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Why does the indexing start with zero in 'C'?
...pression (such as the name of an array object) is usually, but not always, converted to a pointer to the first element. Example: sizeof arr yields the size of the array object, not the size of a pointer.
– Keith Thompson
Sep 21 '11 at 7:44
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updating table rows in postgres using subquery
...ery.customer,
address=subquery.address,
partn=subquery.partn
FROM (SELECT address_id, customer, address, partn
FROM /* big hairy SQL */ ...) AS subquery
WHERE dummy.address_id=subquery.address_id;
This syntax is not standard SQL, but it is much more convenient for this type of query...
OSX - How to auto Close Terminal window after the “exit” command executed.
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in Terminal.app
Preferences > Profiles > (Select a Profile) > Shell.
on 'When the shell exits' chosen 'Close the window'
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Android image caching
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Convert them into Bitmaps and then either store them in a Collection(HashMap,List etc.) or you can write them on the SDcard.
When storing them in application space using the first approach, you might want to wrap them around...
How to parse unix timestamp to time.Time
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You can directly use time.Unix function of time which converts the unix time stamp to UTC
package main
import (
"fmt"
"time"
)
func main() {
unixTimeUTC:=time.Unix(1405544146, 0) //gives unix time stamp in utc
unitTimeInRFC3339 :=unixTimeUTC.Format(time.RFC333...
IntelliJ does not show project folders
...next button which takes you to the Content root. Find your root folder and select it
Click the "ok" button
Ignore any warning that says the name is already in use
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Apache Commons equals/hashCode builder [closed]
...yd The Guava-way not only creates an array object for the varargs, it also converts ALL parameters to objects. So when you pass 10 int values to it then you will end up with 10 Integer objects and an array object. The commons-lang solution only creates a single object, no matter how many values you ...
Ruby max integer
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Ruby automatically converts integers to a large integer class when they overflow, so there's (practically) no limit to how big they can be.
If you are looking for the machine's size, i.e. 64- or 32-bit, I found this trick at ruby-forum.com:
m...
How can I iterate through the unicode codepoints of a Java String?
... add a workaround method that works with foreach loops (ref), plus you can convert it to java 8's new String#codePoints method easily when you move to java 8:
You can use it with foreach like this:
for(int codePoint : codePoints(myString)) {
....
}
Here's the helper mthod:
public static It...
How to empty a redis database?
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$ redis-cli then select database. I am selecting 0 > select 0 and delete all keys of db 0 > FLUSHDB
– sagar junnarkar
May 5 '15 at 17:41
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