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How to detect a loop in a linked list?
...e algorithm:
boolean hasLoop(Node first) {
if(first == null) // list does not exist..so no loop either
return false;
Node slow, fast; // create two references.
slow = fast = first; // make both refer to the start of the list
while(true) {
slow = slow.next; ...
Use IntelliJ to generate class diagram
How do I get IntelliJ 10.5 (on the Mac) to generate a class diagram showing all of the classes in my project? I'm sure I'm overlooking something obvious, but I can only get the "Show Diagram" feature to show one class at a time. (I also figured out how to add additional classes, but again, only on...
php check if array contains all array values from another array
...rison: "== TRUE if $a and $b have the same key/value pairs.", so the order doesn't even matter (use === for that)
– Wrikken
Oct 16 '13 at 21:24
2
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How to create a printable Twitter-Bootstrap page
...e="text/css" media="print" href="bootstrap.min.css"> and didn't need to do anything else. Worked like a charm. Thanks!
– Jay Q.
Sep 6 '12 at 15:41
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How can I make git ignore future revisions to a file?
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What is done with their changes is controlled by them. In other words, they would have to set skip-worktree on the file in their repo if they did not want their changes to be pushed. If it is a file that is meant to be sent out t...
Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
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is+cast is enough to trigger a "Do not cast unnecessarily" warning from FxCop: msdn.microsoft.com/en-us/library/ms182271.aspx That should be enough reason to avoid the construct.
– David Schmitt
Jan 27 '10 at 16:47
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How to find the size of an array in postgresql
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As vyegorov mentioned, array_length will do the trick. Or if you know that the array is 1-dimensional (which is likely) and are running PostgreSQL 9.4 or higher, you can use cardinality:
SELECT cardinality(id) FROM example;
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What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]
...oal was to classify hand-written digits, ten support vector machines would do. Each support vector machine would recognize exactly one digit, and fail to recognize all others. Since each handwritten digit cannot be meant to hold more information than just its class, it makes no sense to try to solve...
Should methods that throw RuntimeException indicate it in method signature?
...ether the exception has to be explicitly handled.
Declaring it in the javadoc is a better approach since it allows someone to handle it if they think it is necessary, but knowing they can ignore it if they want. This makes the separation between checked and unchecked clear.
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Cmake vs make sample codes?
...ple code for Makefile s ( make ) and CMakeLists.txt ( cmake ) that both do the same thing (the only difference being that one is written in make and the other in cmake ).
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