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Difference between Inheritance and Composition

...rectly), and could lead to some confusion. Interface implementation is a form of inheritance... when you implement an interface, you're not only inheriting all the constants, you are committing your object to be of the type specified by the interface; it's still an "is-a" relationship. If a car im...
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What is MOJO in Maven?

...sorry you don't have more upvotes! The other answers don't give any more information than what is in the documentation already. – marcv81 Jan 7 '15 at 11:52 1 ...
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How to display Base64 images in HTML?

...base64 encoding $imageData = base64_encode(file_get_contents($image)); // Format the image SRC: data:{mime};base64,{data}; $src = 'data: '.mime_content_type($image).';base64,'.$imageData; // Echo out a sample image echo '<img src="'.$src.'">'; ...
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Entity Framework - Start Over - Undo/Rollback All Migrations

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Java Regex Capturing Groups

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Use StringFormat to add a string to a WPF XAML binding

...ffectively what you need: <TextBlock Text="{Binding CelsiusTemp, StringFormat={}{0}°C}" /> share | improve this answer | follow | ...
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How to check if an object is nullable?

...s question has already been answered long ago. To check if a type is some form of Nullable<> using reflection, you first have to convert your constructed generic type, for example Nullable<int>, into the generic type definition, Nullable<>. You can do that by using the GetGenericT...
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Converting a column within pandas dataframe from int to string

...() and apply() ) do not preserve NULL values in either the nan or the None form. import pandas as pd import numpy as np df = pd.DataFrame([None,'string',np.nan,42], index=[0,1,2,3], columns=['A']) df1 = df['A'].astype(str) df2 = df['A'].apply(str) print df.isnull() print df1.isnull() print df2....
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What is the difference among col-lg-*, col-md-* and col-sm-* in Bootstrap?

...table as you designed it rather than in degraded (single or wrapped column form). Obviously this still depends on the content of the columns and that's the whole point. If the page attempts to display multiple columns of large data, side by side on a small screen then the columns will naturally wra...
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Get nth character of a string in Swift programming language

...Scalars is a collection of Unicode scalars. Use this API when you are performing low-level manipulation of character data. String.characters is a collection of extended grapheme clusters, which are an approximation of user-perceived characters. Note that when processing strings tha...