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How to find out which processes are using swap space in Linux?
Under Linux, how do I find out which process is using the swap space more?
17 Answers
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Identify if a string is a number
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int n;
bool isNumeric = int.TryParse("123", out n);
Update As of C# 7:
var isNumeric = int.TryParse("123", out int n);
or if you don't need the number you can discard the out parameter
var isNumeric = int.TryParse("123", out _);
The var s can be replaced by the...
Compiling simple Hello World program on OS X via command line
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Try
g++ hw.cpp
./a.out
g++ is the C++ compiler frontend to GCC.
gcc is the C compiler frontend to GCC.
Yes, Xcode is definitely an option. It is a GUI IDE that is built on-top of GCC.
Though I prefer a slightly more verbose approach:
#incl...
I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
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If your page does not modify any session variables, you can opt out of most of this lock.
<% @Page EnableSessionState="ReadOnly" %>
If your page does not read any session variables, you can opt out of this lock entirely, for that page.
<% @Page EnableSessionState="False" %>...
How to convert OutputStream to InputStream?
...m on the stage of development, where I have two modules and from one I got output as a OutputStream and second one, which accepts only InputStream . Do you know how to convert OutputStream to InputStream (not vice versa, I mean really this way) that I will be able to connect these two parts?
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Why is “origin/HEAD” shown when running “git branch -r”?
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@robinst is correct.
In git, you can select which branch is checked out by default (i.e. when you clone). By default, origin/HEAD will point at that.
On GitHub, You can change this in the Admin settings for your GitHub repo. You can also do it from the command-line via
git remote set-head o...
What is the difference between a static and a non-static initialization code block
My question is about one particular usage of static keyword. It is possible to use static keyword to cover a code block within a class which does not belong to any function. For example following code compiles:
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Http Basic Authentication in Java using HttpClient?
...ttpPost.setHeader(HttpHeaders.AUTHORIZATION, "Basic " + encoding);
System.out.println("executing request " + httpPost.getRequestLine());
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
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Make an HTTP request with android
...;
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
String responseString = out.toString();
out.close();
//..more logic
} else{
//Closes the connectio...
How can a Java variable be different from itself?
...o use Float.NaN:
float x = Float.NaN; // <--
if (x == x) {
System.out.println("Ok");
} else {
System.out.println("Not ok");
}
Not ok
You can do the same with Double.NaN.
From JLS §15.21.1. Numerical Equality Operators == and !=:
Floating-point equality testing is performed in acco...