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How to split a string and assign it to variables
...0.0.1:5432", ":")
ip, port := s[0], s[1]
fmt.Println(ip, port)
}
Output:
127.0.0.1 5432
One step, for example,
package main
import (
"fmt"
"net"
)
func main() {
host, port, err := net.SplitHostPort("127.0.0.1:5432")
fmt.Println(host, port, err)
}
Output:
127.0.0.1 ...
How to dynamically create generic C# object using reflection? [duplicate]
...
Check out this article and this simple example. Quick translation of same to your classes ...
var d1 = typeof(Task<>);
Type[] typeArgs = { typeof(Item) };
var makeme = d1.MakeGenericType(typeArgs);
object o = Activator.Crea...
postgresql - sql - count of `true` values
...HEN myCol THEN 1 ELSE 0 END),0) FROM <table name>
or, as you found out for yourself:
SELECT count(CASE WHEN myCol THEN 1 END) FROM <table name>
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git diff two files on same branch, same commit
... This may work, but it isn't git diff. It's a completely different output format.
– daboross
Apr 1 '14 at 4:03
11
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“Unicode Error ”unicodeescape" codec can't decode bytes… Cannot open text files in Python 3 [duplica
...n it. I.E. the string didn't give me an error until I tried to comment it out. For this reason the double backslash method might be preferred.
– Chris Mueller
May 22 '15 at 15:46
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How do you Force Garbage Collection from the Shell?
...e box and I want to force garbage collection on it. How do you do this without popping into jvisualvm or jconsole and friends?
...
Get size of an Iterable in Java
I need to figure out the number of elements in an Iterable in Java.
I know I can do this:
10 Answers
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How to display line numbers in 'less' (GNU)
...ch
line in the display.
You can also toggle line numbers without quitting less by typing -N.
It is possible to toggle any of less's command line options in this way.
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Set margins in a LinearLayout programmatically
I'm trying to use Java ( not XML ) to create a LinearLayout with buttons that fill the screen, and have margins. Here is code that works without margins:
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How to convert jsonString to JSONObject in Java
... object to JSON format
String json = gson.toJson(obj);
System.out.println(json);
}
}
Output
{"data1":100,"data2":"hello"}
Resources:
Google Gson Project Home Page
Gson User Guide
Example
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