A singleton is a class which only allows one instance of itself to be created – and gives simple, easy access to said instance. The singleton premise is a pattern across software development. There is a C# implementation “Implementing the Singleton Pattern in C#” covering most of what you need to know – including some … Read more
Newer files on JsDelivr get the sourcemap added automatically to the end of them. This is fine and doesn’t throw any SourceMap-related notice in the console as long as you load the files from JsDelivr. The problem occurs only when you copy and then load these files from your own server. In order to fix … Read more
A JAR file is actually just a ZIP file. It can contain anything – usually it contains compiled Java code (*.class), but sometimes also Java sourcecode (*.java). However, Java can be decompiled – in case the developer obfuscated his code you won’t get any useful class/function/variable names though.
I was trying to solve the problem with cookie-free, the yslow has suggested to create a subdomain. I did, but the yslow still “show” the problem. i didn’t set the cookie´s domain in the page, cause i don’t know how to do it. anyone know a tutorial or a solution to this problem?
I’m trying to decrypt SSL packages with Wireshark as described here. I have already created a SSLKEYLOGFILE System and User variable and the log file. I have restarted my computer (running Windows 10), and opened https urls with Chrome and Firefox, but none write to the ssl log file. My Chrome version is 56.0.2924.87 (64-bit) … Read more
You can use System.out.format() Example: Above code snippet should print the following formatted output: Edit:I found this library which simplifies such kind of formatting. It is also available on Maven.
Yes, contains is case sensitive. You can use java.util.regex.Pattern with the CASE_INSENSITIVE flag for case insensitive matching: EDIT: If s2 contains regex special characters (of which there are many) it’s important to quote it first. I’ve corrected my answer since it is the first one people will see, but vote up Matt Quail’s since he … Read more
I’ve created a file which prints Hello, world as many times at the user wants to give input. No matter what the number entered it always results in a “stack smash”. Here is the program, can anyone come up with a conclusion to why it is doing this? Here is the “traceback” that occurs after … Read more
Environment variables are accessed through os.environ Or you can see a list of all the environment variables using: As sometimes you might need to see a complete list! The Python default installation location on Windows is C:\Python. If you want to find out while running python you can do:
[Note: edited to modernize ggplot syntax] Your example is not reproducible since there is no ex1221new (there is an ex1221 in Sleuth2, so I guess that is what you meant). Also, you don’t need (and shouldn’t) pull columns out to send to ggplot. One advantage is that ggplot works with data.frames directly. You can set … Read more