Recent questions tagged methods

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methods - What does 'public static void' mean in Java?

What does public static void mean in Java? I'm in the process of learning. In all the examples in the book ... or created. What does this mean? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - What is the difference between new Some::Class and Some::Class->new() in Perl?

Many years ago I remember a fellow programmer counselling this: new Some::Class; # bad! (but why?) Some::Class ... it to be a constructor). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - Why doesn't 2.__add__(3) work in Python?

The integer 2 has an __add__ method: >>> "__add__" in dir(2) True ... but calling it raises a SyntaxError ... invalid syntax Why can't I use the __add__ method? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - What's the difference between .replace and -replace in powershell?

I was under impression that .replace and -replace were the exact same thing, however I found that I ... String, MatchEvaluator, RegexOptions) methods. Thank you Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - How does basic object/function chaining work in javascript?

I'm trying to get the principles of doing jQuery-style function chaining straight in my head. By this I mean: var e = f1 ... gmap(); } } var test = gmap.add(); Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - Converting Integers to Roman Numerals - Java

This is a homework assignment I am having trouble with. I need to make an integer to Roman Numeral converter using a method. ... I"; input -= 1; } return s; } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - Does Java support default parameter values?

I came across some Java code that had the following structure: public MyParameterizedFunction(String param1, int param2 ... this two step syntax is preferable? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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617 views

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methods - Is Java "pass-by-reference" or "pass-by-value"?

I always thought Java uses pass-by-reference. However, I've seen a blog post that claims that Java uses ... distinction they're making. What is the explanation? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - Rust: Reference to a generic parameter doesn't satisfy trait bound

I'm trying to write a simple TCP client in Rust that asks the user whether or not they want their ... 65909797/rust-reference-to-a-generic-parameter-doesnt-satisfy-trait-bound...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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methods - How to stop and re-start java code in mainactivity (QRcode, Android, Vision )

I found a nice code for QRcode/Barcode recognition - it is working fine BUT ! It is working non-stop. ... -stop-and-re-start-java-code-in-mainactivity-qrcode-android-vision...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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604 views

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methods - How to find sum of different combinations of all products in list (python)

I have the following two python lists of numbers: list1 = [0, 2, 5, 10, 20, 50, 100] list2 = [2, ... /how-to-find-sum-of-different-combinations-of-all-products-in-list-python...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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594 views

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methods - Calling renderRows() on Angular Material Table

I'm trying to get my Angular Table to refresh after updating the data used in the table. The ... /stackoverflow.com/questions/49284358/calling-renderrows-on-angular-material-table...