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How to start new activity on button click

...onCreate(Bundle savedInstanceState) { Intent intent = getIntent(); String value = intent.getStringExtra("key"); //if it's a string you stored. } Don't forget to add your new activity in the AndroidManifest.xml: <activity android:label="@string/app_name" android:name="NextActivity"/>...
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Difference between socket and websocket?

...lications that require a permanent connection to its server. On the other hand, plain sockets are more powerful and generic. They run over TCP/IP but they are not restricted to browsers or HTTP protocol. They could be used to implement any kind of communication. No. There is no reason. ...
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How to format a Java string with leading zero?

Here is the String, for example: 21 Answers 21 ...
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node and Error: EMFILE, too many open files

... For when graceful-fs doesn't work... or you just want to understand where the leak is coming from. Follow this process. (e.g. graceful-fs isn't gonna fix your wagon if your issue is with sockets.) From My Blog Article: http://www.blakerobertson.com/devlog/2014/1/11/how-to-determine-whats...
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Set Additional Data to highcharts series

...code in the controller action called by Ajax. public JsonResult ChartData(string dataSource, string locationType, string[] locations, string[] methods, string fromDate, string toDate, string[] lstParams) { List<Dictionary<string, object>> dataResult = new List<Dictionary<strin...
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How to concatenate strings in django templates?

I want to concatenate a string in a Django template tag, like: 12 Answers 12 ...
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Allow user to select camera or gallery for image

...+ File.separator + "MyDir" + File.separator); root.mkdirs(); final String fname = Utils.getUniqueImageFilename(); final File sdImageMainDirectory = new File(root, fname); outputFileUri = Uri.fromFile(sdImageMainDirectory); // Camera. final List<Intent> cameraIntents = ...
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How to provide user name and password when connecting to a network share

...e needs it in a hurry: public class NetworkConnection : IDisposable { string _networkName; public NetworkConnection(string networkName, NetworkCredential credentials) { _networkName = networkName; var netResource = new NetResource() { Scope...
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Can you use a trailing comma in a JSON object?

...item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode): ...
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How to pass a user defined argument in scrapy spider

... Spider arguments are passed in the crawl command using the -a option. For example: scrapy crawl myspider -a category=electronics -a domain=system Spiders can access arguments as attributes: class MySpider(scrapy.Spider): name = 'myspider' def __init__(self,...