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How do I verify/check/test/validate my SSH passphrase?
I think I forgot the passphrase for my SSH key, but I have a hunch what it might be. How do I check if I'm right?
5 Answer...
In Docker, what's the difference between a container and an image? [duplicate]
...een a container and an image in Docker? In the Get started with Docker tutorial these terms are both used, but I do not understand the difference.
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Method names for getting data [closed]
... getting
all the books associated with an
object, it implies the criteria for the set is
already defined and where they are coming from is a hidden detail.
findBooks(criteria)
is when are trying to find a sub-set
of the books based on parameters to
the method call, this will usually
be overloaded wi...
Why are empty catch blocks a bad idea? [closed]
...ly empty try-catch is a bad idea because you are silently swallowing an error condition and then continuing execution. Occasionally this may be the right thing to do, but often it's a sign that a developer saw an exception, didn't know what to do about it, and so used an empty catch to silence the ...
How can I format my grep output to show line numbers at the end of the line, and also the hit count?
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-n returns line number.
-i is for ignore-case. Only to be used if case matching is not necessary
$ grep -in null myfile.txt
2:example two null,
4:example four null,
Combine with awk to print out the line number after the match:
$ grep -in null myfile....
How to “pull” from a local branch into another one?
...ocal master into local my_branch, but I can't do it. This doesn't seem to work, telling me that master isn't a git repository:
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Struct like objects in Java
...oup projects where there are many programmers using the same code, it's important to avoid side effects. Besides, sometimes it's better to return a copy of field's object or transform it somehow etc. You can mock such methods in your tests. If you create a new class you might not see all possible ac...
Find size of object instance in bytes in c#
For any arbitrary instance (collections of different objects, compositions, single objects, etc)
15 Answers
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Base 64 encode and decode example code
...g in Base64 using the Base64. I am using the following code, but it's not working.
12 Answers
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How to create custom exceptions in Java? [closed]
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To define a checked exception you create a subclass (or hierarchy of subclasses) of java.lang.Exception. For example:
public class FooException extends Exception {
public FooException() { super(); }
public FooException(String message) { super(message); }
public FooExcep...