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How to convert a JSON string to a Map with Jackson JSON
..., from many years ago, seems to be helpful and is still getting upvotes, I now use the GSON library from Google, which I find to be more intuitive.
I've got the following code:
public void testJackson() throws IOException {
ObjectMapper mapper = new ObjectMapper();
File from = new File("a...
What is the use of hashCode in Java?
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Thank you Aishu. Now I got clear knowledge about the hashcode with bucket related explanation.
– Balasubramani
May 16 '15 at 3:02
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How to remove from a map while iterating it?
...roduces the loop variable that is directly usable as the value, and so no knowledge of the container is required inside the loop. This is a clue to the intended usage of the RBFL for loops that do not have to know about the container. Erasing is the complete opposite situation, where it's all about ...
Disable cache for some images
...to prevent caching was:
Cache-Control = 'no-store'
For completeness i'm now using all 3 of 'no-cache, no-store, must-revalidate'
So in my case (serving dynamically generated images out of Flask in Python), I had to do the following to hopefully work in as many browsers as possible...
def make_u...
setResult does not work when BACK button pressed
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And even if there weren't, you wouldn't know about it when it would be introduced in an API update. Not as easily as you would when behavior of onPause() or onDestroy() changed. Those are the methods you are supposed to override.
– pjv
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Evaluating string “3*(4+2)” yield int 18 [duplicate]
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.NET Core now supports DataTable: blogs.msdn.microsoft.com/devfish/2017/05/15/…
– Piedone
Jun 3 '17 at 15:20
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Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path
...thered the certificate information of the URL that I was trying to access.
Now I had to make my java version to know about the certificate so that further it doesn’t refuse to recognize the URL. In this respect I must mention that I googled out that root certificate information stays by default in...
Interpolating a string into a regex
... Sep 29 '08 at 18:53
Jonathan LonowskiJonathan Lonowski
108k3131 gold badges188188 silver badges191191 bronze badges
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Is a Java hashmap search really O(1)?
...hm! We can generalzie this to
pcollision x k = (n / capacity)k
And now we can disregard some arbitrary number of collisions and end up with vanishingly tiny likelihood of more collisions than we are accounting for. You could get the probability to an arbitrarily tiny level by choosing the c...
What is the best java image processing library/approach? [closed]
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I know this question is quite old, but as new software comes out it does help to get some new links to projects that might be interesting for folks.
imgscalr is pure-Java image resizing (and simple ops like padding, cropping, r...