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How to reverse a singly linked list using only two pointers?
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Any alternative? No, this is as simple as it gets, and there's no fundamentally-different way of doing it. This algorithm is already O(n) time, and you can't get any faster than that, as you must modify every node.
It looks like your code is on the right track, but it's not...
Why doesn't Java allow generic subclasses of Throwable?
...; e) {
// ignore that
} catch (SomeException<String> e) {
crashAndBurn()
}
Both SomeException<Integer> and SomeException<String> are erased to the same type, there is no way for the JVM to distinguish the exception instances, and therefore no way to tell which catch block s...
Why doesn't Java support unsigned ints?
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This is from an interview with Gosling and others, about simplicity:
Gosling: For me as a language designer, which I don't really count myself as these days, what "simple" really ended up meaning was could I expect J. Random Developer to hold the spec in his h...
How do I save a String to a text file using Java?
...u would to any output stream:
out.println(text);
You'll need exception handling, as ever. Be sure to call out.close() when you've finished writing.
If you are using Java 7 or later, you can use the "try-with-resources statement" which will automatically close your PrintStream when you are done w...
Use of Initializers vs Constructors in Java
So I've been brushing up on my Java skills as of late and have found a few bits of functionality that I didn't know about previously. Static and Instance Initializers are two such techniques.
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How to prevent ENTER keypress to submit a web form?
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[revision 2012, no inline handler, preserve textarea enter handling]
function checkEnter(e){
e = e || event;
var txtArea = /textarea/i.test((e.target || e.srcElement).tagName);
return txtArea || (e.keyCode || e.which || e.charCode || 0) !== 13;
}
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Maven: How to include jars, which are not available in reps into a J2EE project?
...l repository. If you create a script with a Maven invocation for each file and keep it alongside the jars, you (and anyone else with access) can easily install the jars (and associated pom files) to their local repository.
For example:
mvn install:install-file -Dfile=/usr/jars/foo.jar -DpomFile=/u...
Parse JSON in C#
...to parse some JSON data from the Google AJAX Search API. I have this URL and I'd like to break it down so that the results are displayed. I've currently written this code, but I'm pretty lost in regards of what to do next, although there are a number of examples out there with simplified JSON stri...
How to render an ASP.NET MVC view as a string?
...utput two different views (one as a string that will be sent as an email), and the other the page displayed to a user.
15 A...
What are database normal forms and can you give examples? [closed]
...imply normalization, which is a process of organizing columns (attributes) and tables (relations) to reduce data redundancy and improve data integrity. (as written on Wikipedia ).
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