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

...rivate String data; public String getData() {return data;} public void setData(String data) {this.data = data;} private static final DataHolder holder = new DataHolder(); public static DataHolder getInstance() {return holder;} } From the launched activity: String data = DataHolder.getIns...
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efficient way to implement paging

Should I use LINQ's Skip() and Take() method for paging, or implement my own paging with a SQL query? 10 Answers ...
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What do < and > stand for?

I know that the entities < and > are used for < and > , but I am curious what these names stand for. ...
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Xcode + remove all breakpoints

Is there any way to remove all the breakpoints in Xcode? 12 Answers 12 ...
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What are the nuances of scope prototypal / prototypical inheritance in AngularJS?

...childScope has propertyX, then the prototype chain is not consulted. If we set childScope.propertyX, the prototype chain is not consulted. One last scenario: delete childScope.anArray childScope.anArray[1] === 22 // true We deleted the childScope property first, then when we try to access the ...
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Using Kafka as a (CQRS) Eventstore. Good idea?

...med—for a configurable period of time. For example if the retention is set for two days, then for the two days after a message is published it is available for consumption, after which it will be discarded to free up space. Kafka's performance is effectively constant with respect to data s...
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Determine the number of NA values in a column

I want to count the number of NA values in a data frame column. Say my data frame is called df , and the name of the column I am considering is col . The way I have come up with is following: ...
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NPM clean modules

Is there a way to get npm to unbuild all the modules under node_modules? Something like npm rebuild that removes all build artifacts but doesn't rebuild them? ...
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Why would a static nested interface be used in Java?

I have just found a static nested interface in our code-base. 11 Answers 11 ...
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Do I have to Close() a SQLConnection before it gets disposed?

Per my other question here about Disposable objects , should we call Close() before the end of a using block? 8 Answers ...