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How to reverse a singly linked list using only two pointers?
I wonder if there exists some logic to reverse a singly-linked list using only two pointers.
33 Answers
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iPhone viewWillAppear not firing
I've read numerous posts about people having problems with viewWillAppear when you do not create your view hierarchy just right. My problem is I can't figure out what that means.
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How to check if BigDecimal variable == 0 in java?
I have the following code in Java;
10 Answers
10
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Fetch frame count with ffmpeg
...es anyone know how to fetch the number of total frames from a video file using ffmpeg? The render output of ffmpeg shows the current frame and I need the frame count to calculate the progress in percent.
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IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
When I try to make a simple module in IntelliJ it responds with:
6 Answers
6
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Calculating Distance between two Latitude and Longitude GeoCoordinates
I'm calculating the distance between two GeoCoordinates. I'm testing my app against 3-4 other apps. When I'm calculating distance, I tend to get an average of 3.3 miles for my calculation whereas other apps are getting 3.5 miles. It's a big difference for the calculation I'm trying to perform. Are t...
Check if a string is null or empty in XSLT
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test="categoryName != ''"
Edit: This covers the most likely interpretation, in my opinion, of "[not] null or empty" as inferred from the question, including it's pseudo-code and my own early experience with XSLT. I.e., "What is the equivalent of the following Java?":
!(categoryName =...
Remove all subviews?
When my app gets back to its root view controller, in the viewDidAppear: method I need to remove all subviews.
15 Answers...
Detect current device with UI_USER_INTERFACE_IDIOM() in Swift
What is the equivalent of UI_USER_INTERFACE_IDIOM() in Swift to detect between iPhone and iPad?
17 Answers
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Exiting from python Command Line
To exit from Python command line, I have to type exit(). If I type exit, it says
11 Answers
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