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Published on 2010-03-11T18:12:41Z
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Why are copy constructors unnecessary for immutable objects? Please explain this for me.
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I want to have immutable Java objects like this (strongly simplyfied):
class Immutable {
protected String name;
public Immutable(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
In some cases the object should not only be readable…
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I showed this struct to a fellow programmer and they felt that it should be a mutable class. They felt it is inconvenient not to have null references and the ability to alter the object as required. I would really like to know if there are any other reasons to make this a mutable class.
[Serializable]
public…
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Why are copy constructors unnecessary for immutable objects? Please explain this for me.
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why copyconstructor unnecessary for immutable objects?.Please clarify me.
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Sorry for the waffly title - if I could come up with a concise title, I wouldn't have to ask the question.
Suppose I have an immutable list type. It has an operation Foo(x) which returns a new immutable list with the specified argument as an extra element at the end. So to build up a list of strings…
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I have installed encfs and started using it to secure all my personal & office data and it was working absolutely fine until 2 hours back. The setup is like this.
I have a folder in Copy folder called OfficeData which gets synchronized with my Copy folder
When I login into the system I use…
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Hello
I need to copy a node and its sub-nodes:
first: one identical copy
followed by a modified copy with some attributes values changed
Here is the extract to change:
<Configuration
Name="Debug|Win32"
OutputDirectory=".\Debug"
IntermediateDirectory=".\Debug"
ATLMinimizesCRunTimeLibraryUsage="FALSE"
…
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I have this problem on my home network where when I try to copy files via wireless connection, at some point the copy fails and the machine doing the copy loses connection to the network.
I'm pretty much lost as to figuring out the source for the problem...
Some more details that might help:
It's…
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Hi,
I need to copy a /home/user folder from one hardisk to another one. It has 100000 files and around 10G size.
I use
cp -r /origin /destination
sometines I get some errors due to broken links, permissions and so on. So I fix the error, and need to start again the copy.
I wonder how could…
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I need some help to determine whether the memory bandwidth I'm seeing under Linux on my server is normal or not. Here's the server spec:
HP ProLiant DL165 G7
2x AMD Opteron 6164 HE 12-Core
40 GB RAM (10 x 4GB DDR1333)
Debian 6.0
Using mbw on this server I get the following numbers:
foo1:~# mbw…
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