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How to make Java honor the DNS Caching Timeout?
....URL;
import java.net.URLConnection;
public class Test {
final static String hostname = "www.google.com";
public static void main(String[] args) {
// only required for Java SE 5 and lower:
//Security.setProperty("networkaddress.cache.ttl", "30");
System.out.println(...
How to check if one of the following items is in a list?
...olution doesnt seem to work for me. i've substituted the numbers in L2 for strings, and i'm getting the following error: TypeError: 'in <string>' requires string as left operand, not list
– roastbeeef
Jan 16 '19 at 12:21
...
Modify table: How to change 'Allow Nulls' attribute from not null to allow null
... then you will need to perform separate ALTER TABLE .. ALTER COLUMN .. commands
– sonyisda1
Feb 17 '17 at 15:14
...
How to enable file sharing for my app?
... editing info.plist directly, below should help you, don't key in "YES" as string below:
<key>UIFileSharingEnabled</key>
<string>YES</string>
You should use this:
<key>UIFileSharingEnabled</key>
<true/>
...
Blocks and yields in Ruby
...Or, we can also provide a custom sort algorithm, for instance based on the string size:
days.sort do |x,y|
x.size <=> y.size
end
=> ["monday", "friday", "tuesday", "thursday", "wednesday"]
I hope this helps you to understand it better.
BTW, if the block is optional you should cal...
Android ViewPager - Show preview of page on left and right
I'm using Android's ViewPager . What I want to do is to show a preview of the page on both the left and the right. I've seen where I can use a negative pageMargin to show a preview of the right side.
...
How to grep a text file which contains some binary data?
...
You can use "strings" to extract strings from a binary file, for example
strings binary.file | grep foo
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improve this answer
...
PHP cURL custom headers
...
Spoofing the user agent string sounds like a bad idea to me. Here is what the HTTP spec says.
– starbeamrainbowlabs
Sep 13 '16 at 10:30
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What does !! mean in ruby?
...method to return a boolean. It will detect any kind of truthiness, such as string, integers and what not, and turn it into a boolean.
!"wtf"
# => false
!!"wtf"
# => true
A more real use case:
def title
"I return a string."
end
def title_exists?
!!title
end
This is useful when you w...
How do I get class name in PHP?
In Java, we can get class name with String className = MyClass.class.getSimpleName();
10 Answers
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