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How to check if a string contains only digits in Java [duplicate]
In Java for String 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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Tab key == 4 spaces and auto-indent after curly braces in Vim
... if I enable expandtab, is there a way to actually input the tab character in the text anyway?
– Daniele Segato
Mar 16 '16 at 10:47
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How do you serialize a model instance in Django?
...ou have a completely flat data structure (no ForeignKeys, only numbers and strings in the database, etc.). Otherwise, you should seriously think about the right way to implement this method.
Third, call demjson.JSON.encode(instance) and you have what you want.
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C# List to string with delimiter
Is there a function in C# to quickly convert some collection to string and separate values with delimiter?
2 Answers
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“The given path's format is not supported.”
...ombine instead:
Path.Combine(str_uploadpath, fileName);
which returns a string.
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Parse JSON String into a Particular Object Prototype in JavaScript
I know how to parse a JSON String and turn it into a JavaScript Object.
You can use JSON.parse() in modern browsers (and IE9+).
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Swift - encode URL
If I encode a string like this:
17 Answers
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Create a CSS rule / class with jQuery at runtime
...)
.appendTo("head");
Noticed the back slashes? They are used to join strings that are on new lines. Leaving them out generates an error.
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Python string class like StringBuilder in C#?
Is there some string class in Python like StringBuilder in C#?
8 Answers
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What is the list of valid @SuppressWarnings warning names in Java?
...witch statement (enum case)
nls to suppress warnings relative to non-nls string literals
null to suppress warnings relative to null analysis
restriction to suppress warnings relative to usage of discouraged or
forbidden references
serial to suppress warnings relative to missing serialVersi...