I try running a map reduce on some data on a cluster and get the following output. This is my reducer From what I understand the problem is that hadoop treats lastCK and key as the same object and this condition will always be true This is my CompositeKey class I tried changing setters to something along this lines where
Get the percentage of a value between two values
I have a minimum value and a maximum value (The values can change). I also have a value that is in between of these two values. Now I need to get the percentage of the currentValue between 0% and 100%. Is this even possible? Thank you for your help! Answer I think what you want to have is this calculation:
Why are most eclipse collections types Serializable?
I’m looking for design rationale here. I can understand making collection classes Serializable as a matter of course, although JCF doesn’t do that. Nevertheless, the Procedure, IntProcedure, etc. interfaces in particular are prime candidates for not being Serializable since they will often be anonymous anyway. Making those interfaces Serializable goes against Josh Bloch’s advice that interfaces should rarely extend Serializable[1].
RelativeLayout dosen’t get OnClick Events because of the DrawerLayout
If I set the order as seen in the picture –> Image The DrawerLayout is drawn under the content_main And the DrawerLayout dosen’t get OnClickEvents If I set The Order: first content_main then drawer_layout The DrawerLayout is drawn over the content_main but the content_main doesn’t get OnClick Events Here my activity_main.xml The Problem is only one of the layouts get
How to create config properties for tinylog at runtime with User preferences
I would like the user to be able to choose where the error logs in my application are sent to. I am using tinylog at the moment. I have used their example code to configure where errors are written to (the user preference is chosen via a Swing fileChooser). Their example is: which I have changed to: However I get
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I have a repeating process that: gets some data from the database builds some objects in memory, adding to a Collection writes the data from the Collection to a file All of the objects/Collections go out of scope or are set to null after each iteration. (The Collection is reused for each iteration.) Using Java VisualVM, I see a graph
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Go easy please, I’m rather new to the whole web development thing and I’m a little perplexed. I have the Spark framework installed from Maven, which has Jetty as its underlying web/application server, correct? Jetty is embedded in the Spark jar so I can’t/shouldn’t mess with it. Is that correct so far? I read that Spark’s embedded Jetty should support
Length of Array returning wrong number? [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 6 years ago. Improve this question
How to request Location Permission at runtime
In the manifest file I added permissions coarse and fine, and when I run on device with Android 6, nothing happens! I try everything but no way to get location updates… What am I doing wrong? Answer You need to actually request the Location permission at runtime (notice the comments in your code stating this). Updated with Kotlin and background
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When I import regularly it works as expected: However, if I change an import to static, IDEA cannot resolve it: Gradle builds the project successfully. It seems to be a problem with IDEA but I can’t find if it is a known problem. I tried cleaning, invalidate caches etc. Anything else I can do? Im using IntelliJ IDEA community 2016.2.4