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Static Classes In Java
...Class {
public static void main(String []args){
MyStaticClass.setMyStaticMember(5);
System.out.println("Static value: " + MyStaticClass.getMyStaticMember());
System.out.println("Value squared: " + MyStaticClass.squareMyStaticMember());
// MyStaticClass x = new My...
What's an Aggregate Root?
...s Computer : IEntity, IAggregateRoot
{
public Hardware Hardware { get; set; }
public Software Software { get; set; }
}
public class Hardware : IEntity { }
public class Software : IValueObject { }
public class Repository<T> : IRepository<T> where T : IAggregateRoot {}
Keep in ...
Why is the clone() method protected in java.lang.Object?
...faces into the mix - try and attempt to clone an unknown implementation of Set
– oxbow_lakes
Jul 16 '09 at 16:57
@oxbo...
Primary key or Unique index?
...h reference to nulls, ansi standards allow multiple null values in an data set with a unique constraint on it, and that is also the implementation on Oracle and PostgreSQL. I believe that SQL Server only allows one null value though.
– David Aldridge
Aug 30 '13...
What's the difference between TRUNCATE and DELETE in SQL
...ficient if the table is to be reloaded with data. The high water mark is reset.
Row scope
Delete can be used to remove all rows or only a subset of rows. Truncate removes all rows.
Oracle
When a table is partitioned, the individual partitions can be truncated in isolation, thus a partial remov...
Installing Python 3 on RHEL
...
sudo yum install -y python34
# Install pip3
sudo yum install -y python34-setuptools # install easy_install-3.4
sudo easy_install-3.4 pip
You can create your virtualenv using pyvenv:
pyvenv /tmp/foo
[EPEL] How to install Python 3.6 on CentOS 7
With CentOS7, pip3.6 is provided as a package :)...
Why does viewWillAppear not get called when an app comes back from the background?
... static variable('static BOOL enteredBackground;' then I add class methods setters and getters. In applicationDidEnterBackground, I set the variable to true. Then in applicationDidBecomeActive, I check the static bool, and if it is true, I "doMyLayoutStuff" and reset the variable to 'NO'. This preve...
What is a “slug” in Django?
...ans of a function, given the title (or another piece of data), rather than setting it manually.
An example:
<title> The 46 Year Old Virgin </title>
<content> A silly comedy movie </content>
<slug> the-46-year-old-virgin </slug>
Now let's pretend that we have a...
Is it possible to “decompile” a Windows .exe? Or at least view the Assembly?
...alternatively "binary" or "machine code").
The way that a computer runs a set of machine code instructions is ultimately very simple. Each action a processor can take (e.g., read from memory, add two values) is represented by a numeric code. If I told you that the number 1 meant scream and the numb...
Nesting await in Parallel.ForEach
...
The whole idea behind Parallel.ForEach() is that you have a set of threads and each thread processes part of the collection. As you noticed, this doesn't work with async-await, where you want to release the thread for the duration of the async call.
You could “fix” that by bl...