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Why do we usually use || over |? What is the difference?
...nd && forms, rather than the | and & forms of these operators, Java will not bother to evaluate the right-hand operand alone.
It's a matter of if you want to short-circuit the evaluation or not -- most of the time you want to.
A good way to illustrate the benefits of short-circuiting w...
How to implement a queue with three stacks?
...m.sml) does not use this property of lists, as I have re-implemented it in Java using java.util.Stack objects. The only place where this feature is used is an optimization which allows immutable stacks to be "duplicated" in constant time, which base Java stacks cannot do (but which can be implemente...
Eclipse syntax highlighting preferences save and restore
...spend some time customizing the colors for syntax highlighting in Eclipse (Java, JSP, HTML, CSS, etc.) but whenever I try to export these settings via File|Export|General|Preferences and reimport them, the settings never completely get imported back. Some colors are restored and others are left unch...
What is the difference between JAX-RS and JAX-WS?
...n you use.
Can JAX-RS access a web service that is not running on the Java platform, and vice versa?
2) I can't think of any reason it wouldn't be able to.
What does it mean by "REST is particularly useful for limited-profile devices, such as PDAs and mobile phones"?
3) REST based archi...
Running Windows batch file commands asynchronously
...o.exe.
For a trivial example, if you wanted to print out the versions of java/groovy/grails/gradle, you could do this in a batch file:
@start /b cmd /c java -version
@start /b cmd /c gradle -version
@start /b cmd /c groovy -version
@start /b cmd /c grails -version
If you have something like Pr...
Setting up maven dependency for SQL Server
...
You can download the jar here: java2s.com/Code/Jar/s/Downloadsqljdbc420jar.htm
– Ismail Yavuz
Jul 28 '15 at 14:37
...
Best practice to mark deprecated code in Ruby?
...cated, so the people using it can easily check their code and catch up. In Java you set @Deprecated and everybody knows what this means.
...
Difference between maven scope compile and provided for JAR packaging
...endency at runtime. For example, when
building a web application for the Java Enterprise Edition, you would
set the dependency on the Servlet API and related Java EE APIs to
scope provided because the web container provides those classes. This
scope is only available on the compilation and t...
What components are MVC in JSF MVC framework?
... tree
V - Rendered HTML output
C - Client (webbrowser)
In the yet smaller JavaScript picture, the client V is in turn dividable as below:
M - HTML DOM tree
V - Visual presentation
C - Event listener functions (enduser interaction and Ajax)
So it's basically a M(M(M(MVC)C)C)C ;)
Note that some st...
Rename package in Android Studio
... First create a new package with the desired name by right clicking on the Java folder → New → Package.
Then, select and drag all your classes to the new package. Android Studio will refactor the package name everywhere.
Finally, delete the old package.
Done.
Very important:
You have to man...