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What is Java EE? [duplicate]
...logies that make up Java EE. Frequently, a company will only be using a subset of the Java EE technologies.
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Does a valid XML file require an XML declaration?
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Difference between abstraction and encapsulation?
...s would require such complex program code that they would fail from the outset. Without abstraction, you couldn’t even write a program to print a number: the concept “print” involves countless abstractions (what’s a screen? what’s a character? what’s a pixel? …)
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Unnecessary curly braces in C++?
When doing a code review for a colleague today I saw a peculiar thing. He had surrounded his new code with curly braces like this:
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How to implement a tree data-structure in Java? [closed]
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I would use a Set for the children.
– DPM
Jun 17 '18 at 18:03
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What is the reason for having '//' in Python? [duplicate]
I saw this in someone's code:
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How do you test private methods with NUnit?
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@Quango, in a standard testing setup, the "author" is a production user of the code. Nevertheless, if you don't smell a design problem, you have options for testing non-public methods without altering the class. System.Reflection allows you to access and...
What port is a given program using? [closed]
I want to be able to figure out what port a particular program is using. Are there any programs available online or that come with windows that will tell me which processes are using which ports on my computer?
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Adding a regression line on a ggplot
...ginal dataframe (in your case data).
It would look like this:
# read dataset
df = mtcars
# create multiple linear model
lm_fit <- lm(mpg ~ cyl + hp, data=df)
summary(lm_fit)
# save predictions of the model in the new data frame
# together with variable you want to plot against
predicted_df &...
UTF-8 all the way through
I'm setting up a new server and want to support UTF-8 fully in my web application. I have tried this in the past on existing servers and always seem to end up having to fall back to ISO-8859-1.
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