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Java generics type erasure: when and what happens?

...raints are etc. But when generics are used, they're converted into compile-time checks and execution-time casts. So this code: List<String> list = new ArrayList<String>(); list.add("Hi"); String x = list.get(0); is compiled into List list = new ArrayList(); list.add("Hi"); String x =...
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How to schedule a function to run every hour on Flask?

...u can use BackgroundScheduler() from APScheduler package (v3.5.3): import time import atexit from apscheduler.schedulers.background import BackgroundScheduler def print_date_time(): print(time.strftime("%A, %d. %B %Y %I:%M:%S %p")) scheduler = BackgroundScheduler() scheduler.add_job(func=p...
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Stateless vs Stateful - I could use some concrete information

...ause same sign up page gives differant results for user creditials...First time sign up will success...second time with same input signup will fail....because webapp has state of user somewhere stored...it may be database or differant storage – feel good and programming ...
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Pythonic way to create a long multi-line string

... @LucasMalor The adjacent strings are a compile-time concatenation. Doesn't using the + operator make the concatenation happen at runtime? – Joshua Taylor Nov 25 '14 at 15:26 ...
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What is the best (and safest) way to merge a Git branch into master?

...st method is we have to use rebase instead of merge (suppose, when in this time, we have solved the branch conflicts). Following is one simple sample, for advanced operations, please refer to http://git-scm.com/book/en/v2/Git-Branching-Rebasing git checkout master git pull git checkout test git pu...
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Eventual consistency in plain English

...eighbor) know the truth (that it's going to rain tomorrow), but in the meantime the client (his wife) came away thinking it is going to be sunny, even though she asked after one or more of the servers (you and me) had a more up-to-date value. As opposed to Strict Consistency / ACID compliance: Yo...
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Java switch statement multiple cases

...a responder said it was not possible. This is fine, and I do this all the time: switch (variable) { case 5: case 6: etc. case 100: doSomething(); break; } share | impr...
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What open source C++ static analysis tools are available? [closed]

...ment for now, but clang does C analysis and is targeted to handle C++ over time. It's part of the LLVM project. Update: While the landing page says "The analyzer is a continuous work-in-progress", it is nevertheless now documented as a static analyzer for both C and C++. Question: How can I run GC...
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Pad a number with leading zeros in JavaScript [duplicate]

... that's correct. It just sets the length property and join iterates length times. Access of an undefined property always returns undefined. See "5" in Array(5) vs "0" in [1] – Benjamin Gruenbaum Jul 24 '14 at 11:56 ...
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Script to get the HTTP status code of a list of urls?

...t) as argument to the curl call -P10: Keep 10 curl processes alive at any time (i.e. 10 parallel connections) Check the write_out parameter in the manual of curl for more data you can extract using it (times, etc). In case it helps someone this is the call I'm currently using: xargs -n1 -P 10 cu...