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How to send emails from my Android application?
...rfc822");
i.putExtra(Intent.EXTRA_EMAIL , new String[]{"recipient@example.com"});
i.putExtra(Intent.EXTRA_SUBJECT, "subject of email");
i.putExtra(Intent.EXTRA_TEXT , "body of email");
try {
startActivity(Intent.createChooser(i, "Send mail..."));
} catch (android.content.ActivityNotFoundExcep...
Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...1k + a2k + ... + akk = bk
Using Newton's identities, knowing bi allows to compute
c1 = a1 + a2 + ... ak
c2 = a1a2 + a1a3 + ... + ak-1ak
...
ck = a1a2 ... ak
If you expand the polynomial (x-a1)...(x-ak) the coefficients will be exactly c1, ..., ck - see Viète's formulas. Since every polynomial...
Executing periodic actions in Python [duplicate]
...
Here's a nice implementation using the Thread class: http://g-off.net/software/a-python-repeatable-threadingtimer-class
the code below is a little more quick and dirty:
from threading import Timer
from time import sleep
def hello():
print "hello, world"
t = Timer(3,h...
App Inventor 2 如何接入ChatGPT：国内访问OpenAI的最佳方式 · App Inventor 2 中文网
...ApiKey接入
ChatGPT ApiKey接入：https://platform.openai.com/api-keys
如果测试报错：Some(“insufficient_quota”)，如下：
说明ApiKey配额不足，需要绑定信用卡进行扣费才能正常使用（国内的卡不行）。
https://platform.openai.com/settin...
Ignore files that have already been committed to a Git repository [duplicate]
...hed filename
To untrack every file that is now in your .gitignore:
First commit any outstanding code changes, and then, run this command:
git rm -r --cached .
This removes any changed files from the index(staging area), then just run:
git add .
Commit it:
git commit -m ".gitignore is now...
How to get the jQuery $.ajax error response text?
...
eval is EVIL... stackoverflow.com/questions/646597/…
– German Latorre
Aug 8 '13 at 6:55
...
Updating version numbers of modules in a multi-module Maven project
...you made a mistake, do
mvn versions:revert
afterwards, or
mvn versions:commit
if you're happy with the results.
Note: this solution assumes that all modules use the aggregate pom as parent pom also, a scenario that was considered standard at the time of this answer. If that is not the case,...
Cache Invalidation — Is there a General Solution?
...otification process.
Note: As using the timestamp is the traditional way http proxies are working, another approach is sharing a hash of the content stored. The only way I know for 2 entities to get updated together are either I call you (pull) or you call me… (push) that's all.
...
How to make a function wait until a callback has been called using node.js
...function should accept a callback parameter that will be invoked when then computation is complete. The caller should not wait for the value to be "returned" in the normal sense, but rather send the routine that will handle the resulting value:
function(query, callback) {
myApi.exec('SomeCommand'...
What does set -e mean in a bash script?
... 'do_something' ERR
to run do_something function when errors occur.
See http://mywiki.wooledge.org/BashFAQ/105
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