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Finding Number of Cores in Java

How can I find the number of cores available to my application from within Java code? 4 Answers ...
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What is the reason for a red exclamation mark next to my project in Eclipse?

... Package Explorer and Project Explorer views now show a new decorator on Java projects and working sets that contain build path errors: The concrete errors can be seen in the Problems view, and if you open the view menu and select Group By > Java Problem Type, they all show up ...
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Passing Parameters JavaFX FXML

How can I pass parameters to a secondary window in javafx? Is there a way to communicate with the corresponding controller? ...
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What is the fastest way to compare two sets in Java?

... You have the following solution from https://www.mkyong.com/java/java-how-to-compare-two-sets/ public static boolean equals(Set<?> set1, Set<?> set2){ if(set1 == null || set2 ==null){ return false; } if(set1.size() != set2.size()){ return fal...
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Java ByteBuffer to String

... There's no k.getBytes() method in java.nio.ByteBuffer (may be not in the version am using). So I used k.array() method which will return byte[]. – Madura Pradeep Apr 20 '16 at 9:29 ...
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Eclipse Optimize Imports to Include Static Imports

...so has the Favorite preference section: Window > Preferences > Java > Editor > Content Assist > Favorites In mine, I have the following entries (when adding, use "New Type" and omit the .*): org.hamcrest.Matchers.* org.hamcrest.CoreMatchers.* org.junit.* org.junit.Assert.* o...
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What's wrong with overridable method calls in constructors?

... the object may be inconsistent and/or incomplete. A quote from Effective Java 2nd Edition, Item 17: Design and document for inheritance, or else prohibit it: There are a few more restrictions that a class must obey to allow inheritance. Constructors must not invoke overridable methods, directl...
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How to parse date string to Date? [duplicate]

...o reconsider if you wouldn't rather like to use HH instead of kk. Read the javadoc for details about valid patterns. share | improve this answer | follow | ...
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Cannot change version of project facet Dynamic Web Module to 3.0?

...to create a dynamic webapp in Eclipse. I added some folders like src/test/java and src/test/resources . Also I changed the library in Java Build Path to obtain the JavaSE-1.7. It's all OK up to here. ...
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Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)

.... Which is more modular then? The STL may not follow the rules of OOP as Java defines it, but doesn't it achieve the goals of OOP? Doesn't it achieve reusability, low coupling, modularity and encapsulation? And doesn't it achieve these goals better than an OOP-ified version would? As for why the...