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Update ViewPager dynamically?

...r destroys a fragment after it's been displayed the first time. I don't recommend the setTag() and findViewWithTag() workaround provided in the post you linked. As you've discovered, using setTag() and findViewWithTag() doesn't work with fragments, so it's not a good match. The right solution is t...
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Why is there no multiple inheritance in Java, but implementing multiple interfaces is allowed?

...ss, you have to override this method in the class itself, see: docs.oracle.com/javase/tutorial/java/IandI/… – bobbel May 14 '14 at 12:29 7 ...
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How can I check for “undefined” in JavaScript? [duplicate]

...guaranteed to return a string: if (typeof myVar !== 'undefined') Direct comparisons against undefined are troublesome as undefined can be overwritten. window.undefined = "foo"; "foo" == undefined // true As @CMS pointed out, this has been patched in ECMAScript 5th ed., and undefined is non-wr...
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What exactly do “u” and “r” string flags do, and what are raw string literals?

...ich a backslash, \, is taken as meaning "just a backslash" (except when it comes right before a quote that would otherwise terminate the literal) -- no "escape sequences" to represent newlines, tabs, backspaces, form-feeds, and so on. In normal string literals, each backslash must be doubled up to ...
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What is the role of the bias in neural networks? [closed]

...-input, 1-output network that has no bias: The output of the network is computed by multiplying the input (x) by the weight (w0) and passing the result through some kind of activation function (e.g. a sigmoid function.) Here is the function that this network computes, for various values of w0: ...
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Difference between wait() and sleep()

... is any other thread which 'waits' on this object. wait/notify is used for communication, while sleep is used for, ehm, sleeping. – Peter Štibraný Jun 24 '09 at 7:01 28 ...
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Difference between Inheritance and Composition

Are Composition and Inheritance the same? If I want to implement the composition pattern, how can I do that in Java? 17 Ans...
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When should I use the “strictfp” keyword in java?

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Inheritance vs. Aggregation [closed]

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What are the Ruby Gotchas a newbie should be warned about? [closed]

...in a boolean expression. Versions prior to 1.9 lack a character data type (compare to C, which provides type char for characters). This may cause surprises when slicing strings: "abc"[0] yields 97 (an integer, representing the ASCII code of the first character in the string); to obtain "a" use "abc"...