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How to define @Value as optional
...character. Your example was @Value("${myValue:DEFAULT}").
You are not limited to plain strings as default values. You can use SPEL expressions, and a simple SPEL expression to return null is:
@Value("${myValue:#{null}}")
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Is it possible to use the SELECT INTO clause with UNION [ALL]?
...@chrisVanOpstal, why have you selected top 100? When we select all records it gives error as- "The ORDER BY clause is invalid in views, inline functions, derived tables, subqueries, and common table expressions, unless TOP or FOR XML is also specified. ". Please give some solution.
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How can I format a String number to have commas and round?
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You might want to look at the DecimalFormat class; it supports different locales (eg: in some countries that would get formatted as 1.000.500.000,57 instead).
You also need to convert that string into a number, this can be done with:
double amount = Double.parseDouble(numbe...
What is an alternative to execfile in Python 3?
It seems they canceled in Python 3 all the easy way to quickly load a script by removing execfile()
12 Answers
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Removing first x characters from string?
...follow
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edited Feb 4 '18 at 10:50
answered Aug 4 '12 at 6:45
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Is there a properly tested alternative to Select2 or Chosen? [closed]
...g for an alternative to Select2 that basically provides the same functionality, but includes proper tests.
3 Answers
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Java using enum with switch statement
...ng is converting from the integer to the type-safe enum. Java will not do it automatically. There's a couple of ways you can go about this:
Use a list of static final ints rather than a type-safe enum and switch on the int value you receive (this is the pre-Java 5 approach)
Switch on either a sp...
Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFa
... am totally new to Spring and started to do the official guides from this site:
https://spring.io/guides
27 Answers
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Backbone.js get and set nested object attribute
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While this.model.get("obj1").myAttribute1 is fine, it's a bit problematic because then you might be tempted to do the same type of thing for set, i.e.
this.model.get("obj1").myAttribute1 = true;
But if you do this, you won't get the benefits of Backbone models for myAttrib...
How to draw a rounded Rectangle on HTML Canvas?
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The HTML5 canvas doesn't provide a method to draw a rectangle with rounded corners.
How about using the lineTo() and arc() methods?
You can also use the quadraticCurveTo() method instead of the arc() method.
sh...