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java - How do you implement a re-try-catch?

Try-catch is meant to help in the exception handling. This means somehow that it will help our system to be ... m asking for is not directly supported by Java. Question&Answers:os...

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

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java - Run jar file in command prompt

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

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How to change value of object which is inside an array using JavaScript or jQuery?

The code below comes from jQuery UI Autocomplete: var projects = [ { value: "jquery", label: "jQuery", desc: " ... like jquery-ui.jquery-ui.desc = .... Question&Answers:os...

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

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python - Pandas DataFrame Groupby two columns and get counts

I have a pandas dataframe in the following format: df = pd.DataFrame([[1.1, 1.1, 1.1, 2.6, 2.5, 3.4 ... And I want to find largest count for each 'col2' value? Question&Answers:os...

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

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python - Converting dictionary to JSON

r = {'is_claimed': 'True', 'rating': 3.5} r = json.dumps(r) file.write(str(r['rating'])) I ... doing wrong? TypeError: string indices must be integers, not str Question&Answers:os...

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

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ios - NSAttributedString background color and rounded corners

I have a question regarding rounded corners and text background color for a custom UIView. Basically, I need to ... important or going about it the wrong way? Question&Answers:os...

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

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android - Programmatically go back to the previous fragment in the backstack

Say I have an activity that has fragments added programmatically: private void animateToFragment(Fragment newFragment, String ... better way to go about this? Question&Answers:os...

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

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xaml - How to get a ListBox ItemTemplate to stretch horizontally the full width of the ListBox?

I want to have the ListItems to extend with their orange background the full width of the Listbox. Currently ... CustomerItemTemplate}"/> </Grid> </Window> Question&Answers:os...

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

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Create aar file in Android Studio

I'd like to create an aar file for my library in Android Studio, i would've gone with a jar option but my ... idea how to create an aar file from a library? Question&Answers:os...

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

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java - Explanation of the get-put principle

I have read O'Reilly book, in that I came to know this get-put principle. Use an extends wildcard when ... ? If possible, please put them hierarchical manner. Question&Answers:os...

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

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How can I resize an image dynamically with CSS as the browser width/height changes?

I wonder how I could make an image resize along with the browser window, here is what I have done so far (or ... live with that, too, but CSS is preferable.) Question&Answers:os...

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

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angularjs - Inject service in app.config

I want to inject a service into app.config, so that data can be retrieved before the controller is called. I ... How to correct setup and inject this service? Question&Answers:os...

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

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javascript - innerText vs innerHTML vs label vs text vs textContent vs outerText

I have a dropdown list which is populated by Javascript. Whilst deciding what should be the default value to ... is anything special about label and outerText? Question&Answers:os...

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

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android - MapView in a Fragment (Honeycomb)

now that the final SDK is out with google apis - what is the best way to create a Fragment with a ... do this? Thanks and regards from Germany, Valentin Question&Answers:os...

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

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c# - How do I specify the exit code of a console application in .NET?

I have a trivial console application in .NET. It's just a test part of a larger application. I'd like to ... of my console application. How do I do this? Question&Answers:os...

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

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r - Turning off some legends in a ggplot

Suppose I have a ggplot with more than one legend. mov <- subset(movies, length != "") (p0 <- ggplot ... argument. How do I specify which legends get displayed? Question&Answers:os...

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

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sql - Are there any disadvantages to always using nvarchar(MAX)?

In SQL Server 2005, are there any disadvantages to making all character fields nvarchar(MAX) rather than specifying ... the field length at the database level) Question&Answers:os...

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

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python - how to import csv data into django models

I have some CSV data and I want to import into django models using the example CSV data: 1;"02-01-101101" ... direction A, color dark green" product.price = 100 Question&Answers:os...

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

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jquery - Count characters in textarea

I want to count characters in a textarea, so I just made: <textarea id="field" onkeyup="countChar(this)"></ ... , that was a newbie handwriting, need a help. Question&Answers:os...

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

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typescript - What is the difference between types String and string?

Does anyone know the difference between String and string in TypeScript? Am I correct in assuming that they ought to ... 'string' when possible. Is that a bug? Question&Answers:os...

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

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r - Change the Blank Cells to "NA"

Here's the link of my data. My target is to assign "NA" to all blank cells irrespective of categorical or numerical ... 5 Complaint NA F NA 6 Moderate NA M NA Question&Answers:os...

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

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dart - Passing data between screens in Flutter

As I'm learning Flutter I've come to navigation. I want to pass data between screens similarly to passing ... / How to pass and get data between Statefulwidget Question&Answers:os...

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

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r - How to remove all whitespace from a string?

So " xx yy 11 22 33 " will become "xxyy112233". How can I achieve this? Question&Answers:os...

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

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shell - How to merge 2 JSON objects from 2 files using jq?

I'm using the jq tools (jq-json-processor) in shell script to parse json. I've got 2 json files and want to ... this command: jq -s '.[].value' file1 file2 Question&Answers:os...

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

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c++ - Why is std::map implemented as a red-black tree?

Why is std::map implemented as a red-black tree? There are several balanced binary search trees (BSTs) out there ... trade-offs in choosing a red-black tree? Question&Answers:os...

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

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322 views

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Add new attribute (element) to JSON object using JavaScript

How do I add new attribute (element) to JSON object using JavaScript? Question&Answers:os...

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

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Setting PayPal return URL and making it auto return?

This is a follow up question to: PHP: Easy way to start PayPal checkout? So, my problem is that I am specifying ... so I can update the database? What is IPN? Question&Answers:os...

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

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How do I kill background processes / jobs when my shell script exits?

I am looking for a way to clean up the mess when my top-level script exits. Especially if I want to ... the background process would die when the script exits. Question&Answers:os...

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

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