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How to round a number to n decimal places in Java
...the format pattern for your required output.
Example:
DecimalFormat df = new DecimalFormat("#.####");
df.setRoundingMode(RoundingMode.CEILING);
for (Number n : Arrays.asList(12, 123.12345, 0.23, 0.1, 2341234.212431324)) {
Double d = n.doubleValue();
System.out.println(df.format(d));
}
gi...
How does the socket API accept() function work?
...a database entry, the message is handed off to an existing handler, else a new database entry is created and a new handler spawned to handle that socket.
In the early days of the ARPAnet, certain protocols (FTP for one) would listen to a specified port for connection requests, and reply with a hand...
How to replace all strings to numbers contained in each string in Notepad++?
... \1 Works in all versions of Notepad++. $1 only works in the newer ones.
– Cullub
Sep 23 '14 at 3:01
I'm...
Import .bak file to a database in SQL server
...
There is a different article for restoring to a new database found here: msdn.microsoft.com/en-us/library/ms186390(v=sql.90).aspx
– Jon Schoning
Aug 2 '12 at 1:45
...
What is meant by “managed” vs “unmanaged” resources in .NET?
...ion, it's recommended you write your code thusly:
using (var connection = new SqlConnection("connection_string_here"))
{
// Code to use connection here
}
As this ensures that .Dispose() is called on the connection object, ensuring that any unmanaged resources are cleaned up.
...
What's the difference between dynamic (C# 4) and var?
I had read a ton of articles about that new keyword that is shipping with C# v4, but I couldn't make out the difference between a "dynamic" and "var".
...
What does __FILE__ mean in Ruby?
...path expanded correctly under my test. My ruby version is 2.3.7, maybe the newer ruby version fixed this issue.
– Alec.Zhou
Mar 25 '19 at 15:53
...
Best practice for instantiating a new Android Fragment
I have seen two general practices to instantiate a new Fragment in an application:
13 Answers
...
How to fix committing to the wrong Git branch?
...he topic, but this might be helpful to someone.
If you forgot to create a new branch before committing and committed all on master, no matter how many commits you did, the following approach is easier:
git stash # skip if all changes are committed
git branch my_feature
git re...
How to compare dates in datetime fields in Postgresql?
...unction () {
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...