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How to calculate the running time of my program? [duplicate]
..., add this line of code :
final long startTime = System.nanoTime();
And then, at the last line of your main method, you can add :
final long duration = System.nanoTime() - startTime;
duration now contains the time in nanoseconds that your program ran. You can for example print this value like ...
Reading and writing binary file
I'm trying to write code to read a binary file into a buffer, then write the buffer to another file. I have the following code, but the buffer only stores a couple of ASCII characters from the first line in the file and nothing else.
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Rails - Could not find a JavaScript runtime?
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If you add a runtime, such as therubyracer to your Gemfile and run bundle then try and start the server it should work.
gem 'therubyracer'
A javascript runtime is required for compiling coffeescript and also for uglifier.
Update, 12/12/2011: Some folks found issues with rubytheracer (I think it...
How to split a string and assign it to variables
...s are multiple ways to split a string :
If you want to make it temporary then split like this:
_
import net package
host, port, err := net.SplitHostPort("0.0.0.1:8080")
if err != nil {
fmt.Println("Error is splitting : "+err.error());
//do you code here
}
fmt.Println(host, port)
Split based...
How can I get column names from a table in Oracle?
...T_LOG that contains eventID , eventType , eventDesc , and eventTime , then I would want to retrieve those field names from the query and nothing else.
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how to convert java string to Date object [duplicate]
...the standard date formatting output. In order to format it after that, you then need to convert it back to a date object with a specified format (already specified previously)
String startDateString = "06/27/2007";
DateFormat df = new SimpleDateFormat("MM/dd/yyyy");
Date startDate;
try {
start...
Automate ssh-keygen -t rsa so it does not ask for a passphrase
...your path:
$sshPath = "<path>\git\bin\"
$env:path += ";$sshPath"
Then to use it in PoshGit it's just:
Add-SshKey "<path>\.shh\KeyFilename"
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Get size of an Iterable in Java
...ckside is that if you want to iterate again later through the same object, then first you should reset it somehow.
– Zsolti
Jan 30 '18 at 16:22
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Creating a ZIP Archive in Memory Using System.IO.Compression
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You need to finish writing the memory stream then read the buffer back.
using (var memoryStream = new MemoryStream())
{
using (var archive = new ZipArchive(memoryStream, ZipArchiveMode.Create))
{
var demoFile = ar...
Combining two Series into a DataFrame in pandas
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I used pandas to convert my numpy array or iseries to an dataframe then added and additional the additional column by key as 'prediction'. If you need dataframe converted back to a list then use values.tolist()
output=pd.DataFrame(X_test)
output['prediction']=y_pred
list=output.values.toli...