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android - FragmentActivity cannot be resolved to a type

I'm trying the application from this blog. While extending the FragmentActivity, I'm getting the following error: ... </application> </manifest> See Question&Answers more detail:os...

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

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android - Confusion: How does SQLiteOpenHelper onUpgrade() behave? And together with import of an old database backup?

let's assume I have a database table test_table with 2 columns and a corresponding create script in the ... with import/export functionality? See Question&Answers more detail:os...

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

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Maven/Tomcat Projects In Eclipse Indigo/3.7

I'm trying out the next version of Eclipse using the latest milestone build and I'm having an issue getting my ... t spotted the right one yet. See Question&Answers more detail:os...

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

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d3.js - D3 Key Function

As readers might gather from the following...I am fairly new to D3....I am experimenting at the moment ... mysterious key function does.... See Question&Answers more detail:os...

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

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javascript - Classical Vs prototypal inheritance

After reading about both, I just have curiosity, how programming community uses this? In what situation which? See Question&Answers more detail:os...

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

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algorithm - Python Integer Partitioning with given k partitions

I'm trying to find or develop Integer Partitioning code for Python. FYI, Integer Partitioning is representing a given integer n ... = 2 + 2 + 1 See Question&Answers more detail:os...

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

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algorithm to check a connect four field

I'm wondering what's the best way to check for a winner on a connect four field. I'm interested in what ... and the algorithm seems neat to me. See Question&Answers more detail:os...

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

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html - Difference between "visibility:collapse" and "display:none"

What is the difference between visibility:collapse and display:none? See Question&Answers more detail:os...

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

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How to force MySQL to take 0 as a valid auto-increment value

Long story short, I have a SQL file that I want to import as a skel style file, so this will be done ... want to insert 0 into this field? See Question&Answers more detail:os...

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

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Android - Hide all shown Toast Messages

How do I remove all toast messages currently displayed? In my App, there is a list, when a user clicks on an ... It shouldn't be like that :) See Question&Answers more detail:os...

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

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spring - What is difference between singleton and prototype bean?

i'm new to spring and i read this : Basically a bean has scopes which defines their existence on the application ... is the "object instance" . See Question&Answers more detail:os...

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

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python - How do I extend the Django Group model?

Is there a way to extend the built-in Django Group object to add additional attributes similar to the way ... alternative approach I can take? See Question&Answers more detail:os...

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

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python - Is there a way to do more work after a return statement?

I was a bit curious if I could do more work in a function after returning a result. Basically I'm ... worked" #do maintenance processing now. See Question&Answers more detail:os...

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

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asp.net mvc - MVC Bundling and CSS relative URLs

MVC's bundling is returning the wrong URL in CSS images when using CssRewriteUrlTransform: I have an intranet ... to the right location? See Question&Answers more detail:os...

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

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multithreading - Create threads in java to run in background

I want to spawn a Java thread from my main java program and that thread should execute separately without ... it should be seamless.. See Question&Answers more detail:os...

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

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api - Yahoo! Finance CSV file will not return Dow Jones (^DJI)

I am trying to retrieve market data from Yahoo! finance and the script has worked fine for years, but recently ... the same issues? Thanks. See Question&Answers more detail:os...

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

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Copy an entity in Google App Engine datastore in Python without knowing property names at 'compile' time

In a Python Google App Engine app I'm writing, I have an entity stored in the datastore that I need to ... at all what I want. Suggestions? See Question&Answers more detail:os...

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

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android - How to retrieve HTML content from WebView (as a string)

How do I retrieve all HTML content currently displayed in a WebView? I found WebView.loadData() but I ... Javascript interface in WebView). See Question&Answers more detail:os...

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

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c# - Wait for file to be freed by process

How do I wait for the file to be free so that ss.Save() can overwrite it with a new one? If I run ... , ImageFormat.Jpeg); } return fileName; } See Question&Answers more detail:os...

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

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objective c - How to use a 'Container View' in iOS?

I have noticed the UI Component in XCode: Container View. Based on the description provided I would like to ... be appreciated too. Cheers. See Question&Answers more detail:os...

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

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go - Calling a template with several pipeline parameters

In a Go template, sometimes the way to pass the right data to the right template feels awkward to me. Calling ... parameter list (not great). See Question&Answers more detail:os...

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

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Spring boot and SQLite

I am trying to use SQLite with a Spring Boot app. I am aware of the awesome support in Spring Boot with ... with using Spring Boot and SQLite?? See Question&Answers more detail:os...

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

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What does the slice() function do in Python?

First of all, I'd like to clarify the question: it's about the slice() function, not slices of lists or ... )? Any examples will be appreciated. See Question&Answers more detail:os...

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

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Is it possible to programmatically compile java source code in memory only?

I have found many references explaining how to programmatically compile a Java class using the JavaCompiler class: ... Thanks for any help. See Question&Answers more detail:os...

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

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c++ - What is a buffer overflow and how do I cause one?

I have heard about a buffer overflow and I would like to know how to cause one. Can someone show me a small ... (And what they are used for?) See Question&Answers more detail:os...

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

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java - Spring 3.1 JSON date format

I am using annotated Spring 3.1 MVC code (spring-mvc) and when i send date object through the @RequestBody the ... i alter the existing mapper? See Question&Answers more detail:os...

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

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javascript - jQuery Screen Resolution Height Adjustment

In order to better balance out a page I am working on I would like to find a way to increase the ... these dimensions with jQuery or Javascript? See Question&Answers more detail:os...

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

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When to use primitive and when reference types in Java

In which case should you use primitive types(int) or reference types (Integer)? This question sparked my curiosity. See Question&Answers more detail:os...

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

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