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Fundamental difference between Hashing and Encryption algorithms
...ller output than it's capable of inputting (If you feed every possible 1mb file into MD5, you'll get a ton of collisions).
The reason they are hard (or impossible in practicality) to reverse is because of how they work internally. Most cryptographic hash functions iterate over the input set many t...
How to make the corners of a button round?
...
If you want something like this
here is the code.
1.Create a xml file in your drawable folder like mybutton.xml and paste the following markup:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:st...
How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre
...
This worked for me. I was running API 19 and used a SVG file for notification icon and was giving me this error, until I switched it to a small png icon
– WHOATEMYNOODLES
Aug 23 '19 at 21:00
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Django migration strategy for renaming a model and relationship fields
...pdate the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So try manage.py makemigrations first and then check the migration file.
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Correct way to define Python source code encoding
...;encoding-name> -*-
which is recognized also by GNU Emacs, and
# vim:fileencoding=<encoding-name>
which is recognized by Bram Moolenaar’s VIM."
So, you can put pretty much anything before the "coding" part, but stick to "coding" (with no prefix) if you want to be 100% python-docs-re...
What is difference between monolithic and micro kernel?
...s running entirely in a single address space. It is a single static binary file. All kernel services exist and execute in the kernel address space. The kernel can invoke functions directly. Examples of monolithic kernel based OSs: Unix, Linux.
In microkernels, the kernel is broken down into separat...
Understanding Spring @Autowired usage
...red annotation spares you the need to do the wiring by yourself in the XML file (or any other way) and just finds for you what needs to be injected where, and does that for you.
Full explanation
The @Autowired annotation allows you to skip configurations elsewhere of what to inject and just does i...
Gradle, “sourceCompatibility” vs “targetCompatibility”?
...s is how I sort this issue out, right in the beginning of the build.gradle file.
– Xerus
Nov 6 '17 at 10:28
2
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How to export table as CSV with headings on Postgresql?
I'm trying to export a PostgreSQL table with headings to a CSV file via command line, however I get it to export to CSV file, but without headings.
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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?
...acle JDK installed,
adding one of the following lines to your ~/.bash_profile file will set the environment variable accordingly.
export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"
Upd...