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Clone() vs Copy constructor- which is recommended in java [duplicate]

...rclass since the Beta-release days of the Java compiler*; and it, like all ancient magic, requires the appropriate incantation to prevent the spell from unexpectedly backfiring Prefer a method that copies the object Foo copyFoo (Foo foo){ Foo f = new Foo(); //for all properties in F...
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How to dismiss a Twitter Bootstrap popover by clicking outside?

...-title]' in place of '[data-toggle="popover"]' Caveat: The solution above allows multiple popovers to be open at once. One popover at a time please: Update: Bootstrap 3.0.x, see code or fiddle http://jsfiddle.net/mattdlockyer/C5GBU/2/ $('body').on('click', function (e) { $('[data-toggle="pop...
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Python logging not outputting anything

... @Ben where does it say that? All I can see is "The default level is WARNING, which means that only events of this level and above will be tracked, unless the logging package is configured to do otherwise." – Omri Barel ...
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ActiveRecord: List columns in table from console

... Great! Using Model.columns provides all the information for a table through ActiveRecord. Crucially for me it was the only and easiest way to gain confidence in what my primary key really was at the database level. – nibbex ...
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What is the difference between DAO and Repository patterns?

...ing DAO's, but you wouldn't do the opposite. Also, a Repository is generally a narrower interface. It should be simply a collection of objects, with a Get(id), Find(ISpecification), Add(Entity). A method like Update is appropriate on a DAO, but not a Repository - when using a Repository, chan...
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How can I pretty-print JSON in a shell script?

...ou can use curl http://my_url/ | python -m json.tool For convenience in all of these cases you can make an alias: alias prettyjson='python -m json.tool' For even more convenience with a bit more typing to get it ready: prettyjson_s() { echo "$1" | python -m json.tool } prettyjson_f() {...
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var functionName = function() {} vs function functionName() {}

...); function functionTwo() { console.log("Hello!"); } Historically, function declarations defined within blocks were handled inconsistently between browsers. Strict mode (introduced in ES5) resolved this by scoping function declarations to their enclosing block. 'use strict'; ...
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In C#, can a class inherit from another class and an interface?

...develop a generic component/interface that I can use to write programs for all our devices that will help keep the common things (like connecting, disconnecting, getting firmware) the same for all of our applications. ...
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What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?

...t can be written as "r1..r2". A similar notation "r1...r2" is called symmetric difference of r1 and r2 and is defined as "r1 r2 --not $(git merge-base --all r1 r2)". It is the set of commits that are reachable from either one of r1 or r2 but not from both. Which basical...
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Strip Leading and Trailing Spaces From Java String

... Use String#trim() method or String allRemoved = myString.replaceAll("^\\s+|\\s+$", "") for trim both the end. For left trim: String leftRemoved = myString.replaceAll("^\\s+", ""); For right trim: String rightRemoved = myString.replaceAll("\\s+$", ""); ...