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Java rounding up to an int using Math.ceil
...anation behind the "less intuitive approach"
Since dividing two integer in Java (and most other programming languages) will always floor the result. So:
int a, b;
int result = a/b (is the same as floor(a/b) )
But we don't want floor(a/b), but ceil(a/b), and using the definitions and plots from Wiki...
Eclipse - Unable to install breakpoint due to missing line number attributes
...he debug connection did work correctly).
Window --> Preferences --> Java --> Compiler --> Classfile Generation: "add line number attributes to generated class file" was checked. I did a clean, recompile. I did uncheck it, recompile, check it, recompile. I made sure the project did use t...
Access “this” from Java anonymous class
... 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1084112%2faccess-this-from-java-anonymous-class%23new-answer', 'question_page');
}
);
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How do you cast a List of supertypes to a List of subtypes?
...I think this is kind of a hacky solution -- you're dodging the type safety Java is trying to provide you. At least look at this Java tutorial (docs.oracle.com/javase/tutorial/java/generics/subtyping.html) and consider why you have this problem before fixing it this way.
– jfrit...
Why use @PostConstruct?
In a managed bean, @PostConstruct is called after the regular Java object constructor.
5 Answers
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Is it possible for intellij to organize imports the same way as in Eclipse?
... noise from imports rearrangements. The order in which eclipse imports is: Java, Javax, Org, Com, everything else in alphabetical order. Is it possible to configure IDEA to follow these rules?
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final keyword in method parameters [duplicate]
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Java always makes a copy of parameters before sending them to methods. This means the final doesn't mean any difference for the calling code. This only means that inside the method the variables can not be reassigned. (note t...
In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
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In general, I think the advice by Joshua Bloch in Effective Java best summarises the answer to your question: Use checked expections for recoverable conditions and runtime exceptions for programming errors (Item 58 in 2nd edition).
So in this case, if you really want to use exceptio...
How to make Eclipse behave well in the Windows 7 taskbar?
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Specify the latest available Java VM in your eclipse.ini. I.e.:
-vm
jdk1.6.0_10\jre\bin\client\jvm.dll
Make sure they are on separate lines
Anything after the "vmargs" is taken to be vm arguments
(More info)
Or alternatively add the java bin folde...
How to avoid the need to specify the WSDL location in a CXF or JAX-WS generated webservice client?
When I generate a webservice client using wsdl2java from CXF (which generates something similar to wsimport), via maven, my services starts with codes like this:
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