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Iterate through a HashMap [duplicate]
What's the best way to iterate over the items in a HashMap ?
7 Answers
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Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]
I was invited to the kindergarten group of my elder daughter to talk and answer the kids' questions about my profession. There are 26 kids of age 4-6 in the group, plus 3 teachers who are fairly scared of anything related to programming and IT themselves, but bold enough to learn new tricks. I would...
HTML input - name vs. id [duplicate]
...aScript and PHP can see the URL there are workarounds
Is referenced in JS with getElementsByName()
Shares the same namespace as the id attribute
Must begin with a letter
According to specs is case sensitive, but most modern browsers don't seem to follow this
Used on form elements to submit informati...
Can I catch multiple Java exceptions in the same catch clause?
...tch both ExceptionA and ExceptionB in the same block if ExceptionB is inherited, either directly or indirectly, from ExceptionA. The compiler will complain:
Alternatives in a multi-catch statement cannot be related by subclassing
Alternative ExceptionB is a subclass of alternative ExceptionA
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Understanding __get__ and __set__ and Python descriptors
...ly implements __get__, __set__, etc. and is then added to another class in its definition (as you did above with the Temperature class). For example:
temp=Temperature()
temp.celsius #calls celsius.__get__
Accessing the property you assigned the descriptor to (celsius in the above example) calls t...
How is a tag different from a branch in Git? Which should I use, here?
...ing some difficulty understanding how to use tags versus branches in git .
12 Answers
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Best way to simulate “group by” from bash?
...addresses | uniq -c
This will print the count first, but other than that it should be exactly what you want.
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Is it a bad practice to catch Throwable?
Is it a bad practice to catch Throwable ?
14 Answers
14
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Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
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Well, this answer has become its own beast. Many new versions, it was getting stupid long. Many thanks to all of the great many contributors to this answer. But, in order to keep it simple for the masses. I archived all the versions/history of this answe...
About Java cloneable
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The first thing you should know about Cloneable is - don't use it.
It is very hard to implement cloning with Cloneable right, and the effort is not worth it.
Instead of that use some other options, like apache-commons SerializationUtils (deep-clone) or BeanUtils (shallow-clone), or sim...