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28 maj 2023 · Reading a book is probably the easiest example. int numPages = myBook.PageCount();for (int page = 1; page <= numPages; page++){ Literacy.ReadPage(myBook.Pages[page]);} This example also naturally displays nestedfor loops. Each page has a set of lines to iterate over, each line has a set of words, and each word has a set of characters.
10 cze 2017 · 6. In most languages, there are many different types of loops. The most common ones seem to be for loop, while loops, and do while loops. What is the best way to illustrate the differences between the loops, not in terms of syntax, but in terms of recommended usage. For example, a while loop with an iterator variables can usually be replaced by ...
22 lut 2018 · The while loop exits when the test condition is false (fails), the until loop exits when the test condition is true (passes). Using that, for a language which lacks the until control statement, the same functionality can be created by using a negative test. Thus until (done) becomes while (notDone), or if the language uses this syntax, while ...
2 paź 2017 · You would know beforehand when the for loop would terminate, this is not clear in a while loop. I basically tell my students "if you know when it ends, it's a for". (Sure, one can construct pathological cases and there is always this for (;;), but for basic understanding this issue is the crucial difference between for and while.) As for examples:
15 cze 2017 · While Lisp traditionally uses only an abstract syntax (parenthesized lists), other successors have a concrete syntax that appeals to many (including this author). Languages like Standard ML and Haskell fit in that category. A functional program is best thought of as an expression, which, if evaluated, produces a value.
24 cze 2017 · Then show them how lists can be iterated over using Python's for loop, but so can strings. That could be a good way to start a discussion about python's data model. You'll need to talk about static/dynamic typing. Explain to the students that while in Java it's variables that are typed, in Python only values have types.
2 wrz 2018 · Knowing the syntax of various concepts, e.g. what a for loop looks like. Knowing when to use the concepts to solve a problem, e.g. to know when to use the for loop. Going to google and copying some code might help with the first skill, but it doesn't help with the second skill at all.
31 paź 2017 · 6) Make them write code on paper, both for practice and for tests. So many students become dependent on their "smart" IDE and don't know their syntax! 7) As a corollary to the previous, emphasize the necessity of memorizing syntax. Whether you understand it or not, you can memorize the syntax of a for loop to iterate through an array.
14 cze 2017 · We're also going to let him use an IDE to build it, so that he can find syntax errors and spot-check himself for silly errors by running the code. The first thing he writes is this: for(z=array[0], z < array, z+1){ z=array[0]; } So, how much can we say that he actually knows? I can forgive that he used commas in his for loop.
15 cze 2017 · For GCSE CS in the UK, students have to analyse, design, code, test and review a solution to a problem. For the design section of their project, students have to plan out the algorithm for each part of their coded solution. They can choose to use pseudocode or flow charts as long as they show the logic and programming constructs that they'll use.
