{"id":123,"date":"2012-04-24T12:01:38","date_gmt":"2012-04-24T10:01:38","guid":{"rendered":"https:\/\/herr-rau.de\/blogs\/inform\/?page_id=123"},"modified":"2012-06-09T10:13:19","modified_gmt":"2012-06-09T08:13:19","slug":"datentypen","status":"publish","type":"page","link":"https:\/\/herr-rau.de\/blogs\/inform\/?page_id=123","title":{"rendered":"Datentypen"},"content":{"rendered":"

Primitive Datentypen in Inform 7 sind number<\/code>, text <\/code>und truth state<\/code>. Sie entsprechen int, String und boolean. Au\u00dferdem kann jede Klasse als Datentyp herangezogen werden. (Arrays gibt es keiner, aber Listen und zweidimensionale Tabellen.)<\/p>\n\n

\u00c4hnlich wie bei Enum in Java kann man auch in Java eigene ennumerated values festlegen:<\/p>\n

\r\nColour is a kind of value. Colours are red, green and blue.\r\n<\/pre>\n
Danach kann man colour<\/code> wie einen anderen Datentyp verwenden.<\/p>\n
\r\nMax has a colour called favourite colour. The favourite colour of Max is blue.\r\n<\/pre>\n
Man kann auch abk\u00fcrzend den Bezeichner des neuen Datentypen gleichzeitig als Bezeichner des Attributs verwenden:<\/p>\n
\r\nMax has a colour. The colour is is blue.\r\n<\/pre>\n
Zul\u00e4ssige Werte f\u00fcr das Colour-Attribut sind red, green und blue, weil colour eben auch ein Datentyp ist, der nur diese Werte kennt.<\/p>\n\n
Referenzdatentypen werden durch “relations” gestaltet. Eingebaut sind unter anderem bereits die Relation to have, to contain, to support, to carry, to wear; man kann weitere definieren (is married to). <\/p>\n
[Klassendefinition]\r\nA bank manager is a kind of person.\r\nIt has a text called job description. [auch: He has\/She has\/They have]\r\nIt has a number called age.\r\nIt has a truth state called busy. Busy is usually true.\r\n[Meist eleganter: A bank manager can be busy or not busy.]\r\nIt has a person called lawyer. \r\n<\/pre>\n
In Java:<\/p>\n
class BankManager extends Person {\r\n String job_description;\r\n int age;\r\n boolean busy = true;\r\n Person lawyer;\r\n}\r\n<\/pre>\n
\r\n[Anlegen eines Objekts dazu]\r\nTheo is a bank manager in the bank. \r\nThe job description of Theo is "Big Man".\r\nThe age of Theo is 42.\r\nThe lawyer of Theo is a woman called Nathalie.\r\n<\/pre>\n
In Java:<\/p>\n
\r\nBankManager theo = new BankManager();\r\ntheo.setLocation(bank);\r\ntheo.setJobDescription(\"Big Man\");\r\ntheo.setAge(42);\r\ntheo.setLawyer(new Woman(\"Nathalie\"));\r\n<\/pre>\n
Benutzen kann man das dann so:<\/p>\n
Instead of attacking a bank manager:\r\n\tSay "My lawyer's name is [printed name of the lawyer of the noun]."\r\n<\/pre>\n\n
Operationen auf ganzen Zahlen:
\n+ oder plus
\n– oder minus
\n* oder multiplied by oder times
\n\/ oder divided by<\/p>\n
Au\u00dferdem gibt es modulo:
\nremainder after dividing a by b<\/code><\/p>\n
Runden:
\na to the nearest b<\/code>
\nz.B. 201 to the nearest 5 (=200), 10:27 AM to the nearest five minutes (= 10:25 AM)<\/p>\n\n
Listen gehen so:<\/p>\n