ternary | 易学教程

Java calling method and using ternary operator and assign in the parameters?

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问题 I was reviewing some code and I came across this: public static doSomething(String myString, String myString2) { //Stuff } public static doAnotherThing(String myString) { return doSomething(myString = myString != null ? myString.toLowerCase(): myString, null) } How is this working exactly?, I know the .toLowerCase resulting string is assigned to myString (yes I know bad practice since you are not supposed to reassign method parameters in fact they should be final), but I am not quite sure how

How to merge two binary numbers into a ternary number

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问题 I have two binary integers, x0 and x1 that are 8 bits (so they span from 0 to 255). This statement is always true about these numbers: x0 & x1 == 0 . Here is an example: bx0 = 100 # represented as 01100100 in binary bx1 = 129 # represented as 10000001 in binary So I need to do the following operation on these numbers. First, interpret these binary representations as ternary (base-3) numbers, as follows: tx0 = ternary(bx0) # becomes 981 represented as 01100100 in ternary tx1 = ternary(bx1) #

Javascript ternary operator and assignment

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问题 I get unexpected result for this simple JavaScript assignment statement: var t = 1 == 1 ? 1 : 0; undefined I would have expected to get 1 assigned to v instead. Same result if you do var t = (1 == 1 ? 1 : 0); undefined Can somebody explain why this does not work as expected? 回答1: The result of evaluating var t = 1 == 1 ? 1 : 0; in, say, the Firebug console will be undefined . However, the value of t will be 1 as expected. Try outputting t after the assignment. Firebug will print the result

Is it possible to fit in a ternary operator as the termination in a for loop?

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问题 So, I just want to know if its possible to slip in any code or a ternary operator inside the termination bit of a for loop. If it is possible, could you provide an example of a ternary operator in a for loop? Thanks! for (initialization; termination; increment) { statement(s) } 回答1: The termination clause in the for statement (if supplied - it's actually optional) can be any expression you want so long as it evaluates to a boolean . It must be an expression , not an arbitrary code block. 回答2:

how to plot 3d ternary plot for three mixtures

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问题 I have tried with your terndemo but I'm unable get a graphical data like you sir. My aim is to present that how, each formulation is responsible for different zetasizes in 3d ternary plot. I tried like editing the file of yours but the result is different. %% Three D plot for ZetaSize of oil, surfactant and cosurfactant isotropic mixture blends experimental = [... 20 60 20 20 50 30 20 40 40 20 30 50 20 20 60 25 60 15 25 50 25 25 40 35 25 30 45 25 20 55 30 60 10 30 50 20 30 40 30 30 30 40 30

C Fast base convert from decimal to ternary

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问题 is there any method of changing decimal number to ternary ? I mean i don't want to use modulo and divide method, i have very big decimal number, something like 128123832812381835828638486384863486.............1237127317237 and so on. Also don't want to use bigints. Is there any method ? 回答1: You don't have to use divide/modulo. Instead, iterate over the input digits, from low to high. For each digit position, first calculate what 1000....000 would be in the output representation (it's 10x the

Understanding ternary operators [closed]

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问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . I have the following code: c.m & 3 || (b |= 2, 65 <= a && 90 >= a ? a = 65 : 48 <= a && 57 >= a ? a = 48 : b & 1 ? 97 <= a && 122 >= a ? a = 65 : 197 ==

C Fast base convert from decimal to ternary

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is there any method of changing decimal number to ternary ? I mean i don't want to use modulo and divide method, i have very big decimal number, something like 128123832812381835828638486384863486.............1237127317237 and so on. Also don't want to use bigints. Is there any method ? You don't have to use divide/modulo. Instead, iterate over the input digits, from low to high. For each digit position, first calculate what 1000....000 would be in the output representation (it's 10x the previous power of 10). Then multiply that result by the digit, and accumulate into the output

python ternary iteration with list comprehension

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Is ternary iteration possible? A simplistic version of what I mean, though this particular example could be done in a better way: c = 0 list1 = [4, 6, 7, 3, 4, 5, 3, 4] c += 1 if 4 == i for i in list1 else 0 A more practical example: strList = ['Ulis', 'Tolus', 'Utah', 'Ralf', 'Chair'] counter = 0 counter += 1 if True == i.startswith('U') for i in strList else 0 return counter Your "practical example" is written as: >>> strList = ['Ulis', 'Tolus', 'Utah', 'Ralf', 'Chair'] >>> sum(1 for el in strList if el.startswith('U')) 2 Your other example (if I understand correctly) is: >>> list1 = [4, 6,

ternary operator without else in C

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问题 I want to use ternary operator without else in C. How do I do it. (a)? b: nothing; something like this. What do I use in nothing part? 回答1: If you are using a ternary operator like that, presumably it could be replaced by: if (a) { b; } which is much, much better. (The intent is clearer, so the code is easier to read, and there will be no performance loss.) However, if you are using the ternary operator as an expression, i.e. printf("%d cat%s", number_of_cats, number_of_cats != 1 ? "s" :