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How do you get the “object reference” of an object in java when toString() and hashCode() have been

...if it is a unique object in memory that isn't a good way to do it. System.identityHashCode does the following: Returns the same hash code for the given object as would be returned by the default method hashCode(), whether or not the given object's class overrides hashCode(). The hash code for t...
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Mongod complains that there is no /data/db folder

...sing my new mac for the first time today. I am following the get started guide on the mongodb.org up until the step where one creates the /data/db directory. btw, I used the homebrew route. ...
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How to stop EditText from gaining focus at Activity startup in Android

I have an Activity in Android, with two elements: 52 Answers 52 ...
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Illegal string offset Warning PHP

...uses illegal string offset error You can see this in action here: http://ideone.com/fMhmkR For those who come to this question trying to translate the vagueness of the error into something to do about it, as I was. share ...
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How to validate an OAuth 2.0 access token for a resource server?

...protected resource with an OAuth 2.0 access token, how does this server validate the token? The OAuth 2.0 refresh token protocol? ...
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When a 'blur' event occurs, how can I find out which element focus went *to*?

...ev.explicitOriginalTarget||document.activeElement; document.getElementById("focused").value = target ? target.id||target.tagName||target : ''; } ... <button id="btn1" onblur="showBlur(event)">Button 1</button> <button id="btn2" onblur="showBlur(event)">Button 2</butt...
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ImageView - have height match width?

I have an imageview. I want its width to be fill_parent. I want its height to be whatever the width ends up being. For example: ...
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Why doesn't RecyclerView have onItemClickListener()?

...Subject<String> onClickSubject = PublishSubject.create(); @Override public void onBindViewHolder(final ViewHolder holder, int position) { final String element = mDataset[position]; holder.itemView.setOnClickListener(new View.OnClickListener() { @Override ...
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How do I use Linq to obtain a unique list of properties from a list of objects?

I'm trying to use Linq to return a list of ids given a list of objects where the id is a property. I'd like to be able to do this without looping through each object and pulling out the unique ids that I find. ...
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How do you overcome the HTML form nesting limitation?

...nt data to the server (possibly through a second form on the page with the ID needed to process the thing as a hidden input, or refresh the page location with the data you need passed as a GET request, or do an Ajax post to the server, or...). This way the people without Javascript are able to use ...