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Append lines to a file using a StreamWriter

... I assume you are executing all of the above code each time you write something to the file. Each time the stream for the file is opened, its seek pointer is positioned at the beginning so all writes end up overwriting what was there before. You can so...
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How do I parse JSON in Android? [duplicate]

... Android has all the tools you need to parse json built-in. Example follows, no need for GSON or anything like that. Get your JSON: Assume you have a json string String result = "{\"someKey\":\"someValue\"}"; Create a JSONObject: JS...
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Filtering collections in C#

... ints that are > than 7, Where returns an // IEnumerable<T> so a call to ToList is required to convert back to a List<T>. List<int> filteredList = myList.Where( x => x > 7).ToList(); If you can't find the .Where, that means you need to import using System.Linq; at the to...
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Query to count the number of tables I have in MySQL

... Just a note about the use databasename; command. If the database is really big, the command can execute with a long wait time. In that case, login should be done with the option -A, ie: mysql -uroot -p -A, and the command will work fast. – azurecorn Jul 21...
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What's the difference between equal?, eql?, ===, and ==?

...nd the difference between these four methods. I know by default that == calls the method equal? which returns true when both operands refer to exactly the same object. ...
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The necessity of hiding the salt for a hash

...n use something like a user name or phone number to salt the hash. Essentially something that is different for each user but is readily available to us. The other product randomly generates a salt for each user and changes each time the user changes the password. The salt is then encrypted in the...
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What is a software framework? [closed]

...and again for the same type of applications, you create a framework having all those facilities together in one nice packet, hence providing the abstraction for your application and more importantly many applications. share ...
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AES vs Blowfish for file encryption

...was what became AES. Interesting aside: at one point in the competition, all the entrants were asked to give their opinion of how the ciphers ranked. It's probably no surprise that each team picked its own entry as the best -- but every other team picked Rijndael as the second best. That said, th...
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Set keyboard caret position in html textbox

...ion in a Textbox or TextArea with Javascript A generic function that will allow you to insert the caret at any position of a textbox or textarea that you wish: function setCaretPosition(elemId, caretPos) { var elem = document.getElementById(elemId); if(elem != null) { if(elem.crea...
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Android studio add external project to build.gradle

... for multiple DEX files defining the api library, I suspect because it was all part of the same build process and Gradle was smart enough to figure it all out. share | improve this answer |...