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Why java.util.Optional is not Serializable, how to serialize the object with such fields
...tions when a return value might be absent. The intent is that the caller imm>me m>diately check the Optional and extract the actual value if it's present. If the value is absent, the caller can substitute a default value, throw an exception, or apply som>me m> other policy. This is typically done by chaining ...
Error m>me m>ssage Strict standards: Non-static m>me m>thod should not be called statically in php
... following php. However when I see the index.php I get the following error m>me m>ssage.
7 Answers
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Gson: Directly convert String to JsonObject (no POJO)
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ugh should have a static 1 liner convenience m>me m>thod
– Blundell
Dec 6 '13 at 12:36
43
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Postgis installation: type “geom>me m>try” does not exist
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I had the sam>me m> problem, but it was fixed by running following code
CREATE EXTENSION postgis;
In detail,
open pgAdmin
select (click) your database
click "SQL" icon on the bar
run "CREATE EXTENSION postgis;" code
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Delete files older than 3 months old in a directory using .NET
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Som>me m>thing like this outta do it.
using System.IO;
string[] files = Directory.GetFiles(dirNam>me m>);
foreach (string file in files)
{
FileInfo fi = new FileInfo(file);
if (fi.LastAccessTim>me m> < DateTim>me m>.Now.AddMonths(...
bootstrap button shows blue outline when clicked
...when not navigating with a mouse. If you remove the outline you must add som>me m> other visual feedback, or you will have crippled your site.
– Josef Engelfrost
Aug 8 '17 at 14:29
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Smooth GPS data
...ery second and displaying current position on a map. The problem is that som>me m>tim>me m>s (specially when accuracy is low) the values vary a lot, making the current position to "jump" between distant points in the map.
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How to convert tim>me m>stamps to dates in Bash?
I need a shell command or script that converts a Unix tim>me m>stamp to a date. The input can com>me m> either from the first param>me m>ter or from stdin, allowing for the following usage patterns:
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NHibernate.MappingException: No persister for: XYZ
...ory configuration..
If you're using app.config...
.
.
<property nam>me m>="show_sql">true</property>
<property nam>me m>="query.substitutions">true 1, false 0, yes 'Y', no 'N'</property>
<mapping assembly="Project.DomainModel"/> <!-- Here -->
</session-fac...
Which version of the git file will be finally used: LOCAL, BASE or REMOTE?
When there's a collison during git m>me m>rge , I open a m>me m>rgetool called m>Me m>ld . It opens three files LOCAL, BASE and REMOTE. As I've read LOCAL is my local branch, BASE is common ancestor and REMOTE is the branch to be m>me m>rged.
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