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Convert list to array in Java [duplicate]

...; list.size(); i++) array[i] = list.get(i); Update: It is recommended now to use list.toArray(new Foo[0]);, not list.toArray(new Foo[list.size()]);. From JetBrains Intellij Idea inspection: There are two styles to convert a collection to an array: either using a pre-sized array (like c.t...
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What exactly does the “u” do? “git push -u origin master” vs “git push origin master”

...e remote or branch, git looks at the branch.<name>.merge setting to know where to pull from. git push -u sets this information for the branch you're pushing. To see the difference, let's use a new empty branch: $ git checkout -b test First, we push without -u: $ git push origin test $ git...
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How can I create tests in Android Studio?

...yClass { public int add(int a, int b) { return a + b; } } Now change the addition_isCorrect() method in the test class to be like the following code (or just add another method with a different name): public class ExampleUnitTest { @Test public void addition_isCorrect() thro...
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javascript scroll event for iPhone/iPad?

... ehm .. actually, window.onscroll is firing on my ipad all the time now, while panning, and after panning, while decelerating. did something change ? – commonpike Apr 21 '15 at 21:18 ...
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Java Reflection: How to get the name of a variable?

...s added to Java 8. Parameter (a special class of local variable) names are now available via reflection. Among other purposes, this can help to replace @ParameterName annotations used by dependency injection containers. shar...
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How to convert DateTime to/from specific string format (both ways, e.g. given Format is “yyyyMMdd”)?

...pic, but for those searching, the link above, "culture-specific format" is now a dead link. Here is one that is current and informative Custom Date and Time Format Strings – user416527 Oct 11 '12 at 16:03 ...
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How to concatenate properties from multiple JavaScript objects

... This is one of the best I could say. Since E6 is now mostly used, Object.assign is the best answer. – Vimalraj Selvam Nov 22 '16 at 10:53 6 ...
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Configure apache to listen on port other than 80

...-default.conf And change the first line as <VirtualHost *: 8079> Now restart sudo service apache2 restart Apache will now listen on port 8079 and redirect to /var/www/html share | impr...
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Passing arguments to C# generic new() of templated type

... from a generic class? I have posted my code in an answer below. I don't know the concrete class internally, as it's a generic class. Is there a way round this. I dont want to use the other suggestion of using property initialiser syntax as that will bypass the logic I have in the constructor ...
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super() in Java

...ed within a constructor to call the constructor of the parent class. OK, now let’s practically implement these points of super(). Check out the difference between program 1 and 2. Here, program 2 proofs our first statement of super() in Java. Program 1 class Base { int a = 100; } class S...