topic Re: Help with basic OO question in Application Development and Automation Discussions https://community.sap.com/t5/application-development-and-automation-discussions/help-with-basic-oo-question/m-p/853828#M46750 <HTML><HEAD></HEAD><BODY><P>oh right that's it, casting... </P><P></P><P>That something to do with what is inherited from superclasses...</P><P></P><P>Thansk for the memory jog!</P></BODY></HTML> Thu, 31 Mar 2005 13:59:39 GMT Former Member 2005-03-31T13:59:39Z Help with basic OO question https://community.sap.com/t5/application-development-and-automation-discussions/help-with-basic-oo-question/m-p/853826#M46748 <HTML><HEAD></HEAD><BODY><P>Right!</P><P></P><P>I know that '-&gt;' is for calling a method from a class.</P><P>I also know that '=&gt;' is used calling a static method (whatever that is?).</P><P></P><P>But what on earth is '?=' used for???</P><P></P><P>Anyone got any ideas...</P><P></P><P>Thanking you kindly</P></BODY></HTML> Thu, 31 Mar 2005 13:26:47 GMT https://community.sap.com/t5/application-development-and-automation-discussions/help-with-basic-oo-question/m-p/853826#M46748 Former Member 2005-03-31T13:26:47Z Re: Help with basic OO question https://community.sap.com/t5/application-development-and-automation-discussions/help-with-basic-oo-question/m-p/853827#M46749 <HTML><HEAD></HEAD><BODY><P>?= is use for casting. Narrowing and widening. </P><P></P><P>You will usually see this inside of a catch/endcatch.</P><P></P><PRE><CODE> catch system-exceptions move_cast_error = 1. r_checking ?= r_account. call method r_account-&gt;show_balance. endcatch.</CODE></PRE><P></P><P></P><P>Check out this post.</P><P></P><P><A class="jive_macro jive_macro_message" href="https://community.sap.com/" __jive_macro_name="message" modifiedtitle="true" __default_attr="300802"></A></P><P></P><P>Regards,</P><P>Rich Heilman</P></BODY></HTML> Thu, 31 Mar 2005 13:31:52 GMT https://community.sap.com/t5/application-development-and-automation-discussions/help-with-basic-oo-question/m-p/853827#M46749 RichHeilman 2005-03-31T13:31:52Z Re: Help with basic OO question https://community.sap.com/t5/application-development-and-automation-discussions/help-with-basic-oo-question/m-p/853828#M46750 <HTML><HEAD></HEAD><BODY><P>oh right that's it, casting... </P><P></P><P>That something to do with what is inherited from superclasses...</P><P></P><P>Thansk for the memory jog!</P></BODY></HTML> Thu, 31 Mar 2005 13:59:39 GMT https://community.sap.com/t5/application-development-and-automation-discussions/help-with-basic-oo-question/m-p/853828#M46750 Former Member 2005-03-31T13:59:39Z