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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?

... @AndyDangerGagne The Composition Root is a DI pattern - the opposite of Service Locator. From the perspective of the Composition Root, none of types are polymorphic; the Composition Root sees all types as concrete types, and thus, the Liskov Substitution Principle doesn't apply to it. ...
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InputStream from a URL

...ary to validate URL strings. package com.zetcode.web; import com.zetcode.service.WebPageReader; import java.io.IOException; import java.nio.charset.StandardCharsets; import javax.servlet.ServletException; import javax.servlet.ServletOutputStream; import javax.servlet.annotation.WebServlet; import ...
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What are the applications of binary trees?

...rn are used for scheduling processes in many operating systems, Quality-of-Service in routers, and A* (path-finding algorithm used in AI applications, including robotics and video games). Also used in heap-sort. Huffman Coding Tree (Chip Uni) - used in compression algorithms, such as those used by ...
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Python, creating objects

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What are the differences between json and simplejson Python modules?

...n. For loading, simplejson is faster. Since I am currently building a web service, dumps() is more important—and using a standard library is always preferred. Also, cjson was not updated in the past 4 years, so I wouldn't touch it. ...
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TypeError: module.__init__() takes at most 2 arguments (3 given)

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super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh

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SqlAlchemy - Filtering by Relationship Attribute

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Android studio: new project vs new module

... <sourceFolder url="file://$MODULE_DIR$/build/generated/res/google-services/debug" type="java-resource" /> <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/debug" type="java-resource" /> <sourceFolder url="file://$MODULE_DIR$/build/generated/res/resValues...
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Find the PID of a process that uses a port on Windows

My service crash on startup with the classic: 7 Answers 7 ...