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[enter image description here](https://i.stack.imgur.com/68XMo.jpg)
Created new API in local system but is it not creating JSON Array
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I can not solve the problem
I tried to set it in an array list but i do not know how to get it randomly
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Example
if there are 4 slots named A1,B1,C1,D1. If first user enters A1 and when the second user enter the same slot it should error it has already been chosen.
The built-in class java.util.HashMap can do that. Read the docs, perhaps search for some usage examples :)
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Before
[/data/user/0/com.example.hx_loom.evpa/cache/EasyImage/a85f8011-10d5-4050-89d2-1e575da55522.jpg,
/data/user/0/com.example.hx_loom.evpa/cache/EasyImage/4737a29f-7df2-4e1f-abe3-18b71293d76e.jpg]
After
a85f8011-10d5-4050-89d2-1e575da55522.jpg,4737a29f-7df2-4e1f-abe3-18b71293d76e.jpg
please help me this algoritma
If the pattern of the directory of your images is always the same you can incorporate a regular expression to parse everything after EasyImage/.
You can use:
([^\/]+)(?=$)
It matches any character after the last slash.
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Anyone know how to read JSONObjcet from url?
You need to read the answer from the webbapge as String. For example see the answers here. Then you can parse the answer with GSON.
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What function in java gives you the output of these:
05e0
01e1
42e0
66e6
I've tried exp() and expm() but doesn't give the right answer.
I think you want
Double.valueOf("66e6");