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Deleting all records in a database table
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Prefer select whenever you need to use an if expression inside a block, this way you avoid having to chain the compact method to remove nil elements.
– Sebastian Palma
Jan 18 '18 at 17:18
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intellij - spring is not being recognized (Unmapped Spring configuration)
...alog (either by clicking the warning or through file=>project structure
select the modules item in the left hand list
go through and right click on the modules with missing files and select Add=>Spring
in the new tab click the + button
you should now see a list of the xml files. Check the box...
Reset identity seed after deleting records in SQL Server
...any a times we need to just reseed to next Id available
declare @max int
select @max=max([Id])from [TestTable]
if @max IS NULL //check when max is returned as null
SET @max = 0
DBCC CHECKIDENT ('[TestTable]', RESEED,@max)
This will check the table and reset to the next ID.
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Disable XML validation in Eclipse
...ngs (disable the validation for this project): Right-click on the project, select Properties > Validation and uncheck the manual and build for: XML Schema Validator, XML Validator
Right-click on the project and select Validate to make the errors disappear.
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Java String remove all non numeric characters
Trying to remove all letters and characters that are not 0-9 and a period. I'm using Character.isDigit() but it also removes decimal, how can I also keep the decimal?
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switch case statement error: case expressions must be constant expression
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In Eclipse
Move your cursor to the switch keyword and press Ctrl + 1 then select
Convert 'switch' to 'if-else'.
In Android Studio
Move your cursor to the switch keyword and press Alt + Enter then select
Replace 'switch' with 'if'.
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if checkbox is checked, do this
...heckbox').click(function(){
var chk = $(this);
$('p').toggleClass('selected', chk.attr('checked'));
})
in this way your code it's cleaner because you don't have to specify all css properties (let's say you want to add a border, a text style or other...) but you just switch a class
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How do I hide an element on a click event anywhere outside of the element?
... you have other elements inside .myDiv element. For example, if you have a select dropdown inside .myDiv. When you click the select, it will think youre clicking outside the box.
– CodeGodie
Nov 22 '16 at 15:13
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What is the difference between ? and Object in Java generics?
...rwise, specify the types that you need:
public void printAThroughZ(Map<Character, ?> anyCharacterMap) {
for (int i = 'A'; i <= 'Z'; i++)
System.out.println(anyCharacterMap.get((char) i));
}
In the above method, we'd need to know that the Map's key is a Character, otherwise, w...
Hiding the scroll bar on an HTML page
... /* 7 */
These can each be combined with additional pseudo-selectors:
:horizontal – The horizontal pseudo-class applies to any scrollbar pieces that have a horizontal orientation.
:vertical – The vertical pseudo-class applies to any scrollbar pieces that have a vertical orienta...