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What's the best way to share data between activities?

I have one activity which is the main activity used throughout the app and it has a number of variables. I have two other activities which I would like to be able to use the data from the first activity. Now I know I can do something like this: ...
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What is a Python egg?

I'm new to Python and am just trying to understand how its packages work. Presumably "eggs" are some sort of packaging mechanism, but what would be a quick overview of what role they play and may be some information on why they're useful and how to create them? ...
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Managing relationships in Laravel, adhering to the repository pattern

...s, that's fine. You're doing fine! I do exactly what you are doing often and find it works great. I often, however, organize repositories around business logic instead of having a repo-per-table. This is useful as it's a point of view centered around how your application should solve your "busine...
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What are the differences among grep, awk & sed? [duplicate]

...ic question, but I am confused about the differences between grep , awk and sed in terms of their role in Unix/Linux system administration and text processing. ...
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What is the difference between a JavaBean and a POJO?

I'm not sure about the difference. I'm using Hibernate and, in some books, they use JavaBean and POJO as an interchangeable term. I want to know if there is a difference, not just in the Hibernate context, but as general concepts. ...
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Why C# implements methods as non-virtual by default?

...rtual by default means that every function in the class can be plugged out and replaced by another, which is not really a good thing. Many people even believe that classes should have been sealed by default. virtual methods can also have a slight performance implication. This is not likely to be th...
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Syntax behind sorted(key=lambda: …)

I don't quite understand the syntax behind the sorted() argument: 9 Answers 9 ...
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Struct like objects in Java

...ee all possible actions. It's like defensive programming - someday getters and setters may be helpful, and it doesn't cost a lot to create/use them. So they are sometimes useful. In practice, most fields have simple getters and setters. A possible solution would look like this: public property St...
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Why do indexes in XPath start with 1 and not 0?

Some colleagues and I were comparing past languages we had programmed in and were talking about our experience with VBScript with its odd features such as 1-based index instead of 0-based indexes like almost every other language has, the reasoning being that it was a language for users (e.g....
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Build an iOS app without owning a mac? [closed]

...ases iPhone/iPad (iOS) app development iPhone/iPad (iOS) app development and Publish to iTunes Store 1. iPhone/iPad (iOS) app development So If you just want to develop iOS apps you don't want to pay anything, You just need Mac + XCode IDE Get Mac Mini or Mac Machine Create Developer Accoun...