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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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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...
What's the canonical way to check for type in Python?
What is the best way to check whether a given object is of a given type? How about checking whether the object inherits from a given type?
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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
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Choosing between MEF and MAF (System.AddIn)
The Managed Extensibility Framework (MEF) and Managed AddIn Framework (MAF, aka System.AddIn) seem to accomplish very similar tasks. According to this Stack Overflow question, Is MEF a replacement for System.Addin? , you can even use both at the same time.
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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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Reading a plain text file in Java
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I'd also recommend you download and read this wonderful (yet free) book called Thinking In Java
In Java 7:
new String(Files.readAllBytes(...))
(docs)
or
Files.readAllLines(...)
(docs)
In Java 8:
Files.lines(..).forEach(...)
(docs)
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