大约有 2,540 项符合查询结果（耗时：0.0191秒） [XML]
How to get the current date/time in Java [duplicate]
...Millis() gives you that, expressed as the number of milliseconds after the UNIX epoch (as a Java long). This value is a delta from a UTC time-point, and is independent of the local time-zone ... assuming that the system clock has been set correctly.
If you want the date / time in a form that allows...
How to tell if JRE or JDK is installed
...above code is run. See unit tests below for more info...
Unit tests:
# Unix
java -XshowSettings:properties -version 2>&1|grep "sun.boot.library.path"
# Windows
java -XshowSettings:properties -version 2>&1|find "sun.boot.library.path"
# PASS: MacOS AdoptOpenJDK JDK11
/Libr...
Connect Java to a MySQL database
...ple.YourClass and the ; is the classpath separator as it is in Windows. In Unix and clones : should be used.
Create a database in MySQL. Let's create a database javabase. You of course want World Domination, so let's use UTF-8 as well.
CREATE DATABASE javabase DEFAULT CHARACTER SET utf8 COLLATE utf...
What is the list of possible values for navigator.platform as of today? [closed]
...4 (2013)
PSP: PlayStation Portable (2004)
Various
HP-UX: Hewlett-Packard UniX
masking-agent: value changes to this when using Masking Agent for Firefox
WebTV OS
X11: X11 Window System
Have a device that's not on this list? Please leave a comment listing your device's properties and its navigator....
How do I install Python OpenCV through Conda?
...
conda install opencv currently works for me on UNIX/python2. This is worth trying first before consulting other solutions.
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How can I see all the issues I'm watching on Github?
...ed issues from any arbitrary repository in which you are not involved.
On Unix you can access the API like this (just enter your GitHub password when propmted):
curl --user "MyUserName" https://api.github.com/issues?filter=subscribed
Output:
[
{
"url": "https://api.github.com/repos/owner1/r...
How to exclude a directory in find . command
...o 3 > /proc/sys/vm/drop_caches && free" to clear the cache (see unix.stackexchange.com/questions/87908/…).
– ndemou
Nov 19 '14 at 9:40
...
TCP: can two different sockets share a port?
...s a 16 bit integer, but there are other protocols as well (for example, on unix sockets, a "port" is essentially a string).
The main problem is the following: if an incoming packet arrives, the kernel can identify its socket by its destination port number. It is a most common way, but it is not the...
Rails has_and_belongs_to_many migration
...: ["foo_bar", "foo", "foo bar"].sort # => ["foo", "foo bar", "foo_bar"] Unix sort comes up the same.
– Shadoath
Aug 18 '16 at 4:51
...
What is the best way to force yourself to master vi? [closed]
...ed at the list in a long time.
A couple years ago I had need to work on a UNIX platform where vi was the only editor available. I bought a little pocket reference book on vi, but hardly used it. I ended up making lists and posting them on the wall as I did the first time I used vi. By the end of...