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What is the use of a private static variable in Java?
If a variable is declared as public static varName; , then I can access it from anywhere as ClassName.varName . I am also aware that static members are shared by all instances of a class and are not reallocated in each instance.
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Filter by process/PID in Wireshark
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I don't see how. The PID doesn't make it onto the wire (generally speaking), plus Wireshark allows you to look at what's on the wire - potentially all machines which are communicating over the wire. Process IDs aren't unique across different machines, anyway.
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Using the “final” modifier whenever applicable in Java [closed]
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I think it all has to do with good coding style. Of course you can write good, robust programs without using a lot of final modifiers anywhere, but when you think about it...
Adding final to all things which should not change simpl...
What is the purpose of a stack? Why do we need it?
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UPDATE: I liked this question so much I made it the subject of my blog on November 18th 2011. Thanks for the great question!
I've always wondered: what is the purpose of the stack?
I assume you mean the evaluation stack of the MSIL language, and not the actual pe...
How did I get a value larger than 8 bits in size from an 8-bit integer?
I tracked down an extremely nasty bug hiding behind this little gem. I am aware that per the C++ spec, signed overflows are undefined behavior, but only when the overflow occurs when the value is extended to bit-width sizeof(int) . As I understand it, incrementing a char shouldn't ever be undefin...
Domain Driven Design: Domain Service, Application Service
...s a domain service, would I put the actual implementation of this service within the domain assembly and if so, would I also inject repositories into that domain service? Some info would be really helpful.
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Setting Environment Variables for Node to retrieve
I'm trying to follow a tutorial and it says:
16 Answers
16
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Facebook database design?
...able that holds the UserID and then the UserID of the friend (we will call it FriendID). Both columns would be foreign keys back to the Users table.
Somewhat useful example:
Table Name: User
Columns:
UserID PK
EmailAddress
Password
Gender
DOB
Location
TableName: Friends
Co...
Is it good practice to make the constructor throw an exception? [duplicate]
Is it a good practice to make the constructor throw an exception?
For example I have a class Person and I have age as its only attribute. Now
I provide the class as
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What is JAXB and why would I use it? [closed]
...ee what Stack Overflow users think the use case is for JAXB and what makes it a good or a bad solution for that case.
9 Ans...