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How to define @Value as optional
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If you are using Java 8, you can take advantage of its java.util.Optional class.
You just have to declare the variable following this way:
@Value("${myValue:#{null}}")
private Optional<String> value;
Then, you can check whether the ...
Using Emacs to recursively find and replace in text files not already open
... how do I try to found string "Collectible" in all file with extension java and hxx using findr.el?
– swdev
Jan 25 '11 at 4:57
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Do I need to disable NSLog before release Application?
...vels to limit the performance hit to almost zero! (see cocoa lumberjack or java's log4j
– Daij-Djan
Jan 30 '13 at 16:57
2
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Spring MVC @PathVariable getting truncated
... In Spring 4.2 this is slightly easier to configure. We use Java config classes and extend the WebMvcConfigurationSupport which provides a simple hook:public void configurePathMatch(PathMatchConfigurer configurer) - just override that and set up the path matching how you like.
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Change Author template in Android Studio
...n section, select Includes.
5)Select File Header item that applies to the Java files.
6)You will find an editor section that allow you to edit it for the required pattern. Use the description section below to understand the different parameters that can be used.
/**
* Created by ${USER} on ${DAY}...
What is Erlang written in?
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I can say that Erlang was initially written in C/C++ as
I can't say that Java is written in java.... but It's framework and
Some libraries.
About Erlang, As Its is preferred programming language and suitable
for Telecom system... in order to maintain swiftness (e.g: in chat-bots)
I know that its ...
How to convert a clojure keyword into a string?
...orToString) ;;Calling ConvertVectorToString Function
Output will be:
1234
java.lang.string
10
java.lang.string
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Is Redis just a cache?
...ecent questions to display on the home page. If you were writing a .NET or Java program, you would store the questions in a List. Turns out, that is the best way to store this in Redis as well.
Every time someone asks a question, we add its id to the list.
$ lpush questions question:1
(integer) ...
error upon assigning Layout: BoxLayout can't be shared
I have this Java JFrame class, in which I want to use a boxlayout, but I get an error saying java.awt.AWTError: BoxLayout can't be shared . I've seen others with this problem, but they solved it by creating the boxlayout on the contentpane, but that is what I'm doing here. Here's my code:
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Getter and Setter?
... negative performance impact.
They require writing more code.
PHP is not Java, C++, or C#. PHP is different and plays with different roles.
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