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How to define custom exception class in Java, the easiest way?
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No, you don't "inherit" non-default constructors, you need to define the one taking a String in your class. Typically you use super(message) in your constructor to invoke your parent constructor. For example, like this:
public class MyException extends Exception {
public MyException(String me...
How do you concatenate Lists in C#?
...rguments are invalid, you don't have a using statement for System.Linq, or one of them is not an IEnumerable<T>
– Jonathan Rupp
Jun 11 '15 at 17:28
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How to convert timestamps to dates in Bash?
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One-liner: date -d @$(date -u +%s)
– Mike Atlas
Jan 5 '16 at 17:30
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Better techniques for trimming leading zeros in SQL Server?
... types, if it is within your power to do so.
– reedstonefood
Nov 3 '15 at 15:36
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Preventing form resubmission
Page one contains an HTML form. Page two - the code that handles the submitted data.
12 Answers
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What is the __DynamicallyInvokable attribute for?
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It is undocumented, but it looks like one of the optimizations in .NET 4.5. It appears to be used to prime the reflection type info cache, making subsequent reflection code on common framework types run faster. There's a comment about it in the Reference Source...
Default value of 'boolean' and 'Boolean' in Java
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I think one could mention Boolean is Object, that would make the first line meaning obvious. This sounds pretty basic, but for someone asking a basic question like this it may help.
– Suma
Jul 3...
Generate table relationship diagram from existing schema (SQL Server) [closed]
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One should be able to see all the existing relationships as well once you add all the necessary tables.
– Vishwas S L
Aug 29 '18 at 7:17
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How to access cookies in AngularJS?
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This answer has been updated to reflect latest stable angularjs version. One important note is that $cookieStore is a thin wrapper surrounding $cookies. They are pretty much the same in that they only work with session cookies. Although, this answers the original question, there are other solution...
How do I create directory if none exists using File class in Ruby?
...ts (it just does nothing) so this solution can be compressed into this can one-liner plus a require statement: FileUtils.mkdir_p(File.dirname(some_path))
– Eureka
Sep 27 '12 at 10:43
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