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JPA or JDBC, how are they different?
...l the usual things like INSERT, DELETE, run stored procedures, etc. It is one of the underlying technologies behind most Java database access (including JPA providers).
One of the issues with traditional JDBC apps is that you can often have some crappy code where lots of mapping between data sets ...
Eclipse - java.lang.ClassNotFoundException
... project build-path and enable specific output folders for each folder. Go one by one though each source-folder of your project and set the output folder that maven would use.
For example, your web project's src/main/java should have target/classes under the web project, test classes should have t...
How to force garbage collection in Java?
...bs:
/**
* This method guarantees that garbage collection is
* done unlike <code>{@link System#gc()}</code>
*/
public static void gc() {
Object obj = new Object();
WeakReference ref = new WeakReference<Object>(obj);
obj = null;
while(ref.get() ...
Running MSBuild fails to read SDKToolsPath
...above except installing the 8.0 SDK, and was unable to compile until I (as one batch step) included my updates to all the 4.0\11.0 nodes.
– BlueMonkMN
Aug 6 '13 at 19:05
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How to check if all of the following items are in a list?
I found, that there is related question, about how to find if at least one item exists in a list:
How to check if one of the following items is in a list?
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What is the difference between :focus and :active?
...s when they contradict each other e.g. color:red and color:blue (then last one wins).
– Pacerier
May 4 '14 at 14:18
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std::vector versus std::array in C++
...difference between a std::vector and an std::array in C++? When should one be preferred over another? What are the pros and cons of each? All my textbook does is list how they are the same.
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Why would you use Expression rather than Func?
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@bertl Delegate is what CPU sees (executable code of one architecture), Expression is what compiler sees (merely another format of source code, but still source code).
– codewarrior
May 5 '17 at 9:22
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ImageView - have height match width?
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Im my case, solutions such as this one did not work, this one did!
– Gooey
Jul 13 '16 at 20:58
5
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What is a “feature flag”?
...gh.
There are heaps of other reasons you would want to use this though - one of the main being enabling Continuous Delivery: pushing things into production/live yet having the feature disabled/toggled until it's completed. We often use what we call a 'dev cookie' to show uncompleted features to ju...