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How to check if a string contains only digits in Java [duplicate]
...ring class there is a method called matches, how to use this method to check if my string is having only digits using regular expression. I tried with below examples, but both of them returned me false as result.
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How to get a specific output iterating a hash in Ruby?
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hash.each do |key, array|
puts "#{key}-----"
puts array
end
Regarding order I should add, that in 1.8 the items will be iterated in random order (well, actually in an order defined by Fixnum's hashing function), while in 1.9 it will ...
Cast Object to Generic Type for returning
...blic T cast(Object o)
This can also be used for array types. It would look like this:
final Class<int[]> intArrayType = int[].class;
final Object someObject = new int[]{1,2,3};
final int[] instance = convertInstanceOfObject(someObject, intArrayType);
Note that when someObject is passed to...
What is Lazy Loading?
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It's called lazy loading because, like a lazy person, you are putting off doing something you don't want to. The opposite is Eager Loading, where you load something right away, long before you need it.
If you are curious why people might use lazy loading, con...
Search All Fields In All Tables For A Specific Value (Oracle)
...this statement below
to find an appropriate column based on
what I think it should be named but it
returned no results.*
SELECT * from dba_objects WHERE
object_name like '%DTN%'
A column isn't an object. If you mean that you expect the column name to be like '%DTN%', the query you want is...
What's the difference between a file descriptor and file pointer?
I want to know the difference between a file descriptor and file pointer.
9 Answers
9
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How can I make a div not larger than its contents?
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The solution is to set your div to display: inline-block.
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SQL exclude a column using SELECT * [except columnA] FROM tableA?
We all know that to select all columns from a table, we can use
41 Answers
41
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Catch browser's “zoom” event in JavaScript
...it using the tools of the above post. The problem is you're more or less making educated guesses on whether or not the page has zoomed. This will work better in some browsers than other.
There's no way to tell if the page is zoomed if they load your page while zoomed.
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How do I get an ISO 8601 date on iOS?
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tig
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answered Apr 27 '13 at 17:20
rmaddyrmaddy
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