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What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
...ence between getPath() , getAbsolutePath() , and getCanonicalPath() in Java?
6 Answers
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Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
Using Spring's Java Config, I need to acquire/instantiate a prototype-scoped bean with constructor arguments that are only obtainable at runtime. Consider the following code example (simplified for brevity):
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Where to place and how to read configuration resource files in servlet based application?
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It's your choice. There are basically three ways in a Java web application archive (WAR):
1. Put it in classpath
So that you can load it by ClassLoader#getResourceAsStream() with a classpath-relative path:
ClassLoader classLoader = Thread.currentThread().getContextClassLoader()...
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
... and choose properties.
click on Deployment Assembly.
click add
click on "Java Build Path Entries"
select Maven Dependencies"
click Finish.
Rebuild and deploy again
Note: This is also applicable for non maven project.
sh...
Is Fortran easier to optimize than C for heavy calculations?
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Yes, in 1980; in 2008? depends
When I started programming professionally the speed dominance of Fortran was just being challenged. I remember reading about it in Dr. Dobbs and telling the older programmers about the article--they lau...
The difference between Classes, Objects, and Instances
What is a class, an object and an instance in Java?
16 Answers
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How do I find out which keystore was used to sign an app?
... with this keystore, and with the alias 'android_key'.
Keytool is part of Java, so make sure your PATH has Java installation dir in it.
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Best practice to validate null and empty collection in Java
...s about the same thing with C#, but the principles applies equally well to java. Like mentioned there, null should be returned only if
null might mean something more specific;
your API (contract) might force you to return null.
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How to switch to the new browser window, which opens after click on the button?
... tested that. If this works perfectly in C#, but is implemented wrongly in Java you should report that as a bug.
– Elmue
Aug 14 '17 at 3:34
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Extending from two classes
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@MasterJoe2 To be honest, I haven't done very much using Java for a while now (I stopped around the time I wrote this answer). One of the reasons I avoid it now-a-days is the very issue you raise. A hunch for a direction you could possibly investigate, is writing an abstract class ...