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How do I compare strings in Java?

I've been using the == operator in my program to compare all my strings so far. However, I ran into a bug, changed one of them into .equals() instead, and it fixed the bug. ...
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MySQL INNER JOIN select only one row from second table

...ltiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help ...
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Transactions in REST?

...nsider a RESTful shopping basket scenario. The shopping basket is conceptually your transaction wrapper. In the same way that you can add multiple items to a shopping basket and then submit that basket to process the order, you can add Bob's account entry to the transaction wrapper and then Bill'...
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Get String in YYYYMMDD format from JS date object?

... won't need the rightNow variable around, you can wrap new Date and get it all back in a single line: (new Date()).toISOString().slice(0,10).replace(/-/g,"") – BigBlueHat Sep 26 '13 at 17:43 ...
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Read-only list or unmodifiable list in .NET 4.0

...that's not a List, it's a Collection. So if you use it, you need to modify all your code to use Collection instead of List. – Roman Zabicki May 25 '16 at 13:50 ...
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C++ Const Usage Explanation

...* const& means a reference to a constant pointer to a constant int. Usually pointers are not passed by reference; const int* & makes more sense because it would mean that the pointer could be changed during the method call, which would be the only reason I can see to pass a pointer by refere...
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What is VanillaJS?

...nto the Public Domain // Your code goes here: As you can see, it's not really a framework or a library. It's just a running gag for framework-loving bosses or people who think you NEED to use a JS framework. It means you just use whatever your (for you own sake: non-legacy) browser gives you (usin...
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What is the best way to implement “remember me” for a website? [closed]

...match, a theft is assumed. The user receives a strongly worded warning and all of the user's remembered sessions are deleted. If the username and series are not present, the login cookie is ignored. This approach provides defense-in-depth. If someone manages to leak the database table, it does no...
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What's the difference between returning void and returning a Task?

... see why returning a Task<MyType> is useful to return data to the caller when the async operation completes, but the functions that I've seen that have a return type of Task never return any data. Why not return void ? ...
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How to store custom objects in NSUserDefaults

... class, and I need to them to last between sessions. Before I was putting all my information in NSUserDefaults , but this isn't working. ...