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What is a stack trace, and how can I use it to debug my application errors?
...ject.Book.getTitle(Book.java:16)
To debug this, we can open up Book.java and look at line 16, which is:
15 public String getTitle() {
16 System.out.println(title.toString());
17 return title;
18 }
This would indicate that something (probably title) is null in the above code.
Exam...
.gitignore after commit [duplicate]
...r committing many files, I am realizing that I need to create .gitignore and exclude .exe , .obj files.
6 Answers
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What's the common practice for enums in Python? [duplicate]
... Python.
The best way I've found to emulate them is by overridding _ str _ and _ eq _ so you can compare them and when you use print() you get the string instead of the numerical value.
class enumSeason():
Spring = 0
Summer = 1
Fall = 2
Winter = 3
def __init__(self, Type):
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
... works. Not to mention you often get "1.5 URLs" (i.e. the old URL remains, and just has the new part added to it (i.e. photo.php?id=... twice, but with different ids). Not to mention that "#!" is also added to facebook-mail URLs, which probably aren't (and shouldn't be) indexable. In any case I find...
How to convert a string Date to long millseconds
...rs posted in 2016 also use the then long outdated classes SimpleDateFormat and Date is a bit more of a mystery to me. java.time, the modern Java date and time API also known as JSR-310, is so much nicer to work with. You can use it on Android through the ThreeTenABP, see this question: How to use Th...
String formatting in Python 3
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"({:d} goals, ${:d})".format(self.goals, self.penalties)
If both goals and penalties are integers (i.e. their default format is ok), it could be shortened to:
"({} goals, ${})".format(self.goals, self.penalties)
And since the parameters are fields of self, there's also a way of doing it using...
C++ blogs that you regularly follow? [closed]
...
C++ Soup! C++ Tips, Tricks, Reviews, and Commentary By Dean Michael Berris.
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edited Feb 1 '12 at 18:50
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IndexOf function in T-SQL
... these are the kinds of things that I'm trying to determine and fix in our database. Mainly people just mis type their domain name. most web redirect back to the real one but the mx records don't forward, and displaying them gets awkward
– DevelopingChris
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How do I convert hex to decimal in Python? [duplicate]
...d8e828ce82b82"
you can use
i = int(s, 16)
to convert it to an integer and
str(i)
to convert it to a decimal string.
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How to implement not with if statement in Ember Handlebars?
... mind that you can insert an {{else}} in between an {{#if}} or {{#unless}} and the closing tag.
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