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Java switch statement: Constant expression required, but it IS constant

...ice.Choice1; switch(ch) { case Choice1: System.out.println("Choice1 selected"); break; case Choice2: System.out.println("Choice2 selected"); break; case Choice3: System.out.println("Choice3 selected"); break; } } } Source: Switch statement with enum ...
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How to get a value from a cell of a dataframe?

... Most answers are using iloc which is good for selection by position. If you need selection-by-label loc would be more convenient. For getting a value explicitly (equiv to deprecated df.get_value('a','A')) # this is also equivalent to df1.at['a','A'] In [55]: df1....
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Paste in insert mode?

... where register can be: + for the clipboard, * for the X clipboard (last selected text in X), " for the unnamed register (last delete or yank in Vim), or a number of others (see :h registers). Ctrl-R {register} inserts the text as if it were typed. Ctrl-R Ctrl-O {register} inserts the text wit...
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How do I use LINQ Contains(string[]) instead of Contains(string)

...re that the query can be used with more providers. var uids = arrayofuids.Select(id => int.Parse(id)).ToList(); var selected = table.Where(t => uids.Contains(t.uid)); share | improve this a...
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Case sensitive Cmd+D in Sublime Text 2

In ST2 ⌘+D expands the selection to the next word, using case insensitive matching. Is it possible to match the word case sensitive? ...
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MySQL integer field is returned as string in PHP

... When you select data from a MySQL database using PHP the datatype will always be converted to a string. You can convert it back to an integer using the following code: $id = (int) $row['userid']; Or by using the function intval(): ...
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iOS - Dismiss keyboard when touching outside of UITextField

... the view, and then call resign first responder on the UITextField on it's selector. The code: In viewDidLoad UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)]; [self.view addGestureRecognizer:tap]; In dismissKeyboard: -(void)...
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How to get element by innerText

... This should be the top answer. XPath can do much more, like select node by attribute value, select node sets ... Simple intro: w3schools.com/xml/xpath_syntax.asp – Timathon Dec 2 '17 at 2:43 ...
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Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?

...e - which are typically implemented internally using b-trees (allowing for selecting, sorting or ranges starting from left most column) or hash tables (allowing for selection starting from left most column). Where the other index types are general-purpose, a FULLTEXT index is specialised, in that it...
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How do I do string replace in JavaScript to convert ‘9.61’ to ‘9:61’?

... $("#text").val(); // value = 9.61 use $("#text").text() if you are not on select box... value = value.replace(".", ":"); // value = 9:61 // can then use it as $("#anothertext").val(value); Updated to reflect to current version of jQuery. And also there are a lot of answers here that would best ...