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Is a Java string really immutable?
... this only means you cannot change it using its public API.
What you are doing here is circumventing the normal API, using reflection. The same way, you can change the values of enums, change the lookup table used in Integer autoboxing etc.
Now, the reason s1 and s2 change value, is that they bot...
Correct way to delete cookies server-side
...ould work in most cases. Related: some people may wonder why their cookies do not get removed even after sending this header. In that case, have a look at cookies from other domains. For example, after deleting foo=bar; domain=www.example.com, an other cookie foo=qux; domain=.example.com will be use...
Which MySQL data type to use for storing boolean values
Since MySQL doesn't seem to have any 'boolean' data type, which data type do you 'abuse' for storing true/false information in MySQL?
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Modify SVG fill color when being served as Background-Image
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One way to do this is to serve your svg from some server side mechanism.
Simply create a resource server side that outputs your svg according to GET parameters, and you serve it on a certain url.
Then you just use that url in your css....
What and where are the stack and heap?
... operations are typically one machine instruction, and modern machines can do at least 3 of them in one cycle, whereas allocating or freeing heap involves calling into OS code.
– sqykly
Oct 8 '13 at 8:31
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prototype based vs. class based inheritance
...n JavaScript, every object is at the same time an instance and a class. To do inheritance, you can use any object instance as a prototype.
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Using the scrollwheel in GNU screen
...t the manual pages.
screen(1) says:
termcapinfo term terminal-tweaks [window-tweaks]
[..]
The first argument specifies which terminal(s) should be affected by this
definition. You can specify multiple terminal names by separating them with
`|'s. Use `*' to match all terminals and `vt*' to ...
Developing for Android in Eclipse: R.java not regenerating
I've found out that my R.java is never updated, so it doesn't contain information about my new resources, so I decided to delete it and thought that Eclipse would generate a new one. But that didn't happen, and I don't have R.java now. How can I regenerate one?
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Open a file with Notepad in C#
How I open a file in c#? I don't mean reading it by textreader and readline(). I mean open it as an independent file in notepad.
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ReactJS state vs prop
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Your second approach is more like it. React doesn't care about models so much as it cares about values and how they flow through your app. Ideally, your post model would be stored in a single component at the root. You then create child components that each consume par...