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Show hide fragment in android

I am developing application which contains 2 fragments and i want to show hide according to my need. Following code has simple example of my problem. This simple Fragmentactivity contains 1 button and one listfragment. ...
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Any good boolean expression simplifiers out there? [closed]

I was refactoring old code and encountered several IF conditions that were way too complex and long and I'm certain they can be simplified. My guess is that those conditions grew so much because of later modifications. ...
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SQL Server reports 'Invalid column name', but the column is present and the query works through mana

...ables with the same name. One is owned by the schema 'dbo' (dbo.PerfDiag), and the other is owned by the default schema of the account used to connect to SQL Server (something like userid.PerfDiag). When you have an unqualified reference to a schema object (such as a table) — one not qualified by...
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A proper wrapper for console.log with correct line number?

I'm now developing an application, and place a global isDebug switch. I would like to wrap console.log for more convenient usage. ...
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Can dplyr package be used for conditional mutating?

... TRUE ~ NA_real_)) Added - arithmetic/na_if If the values are numeric and the conditions (except for the default value of NA at the end) are mutually exclusive, as is the case in the question, then we can use an arithmetic expression such that each term is multiplied by the desired result using...
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Why is a 3-way merge advantageous over a 2-way merge?

Wikipedia says a 3-way merge is less error-prone than a 2-way merge, and often times doesn't need user intervention. Why is this the case? ...
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Difference between JSONObject and JSONArray

... When you are working with JSON data in Android, you would use JSONArray to parse JSON which starts with the array brackets. Arrays in JSON are used to organize a collection of related items (Which could be JSON objects). For example: [{"name":"item 1"},{"name": "...
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Difference between events and delegates and its respective applications [closed]

...over delegates, other than being syntactical sugar. Perhaps I am misunderstanding, but it seems that event is just a placeholder for delegate. ...
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Is it possible to set a number to NaN or infinity?

... On python >= 2.6, you can just use math.isnan() and math.isinf() – Agos May 9 '11 at 10:21 10 ...
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Swift double to string

...ntrolled with the printf formatting options, see: String Format Specifiers and printf(3). – zaph Mar 21 '15 at 13:14 ...