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Liquibase lock - reasons?
...e database helps.
Or you can simply drop the DATABASECHANGELOGLOCK table, it will be recreated.
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Why is this program valid? I was trying to create a syntax error
I'm running ActiveState's 32 bit ActivePerl 5.14.2 on Windows 7. I wanted to mess around with a Git pre-commit hook to detect programs being checked in with syntax errors. (Somehow I just managed to do such a bad commit.) So as a test program I randomly jotted this:
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What's the difference between commit() and apply() in SharedPreferences
I am using SharedPreferences in my android app. I am using both commit() and apply() method from shared preference. When I use AVD 2.3 it shows no error, but when I run the code in AVD 2.1, apply() method shows error.
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Why does C# have break if it's not optional? [duplicate]
When I create a switch statement in VS2008 C# like this (contrived):
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Would it be beneficial to begin using instancetype instead of id?
...at, as far as I can see, replaces id as a return type in -alloc and init .
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Git cherry pick vs rebase
I have recently started working with Git.
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@property retain, assign, copy, nonatomic in Objective-C
..."atomic". (BTW: The book I read is the BNR "iOS Programming" book.)
readwrite vs. readonly
- "readwrite" is the default. When you @synthesize, both a getter and a setter will be created for you. If you use "readonly", no setter will be created. Use it for a value you don't want to ever change after...
Difference between final and effectively final
I'm playing with lambdas in Java 8 and I came across warning local variables referenced from a lambda expression must be final or effectively final . I know that when I use variables inside anonymous class they must be final in outer class, but still - what is the difference between final and ef...
Is it worth hashing passwords on the client side
...t a login system in place, I always compare the MD5 of the given password with its value in the users table on the server side.
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Why does C# forbid generic attribute types?
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Well, I can't answer why it's not available, but I can confirm that it's not a CLI issue. The CLI spec doesn't mention it (as far as I can see) and if you use IL directly you can create a generic attribute. The part of the C# 3 spec that bans it - se...