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How do I specify the exit code of a console application in .NET?
... You say that 0 is the standard value for success, and yet when converting 0/1 to boolean, 0 is false and 1 is true! It may be more accurate to say that an exit code of 0 means "no error", rather than "success", as the exit code is an ErrorResult not simply a Result.
...
How to create PDFs in an Android app? [closed]
... can then open this dummy activity, take a screenshot programmatically and convert that image to pdf using this library. Of course there are limitations such as not being able to scroll, not more than one page,but for a limited application this is quick and easy. Hope this helps someone!
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Will using 'var' affect performance?
... that were expecting a variable of type int because it can't automatically convert the float, but that's exactly the same thing that would happen if you explicitly used int and then changed to float. In any case, your answer still does not answer the question of "does using var affect performance?" ...
How do you return a JSON object from a Java Servlet
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First convert the JSON object to String. Then just write it out to the response writer along with content type of application/json and character encoding of UTF-8.
Here's an example assuming you're using Google Gson to convert a Ja...
How do I load a file from resource folder?
...ce returns a URL, not a file. The getFile method of java.net.URL does not convert a URL to a file; it just returns the path and query portions of the URL. You shouldn't even try to convert it to a File; just call openStream and read from that.
– VGR
Apr 7 '...
Hashing a file in Python
...pisti points out, we gotta deal with those bigger files in chunks!
import sys
import hashlib
# BUF_SIZE is totally arbitrary, change for your app!
BUF_SIZE = 65536 # lets read stuff in 64kb chunks!
md5 = hashlib.md5()
sha1 = hashlib.sha1()
with open(sys.argv[1], 'rb') as f:
while True:
...
How do I calculate tables size in Oracle
..._rows*avg_row_len)/(1024*1024)) MB
from all_tables
where owner not like 'SYS%' -- Exclude system tables.
and num_rows > 0 -- Ignore empty Tables.
order by MB desc -- Biggest first.
;
--Tables + Rows
select owner, table_name, num_rows
from all_tables
where owner not like 'SYS%' -- Exclude...
Check if OneToOneField is None in Django
...on 3.4, Django 1.9.2, and SQLite3 3.8.2.
# Tested with Django 1.9.2
import sys
import django
from django.apps import apps
from django.apps.config import AppConfig
from django.conf import settings
from django.core.exceptions import ObjectDoesNotExist
from django.db import connections, models, DEFAUL...
How to iterate a loop with index and element in Swift
...arrays.
In this array I wanted to filter odd or even indexed elements and convert them from Ints to Doubles. So enumerate() gets you index and the element, then filter checks the index, and finally to get rid of the resulting tuple I map it to just the element.
let evens = arrayOfValues.enumerate(...
tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
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RPS就会选择特定的cpu做协议栈处理， 映射关系可以通过/sys/class/net//queues/rx-/rps_cpus来配置。 但是RPS并不清楚应用程序在哪个cpu上。
RFS（Receive Flow Steering）：RFS是在RPS的基础上， 解决了RPS的问题。 当应用程序调用recvmsg的时候...