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Can't find @Nullable inside javax.annotation.*
I want use @Nullable annotation to eliminate NullPointerExceptions .
I found some tutorials on the net, I noticed that this annotation comes from the package javax.annotation.Nullable ;
but when I import it a compilation error is generated: cannot find symbol
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Gradle proxy configuration
I need web access from Gradle through a proxy server to use the Gradle/Artifactory integration for Jenkins. To reduce possible causes for issues, I manually add the Artifactory plugin in build.gradle and run it from command line:
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Why can't I center with margin: 0 auto?
I have a #header div that is 100% width and within that div I have an unordered list. I have applied margin: 0 auto to the unordered list but it won't center it within the header div.
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float64 with pandas to_csv
I'm reading a CSV with float numbers like this:
2 Answers
2
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How to return an array from JNI to Java?
I am attempting to use the android NDK.
4 Answers
4
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How to make gradient background in android
I want to create gradient background where the gradient is in the top half and there's a solid color in the bottom half, like in this image below:
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How to share my Docker-Image without using the Docker-Hub?
I'm wondering where Docker's images are exactly stored to in my local host machine.
Can I share my Docker-Image without using the Docker-Hub or a Dockerfile but the 'real' Docker-Image? And what is exactly happening when I 'push' my Docker-Image to Docker-Hub?
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How do I set a column value to NULL in SQL Server Management Studio?
How do I clear the value from a cell and make it NULL?
6 Answers
6
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What is the Scala annotation to ensure a tail recursive function is optimized?
I think there is @tailrec annotation to ensure the compiler will optimize a tail recursive function. Do you just put it in front of the declaration? Does it also work if Scala is used in scripting mode (for instance using :load <file> under REPL)?
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Multiple queries executed in java in single statement
Hi I was wondering if it is possible to execute something like this using JDBC as it currently provides an exception even though it is possible in the MySQL query browser.
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