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Java 8: performance of Streams vs Collections
... the middle of the list using iterator.
Stop writing benchmarking code by hand, use JMH.
Proper benchmarks:
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
@OperationsPerInvocation(StreamVsVanilla.N)
public class StreamVsVanilla {
public static final int N = 10000;
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How can I avoid Java code in JSP files, using JSP 2?
I'm new to Java EE and I know that something like the following three lines
31 Answers
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load scripts asynchronously
I am using several plugins, custom widgets and some other libraries from JQuery. as a result I have several .js and .css files. I need to create a loader for my site because it takes some time to load. it will be nice if I can display the loader before importing all the:
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How do you delete an ActiveRecord object?
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It's destroy and destroy_all methods, like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destro...
scp or sftp copy multiple files with single command
...te server in different directories.
For example, I want to run these 4 commands at once.
15 Answers
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Can we write our own iterator in Java?
If I have a list containing [alice, bob, abigail, charlie] and I want to write an iterator such that it iterates over elements that begin with 'a', can I write my own ? How can I do that ?
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Scope of sessionStorage and localStorage
I read some documentation on sessionStorage and localStorage, but I don't understand what the scope is: the domain, a specific page?
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SQL Server insert if not exists best practice
I have a Competitions results table which holds team member's names and their ranking on one hand.
8 Answers
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android:drawableLeft margin and/or padding
...ssible to set the margin or padding for the image which we added with the android:drawableLeft ?
18 Answers
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Reset push notification settings for app
...mentation. The current solution seems to be resetting the device's content and settings.
Update: The tech note has been updated with new steps that work correctly as of iOS 7.
Delete your app from the device.
Turn the device off completely and turn it back on.
Go to Settings > General...