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C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly
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#include <sys/time.h>
#include <stdio.h>
#include <unistd.h>
int main()
{
struct timeval start, end;
long mtime, seconds, useconds;
gettimeofday(&start, NULL);
usleep(2000);
gettimeofday(...
What causes javac to issue the “uses unchecked or unsafe operations” warning
...ollections without type specifiers (e.g., Arraylist() instead of ArrayList<String>()). It means that the compiler can't check that you're using the collection in a type-safe way, using generics.
To get rid of the warning, just be specific about what type of objects you're storing in the coll...
How do I join two lists in Java?
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In Java 8:
List<String> newList = Stream.concat(listOne.stream(), listTwo.stream())
.collect(Collectors.toList());
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Reshaping data.frame from wide to long format
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reshape() takes a while to get used to, just as melt/cast. Here is a solution with reshape, assuming your data frame is called d:
reshape(d,
direction = "long",
varying = list(names(d)[3:7]),
v.names = "Value",
idvar = c("Code", "Country"),
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How do I do a Date comparison in Javascript? [duplicate]
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new Date('1945/05/09').valueOf() < new Date('2011/05/09').valueOf()
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Sorting an ArrayList of objects using a custom sorting order
... ordering objects:
The Java Tutorials - Collections - Object Ordering
Although I will give some examples, I would recommend to read it anyway.
There are various way to sort an ArrayList. If you want to define a natural (default) ordering, then you need to let Contact implement Comparable. Ass...
Parsing JSON from XmlHttpRequest.responseJSON
I'm trying to parse a bit.ly JSON response in javascript.
5 Answers
5
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How do I get Gridview to render THEAD?
How do I get the GridView control to render the <thead> <tbody> tags? I know .UseAccessibleHeaders makes it put <th> instead of <td> , but I cant get the <thead> to appear.
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How to write character & in android strings.xml
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This is a my issues, my solution is as following: Use &gt; for <, &lt;for > , &amp; for & ,"'" for ' , &quot for \"\"
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How can I push a specific commit to a remote, and not previous commits?
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To push up through a given commit, you can write:
git push <remotename> <commit SHA>:<remotebranchname>
provided <remotebranchname> already exists on the remote. (If it doesn't, you can use git push <remotename> <commit SHA>:refs/heads/<remote...