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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...);
See also
String.trim()
Returns a copy of the string, with leading and trailing whitespace omitted.
regular-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one replaceAll, but this is much less readable than the trim() solution. Nonetheless, it's pro...
How to handle many-to-many relationships in a RESTful API?
Imagine you have 2 entities, Player and Team , where players can be on multiple teams. In my data model, I have a table for each entity, and a join table to maintain the relationships. Hibernate is fine at handling this, but how might I expose this relationship in a RESTful API?
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How can I remove a specific item from an array?
I have an array of numbers and I'm using the .push() method to add elements to it.
97 Answers
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How to get image height and width using java?
Is there any other way besides using ImageIO.read to get image height and width?
13 Answers
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Shell equality operators (=, ==, -eq)
Can someone please explain the difference between = , == and -eq in shell scripting?
4 Answers
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What is the JavaScript >>> operator and how do you use it?
I was looking at code from Mozilla that add a filter method to Array and it had a line of code that confused me.
7 Answers
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What exactly is a Maven Snapshot and why do we need it?
I am a bit confused about the meaning of a Maven Snapshot and why we build one?
13 Answers
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Does Python support short-circuiting?
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Yep, both and and or operators short-circuit -- see the docs.
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Immutable vs Mutable types
... changing what the variable refers to. A mutable type can change that way, and it can also change "in place".
Here is the difference.
x = something # immutable type
print x
func(x)
print x # prints the same thing
x = something # mutable type
print x
func(x)
print x # might print something differe...
Convert tuple to list and back
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@Jimmy that's because list is a debugger command, run p list(...) instead.
– moritz
Jan 24 '19 at 2:26
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