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Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)

... out how to send and receive SMS messages. To send SMS messages I had to call the sendTextMessage() and sendMultipartTextMessage() methods of the SmsManager class. To receive SMS messages, I had to register a receiver in the AndroidMainfest.xml file. Then I had to override the onReceive(...
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Chaining multiple filter() in Django, is this a bug?

I always assumed that chaining multiple filter() calls in Django was always the same as collecting them in a single call. 4...
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Advantages of stateless programming?

I've recently been learning about functional programming (specifically Haskell, but I've gone through tutorials on Lisp and Erlang as well). While I found the concepts very enlightening, I still don't see the practical side of the "no side effects" concept. What are the practical advantages of it? ...
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How can I increment a date by one day in Java?

...te useless to add days using DATE, DAY_OF_MONTH or even DAY_OF_YEAR - they all are incremented by modulus. So considering Calendar of 31-12-1970, add(DAY_OF_YEAR, 1) or roll(), however roll() finally calls add(), will give 01-01-1970. I guess the only correct way is to set time with milliseconds....
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Why prefer two's complement over sign-and-magnitude for signed numbers?

...o add them. Two's complement addition is very simple. You add numbers normally and any carry bit at the end is discarded. So they're added as follows: 0010 + 1111 =10001 = 0001 (discard the carry) 0001 is 1, which is the expected result of "2+(-1)". But in your "intuitive" method, adding is m...
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Why is there no SortedList in Java?

...nts in the internal order of the list (aka. insertion order). More specifically it is in the order you've inserted the elements or on how you've manipulated the list. Sorting can be seen as a manipulation of the data structure, and there are several ways to sort the list. I'll order the ways in the...
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Token Authentication vs. Cookies

...tuations. Ember.js, however, deals also with these issues for you; specifically ember-data is built with this in mind. In conclusion, Ember.js is a framework designed for stateful clients. Ember.js does not work like a typical stateless web app where the session, the state and the corresponding cook...
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How to make an AJAX call without jQuery?

How to make an AJAX call using JavaScript, without using jQuery? 23 Answers 23 ...
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How to format strings in Java

...rmat symbols -- but can also differ. See download.oracle.com/javase/6/docs/api/java/util/… for the full syntax. – Andy Thomas Jun 21 '11 at 21:11 54 ...
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What could cause java.lang.reflect.InvocationTargetException?

... You've added an extra level of abstraction by calling the method with reflection. The reflection layer wraps any exception in an InvocationTargetException, which lets you tell the difference between an exception actually caused by a failure in the reflection call (maybe y...