APNS Push not received -
i trying implement push notification in apple, , when send push sent locally machine, when send server not received on device. issue ?
port not opened server problem asked them open port , worked
Prolog - Listing -
i have problem trying work out code here. let's have these codes: university('university of cambridge', 1, 'united kingdom', 90.3, 92.8, 89.4), university('university of oxford', 2, 'united kingdom', 88.9, 94.8, 88.0). how list out names of universities only? tried doing listing. , listing(university). list out or rules. trying names like: university of cambridge university of oxford this gives 1 name: ?: university(x,_,_,_,_). you can query more ; or space to print of them, use fail driven loop: ?: university(x,_,_,_,_), write(x), nl, fail; true.
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