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Why can tuples contain mutable items?
...ore memory efficient to create because there's no need for overallocation, etc. They're a bit slower than lists for random item access, but faster again for unpacking (at least on my machine). If tuples were mutable, then they wouldn't be as fast for purposes such as these.
Tuples are general-purpos...
Only get hash value using md5sum (without filename)
I use md5sum to generate a hash value for a file.
But i only need to receive the hash value, not the file name.
15 Answers
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How do I use 'git reset --hard HEAD' to revert to a previous commit? [duplicate]
...s where I'm hung up:
That's incorrect. Git only records the state of the files when you stage them (with git add) or when you create a commit. Once you've created a commit which has your project files in a particular state, they're very safe, but until then Git's not really "tracking changes" to y...
What does it mean when git says a file “needs update”?
I can't for the life of me find any decent explanation of the "[file]: needs update" message that git sometimes spits out from time to time. Even the official git FAQ has explaining this marked as a TODO. If someone could explain A) what it means; and B) how to fix it, I would be extremely gratefu...
How do I get a class instance of generic type T?
...t<T> for ArrayList<T> or GenericDAO<T> for DAO<T>, etc.
Pure Java solution
The article Accessing generic types at runtime in Java explains how you can do it using pure Java.
@SuppressWarnings("unchecked")
public GenericJpaDao() {
this.entityBeanType = ((Class) ((Paramete...
Remove Identity from a column in a table
...pt the table to be created; rename everything e.g. 'MyTable2', 'MyIndex2', etc.
Remove the IDENTITY specification.
You should now have two "identical"-ish tables, one full, the other empty with no IDENTITY.
Run ALTER TABLE [Original] SWITCH TO [Original2]
Now your original table will be empty and th...
The specified named connection is either not found in the configuration, not intended to be used wit
...ution and the one that contains your entity framework stuff including edmx files is NOT the solutions's startup project. In this case even if the connection string exists in the EF app.config project, still CLR cannot find it at runtime. For example, if you have a web site and a EF project in your s...
Finding most changed files in Git
How can I show files in Git which change most often?
9 Answers
9
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Bootstrap 3 Glyphicons are not working
... information about it except in the hidden comments on this page. My font files were loading just fine according to Chrome, but the icons weren't displaying properly. I'm making this an answer so it will hopefully help others.
Something was wrong with the font files that I downloaded from Bootstr...
Access to the path is denied
...here' is denied
Read the message carefully. You are trying to save to a file that has the same name as the directory. That cannot work, you can't overwrite a directory filled with files with a single new file. That would cause undiagnosable data loss, "Access to the path is denied" is the file ...