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GSON throwing “Expected BEGIN_OBJECT but was BEGIN_ARRAY”?

...u don't. You have an array of objects of your type. You can't just try and cast the result like that and expect it to magically work ;) The User guide for Gson Explains how to deal with this: https://github.com/google/gson/blob/master/UserGuide.md This will work: ChannelSearchEnum[] enums = gson...
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SQL WHERE.. IN clause multiple columns

...te that if your columns are numeric, some SQL dialects will require you to cast them to strings first. I believe SQL server will do this automatically. To wrap things up: As usual there are many ways to do this in SQL, using safe choices will avoid suprises and save you time and headaces in the l...
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What is a serialVersionUID and why should I use it?

... read Unnecessary code: Redundant null check Unnecessary code: Unnecessary cast or 'instanceof' and many more. share | improve this answer | follow | ...
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How to create id with AUTO_INCREMENT on Oracle?

...r replace trigger FOO_trg before insert on FOO for each row begin select cast(sys_guid() as varchar2(32)) into :new.x from dual; -- string version -- select sys_guid() into :new.x from dual; -- raw version end; / update: Oracle 12c introduces these two variants that don't...
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What is the difference between gravity and layout_gravity in Android?

...y; ... Button button = (Button) findViewById(R.id.MyButtonId); // need to cast to LinearLayout.LayoutParams to access the gravity field LayoutParams params = (LayoutParams)button.getLayoutParams(); params.gravity = Gravity.BOTTOM; button.setLayoutParams(params); For horizontal LinearLayout conta...
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Why does an overridden function in the derived class hide other overloads of the base class?

... interface. So maybe d->foo() won't get you the "Is-a Base", but static_cast<Base*>(d)->foo() will, including dynamic dispatch. – Kerrek SB Jan 9 '14 at 13:36 12 ...
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What is a “slug” in Django?

...If I may provide some historical context : The term "slug" has to do with casting metal—lead, in this case—out of which the press fonts were made. Every paper then had its fonts factory regularly re-melted and recast in fresh molds, since after many prints they became worn out. Apprentices like...
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Just what is an IntPtr exactly?

...sic pointer arithmetic. In order to dereference an IntPtr, you can either cast it to a true pointer (an operation which can only be performed in "unsafe" contexts) or you can pass it to a helper routine such as those provided by the InteropServices.Marshal class. Using the Marshal class gives the i...
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Any reason to clean up unused imports in Java, other than reducing clutter?

...hey don't get any warning about it until somewhere down the line there's a casting problem or invocation problem. This is, by the way, not an unrealistic scenario. Every time you had Eclipse ask you which specific version of X you wanted to import, and you picked one from among many packages, is a ...
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Is there a wikipedia API just for retrieve content summary?

... @LaurynasG You can cast the object to an array and then grab it like this: $extract = current((array)$json_query->query->pages)->extract – MarcGuay Mar 15 '16 at 21:57 ...