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How to save/restore serializable object to/from file?

I have a list of objects and I need to save that somewhere in my computer. I have read some forums and I know that the object has to be Serializable . But it would be nice if I can get an example. For example if I have the following: ...
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How to convert linq results to HashSet or HashedSet

I have a property on a class that is an ISet. I'm trying to get the results of a linq query into that property, but can't figure out how to do so. ...
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Transform DateTime into simple Date in Ruby on Rails

... In Ruby 1.9.2 and above they added a .to_date function to DateTime: http://ruby-doc.org/stdlib-1.9.2/libdoc/date/rdoc/DateTime.html#method-i-to_date This instance method doesn't appear to be present in earlier versions like 1.8.7. ...
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SOAP vs REST (differences)

... of the sources of confusion around it, since people tend to call REST any HTTP API that isn't SOAP. Pushing things a little and trying to establish a comparison, the main difference between SOAP and REST is the degree of coupling between client and server implementations. A SOAP client works like ...
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How can I make my custom objects Parcelable?

... Here is a website to create a Parcelable Class from your created class: http://www.parcelabler.com/ share | improve this answer | follow | ...
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Best way to check for “empty or null value”

What is best way to check if value is null or empty string in Postgres sql statements? 10 Answers ...
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How do I drop a foreign key constraint only if it exists in sql server?

... TABLE t DROP CONSTRAINT IF EXISTS tpartnt GO DROP TABLE IF EXISTS t See http://blogs.msdn.com/b/sqlserverstorageengine/archive/2015/11/03/drop-if-exists-new-thing-in-sql-server-2016.aspx share | ...
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When to use generic methods and when to use wild-card?

I am reading about generic methods from OracleDocGenericMethod . I am pretty confused about the comparison when it says when to use wild-card and when to use generic methods. Quoting from the document. ...
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How to install Android SDK Build Tools on the command line?

... also specify various options, for example to force all connections to use HTTP (--no_https), or in order to use proxy server (--proxy_host=address and --proxy_port=port). To check the available options, use the --help flag. On my machine (Mac), the output is as following: alex@mbpro:~/sdk/tools...
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Get the previous month's first and last day dates in c#

... using Fluent DateTime https://github.com/FluentDateTime/FluentDateTime var lastMonth = 1.Months().Ago().Date; var firstDayOfMonth = lastMonth.FirstDayOfMonth(); var lastDayOfMonth = lastMonth.LastDayOfMonth(); ...