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What is the fastest way to compare two sets in Java?
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firstSet.equals(secondSet)
It really depends on what you want to do in the comparison logic... ie what happens if you find an element in one set not in the other? Your method has a void return type so I assume you'll do the necessary work in this method.
M...
Read each line of txt file to new array element
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It's just easy as that:
$lines = explode("\n", file_get_contents('foo.txt'));
file_get_contents() - gets the whole file as string.
explode("\n") - will split the string with the delimiter "\n" - what is ASCII-LF escape for a newline.
But pay attention - check that the file has UNIX-Line...
Shell equality operators (=, ==, -eq)
...nd many other shells) adopted. That's the whole point -- if you have [[ at all, then you can safely assume that all the extensions ksh implemented around it (fnmatch()-style pattern matching, ERE regular expressions with =~, and yes, suppression of string-splitting and filesystem globbing) will be a...
How to do a JUnit assert on a message in a logger
I have some code-under-test that calls on a Java logger to report its status.
In the JUnit test code, I would like to verify that the correct log entry was made in this logger. Something along the following lines:
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How do I convert a String to an int in Java?
...ht want to consider using Long::parseLong instead.
– Allison
Jan 17 '18 at 9:37
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@Allison especi...
How to link to part of the same document in Markdown?
... had to add the --standalone option to the pandoc command to get it to actually output the table of contents itself in the output. Without that switch, it would make the headers into links back to the #toc named anchor, but not actually output the named anchor and list of like itself.
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Unmarshaling nested JSON objects
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in my case the structure of JSON is not actually decided so I can create a struct and when I parse it using map of [string]interface{}, I am having issues for nested elements. What can be done.?
– viveksinghggits
Dec 21 '18 at 10:...
Increment value in mysql update query
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Also, to "increment" string, when update, use CONCAT
update dbo.test set foo=CONCAT(foo, 'bar') where 1=1
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Convert string to nullable type (int, double, etc…)
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+1, Just beat me to it. A small nitpick: the converted value needs to be assigned directly to result, not to result.Value. ie, "result = (T)conv.ConvertFrom(s);".
– LukeH
Apr 21 '09 at 15:33
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How to set a default entity property value with Hibernate
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what about just setting a default value for the field?
private String _foo = "default";
//property here
public String Foo
if they pass a value, then it will be overwritten, otherwise, you have a default.
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