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Immutability of Strings in Java
Consider the following example.
26 Answers
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Removing elements by class name?
...e so:
$('.column').remove();
Otherwise, you're going to need to use the parent of each element to remove it:
element.parentNode.removeChild(element);
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How to loop through all the properties of a class?
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Use Reflection:
Type type = obj.GetType();
PropertyInfo[] properties = type.GetProperties();
foreach (PropertyInfo property in properties)
{
Console.WriteLine("Name: " + property.Name + ", Value: " + property.GetValue(obj, null));
}
for...
How To Change DataType of a DataColumn in a DataTable?
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You cannot change the DataType after the Datatable is filled with data. However, you can clone the Data table, change the column type and load data from previous data table to the cloned table as shown below.
DataTable dtCloned = dt.Clone();
dtCloned.C...
Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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What is a segmentation fault?
...lt? Is it different in C and C++? How are segmentation faults and dangling pointers related?
14 Answers
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JSP tricks to make templating easier?
At work I've been tasked with turning a bunch of HTML files into a simple JSP project. It's really all static, no serverside logic to program. I should mention I'm completely new to Java. JSP files seem to make it easy to work with common includes and variables, much like PHP , but I'd like to ...
Margin on child element moves parent element
I have a div ( parent ) that contains another div ( child ). Parent is the first element in body with no particular CSS style. When I set
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Retrieve CPU usage and memory usage of a single process on Linux?
I want to get the CPU and memory usage of a single process on Linux - I know the PID. Hopefully, I can get it every second and write it to a CSV using the 'watch' command. What command can I use to get this info from the Linux command-line?
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Detecting a mobile browser
...tmobilebrowsers.com):
Here's a function that uses an insanely long and comprehensive regex which returns a true or false value depending on whether or not the user is browsing with a mobile.
window.mobileCheck = function() {
let check = false;
(function(a){if(/(android|bb\d+|meego).+mobile|ava...