string specified by aKey from the errors.properties bundle.

@param aKey The key for the message pattern in the bundle.
@param arg The arg to use in the message format.