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android get all contacts
... cur.close();
}
}
If you need more reference means refer this link Read ContactList
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How does a public key verify a signature?
...r exposing the private key within the signed message to the recipient? (re-read that a few times until it makes sense)
Other answers have already explained how asymmetric cryptography means that you can either:
Encrypt with public key, decrypt with matching private key (pseudocode below)
var m...
Convert JSON string to dict using Python
...ke the vague nomenclature used. Here is what I wrote to combat this: def read_json(json_data): if (type(json_data) == str): return json.loads(json_data) elif (str(type(json_data)) == "<class '_io.TextIOWrapper'>"): return json.load(json_data) I'm sure this can be im...
SqlDataAdapter vs SqlDataReader
What are the differences between using SqlDataAdapter vs SqlDataReader for getting data from a DB?
5 Answers
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Are std::vector elements guaranteed to be contiguous?
...ctually C++03 is also called C++98-TC1 (technical corrigendum) from what i read
– Johannes Schaub - litb
May 11 '09 at 18:02
2
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NGINX to reverse proxy websockets AND enable SSL (wss://)?
...pgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_read_timeout 86400;
}
You can also check the nginx changelog and the WebSocket proxying documentation.
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How to merge 2 JSON objects from 2 files using jq?
...:"baz","a":0}' | jq -s add
{
"a": 0,
"b": "bar",
"c": "baz"
}
This reads all JSON texts from stdin into an array (jq -s does that) then it "reduces" them.
(add is defined as def add: reduce .[] as $x (null; . + $x);, which iterates over the input array's/object's values and adds them. Obje...
How to write a UTF-8 file with Java?
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@Smarty only if you are already using Apache Commons. Otherwise it seems an awful waste to include yet another jar just because you don't want to write a few more characters.
– Jason
Jan 10 '14 at 1:03
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Pythonic way to check if a file exists? [duplicate]
...en(fd, 'w')
This should open your file for writing if it doesn't exist already, and return a file-object. If it does exists, it will print "Ooops" and return None (untested, and based solely on reading the python documentation, so might not be 100% correct).
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IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration d
...ck of validity as this is most likely just the effect of not being able to read the file due to a lack of authorization.
The reason it cannot read the config file is because the process running your web app does not have permission to access the file/directory. So you need to give the process runni...