The dangling else is a problem in programming of parser generators in which an optional else clause in an if–then(–else) statement results in nested conditionals being ambiguous. Formally, the reference context-free grammar of the language is ambiguous, meaning there is more than one correct parse tree. In many programming languages one may write conditionally executed code in two forms: the if-then form, and the if-then-else form – the else clause is optional: if a then sif b then s1 else s2 This gives rise to an ambiguity in interpretation when there are nested statements, specifically whenever an if-then form appears as s1 in an if-then-else form: if a then if b then s else s2 In this example, s is unambiguously executed when a is true and b is true, but one may interpret s2 as being executed when a is false (thus attaching the else to the first if) or when a is true and b is false (thus attaching the else to the second if). In other words, one may see the previous statement as either of the following expressions: if a then (if b then s) else s2if a then (if b then s else s2) The dangling else problem dates to ALGOL 60, and has been resolved in various ways in subsequent languages. In LR parsers, the dangling else is the archetypal example of a shift-reduce conflict. (Wikipedia).
More videos like this online at http://www.theurbanpenguin.com We do quite a lot in this video so if you are new to Java you will get a lot out of this. First we revisit StringBuilder and the reverse method. Then looking at how we can assign non-string values to strings with concatenation
From playlist Java
Seeing that a while loop can do the same thing as a for loop
From playlist Computer Science
Python Programming Tutorial: While Else
While most people tend to use the else statement only with the "if" statement, you can use it with "for," "while," and "except" as well. Sentdex.com Facebook.com/sentdex Twitter.com/sentdex
From playlist Intermediate Python Tutorials
Experimenting and seeing what we can do with strings
From playlist Computer Science
From playlist Week 1 2015 Shorts
Could there be something smaller than a string?
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From playlist Science Unplugged: Quantum Mechanics
Python Programming Tutorial: For else statement
This video tutorial covers the Python For-Else syntax. The else statement is most often used with the "if" statement, though the else statement can be used with many others including the "for," "while," and even "except." Sentdex.com Facebook.com/sentdex Twitter.com/sentdex
From playlist Intermediate Python Tutorials
Dangling modifiers | Syntax | Khan Academy
Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/humanities/grammar/syntax-conventions-of-standard-english/dangling-modifiers-and-parallel-structure/e/dangling-modifiers A modifying word or phrase “dangles” when it doesn’t apply to the w
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From playlist Science Unplugged: String Theory
Robert Wolkow - Atom-Defined Devices, Ultra-Fast Classical Devices, and Diverse Quantum Devices
Recorded 29 November 2022. Robert Wolkow of the University of Alberta presents "Atom-Defined Devices, Ultra-Fast, Ultra-Low Power Classical Devices and Diverse Quantum Devices" at IPAM's Multi-Modal Imaging with Deep Learning and Modeling Workshop. Abstract: Most all atom-defined structure
From playlist 2022 Multi-Modal Imaging with Deep Learning and Modeling
How To Deep Fry a Turkey without Burning Your House Down
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From playlist Food!
Live stream where I (Brooks) wake myself up in the morning with silly side projects and algorithm practice. This stream is scheduled for 7am Mountain Time every weekday. I tweet out shortly before I begin each stream, and definitely if I am going to miss a stream. Currently I am learning
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Sloths: Evolutionary losers or the true king of the jungle? | Lucy Cooke | Big Think
Sloths: Evolutionary losers or the true king of the jungle? New videos DAILY: https://bigth.ink Join Big Think Edge for exclusive video lessons from top thinkers and doers: https://bigth.ink/Edge ---------------------------------------------------------------------------------- Sloths are
From playlist Best Videos | Big Think
Did Einstein Believe in Quantum Mechanics?
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From playlist Science Unplugged: Quantum Mechanics
Please watch: "UNSWTV: Entertaining your curiosity" https://www.youtube.com/watch?v=bQ7UO8nxiL0 -~-~~-~~~-~~-~- SUBSCRIBE now to UNSWTV: http://www.youtube.com/user/unsw?sub_confirmation=1 The next big thing in computing is very small. Professor Michelle Simmons explains quantum computi
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The Rust Book (v2) part 38 - Chapter 10 - Lifetimes
I'm streaming every weekday morning on Twitch at https://www.twitch.tv/brookzerker. Please feel free to stop by and say hi! Links Rust book: https://doc.rust-lang.org/book/second-edition/ My code: https://github.com/BrooksPatton/learning-rust The Learning Wiki: https://github.com/BrooksP
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Watch Stephen Wolfram and teams of developers in a live, working, language design meeting. This episode is about Chemistry Functions in the Wolfram Language.
From playlist Behind the Scenes in Real-Life Software Design
Lecture 10 | New Revolutions in Particle Physics: Basic Concepts
(December 3, 2009) Leonard Susskind gives the tenth lecture of a three-quarter sequence of courses that will explore the new revolutions in particle physics. In this lecture he continues on the subject of quantum field theory, including, the diary equation and Higgs Particles. Leonard S
From playlist Lecture Collection | Particle Physics: Basic Concepts
Basic intro to answer the question, "What's a Loop?" If there's a set of data, (we'll use an array for this example, but it doesn't have to be,) and you want to perform the same manipulation to every piece in that set of data, you can use something called a loop. Loops have some complex
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