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I am working with tomcat 6.0, and while I am indexing (not while i am starting tomcat), I have a permgen space error. How could I increase that space?? Thanks Question&Answers:os...

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

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python - Best way to join / merge by range in pandas

I'm frequently using pandas for merge (join) by using a range condition. For instance if there are 2 ... and/or efficient way to perform this action? Question&Answers:os...

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

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linq - How many Include I can use on ObjectSet in EntityFramework to retain performance?

I am using the following LINQ query for my profile page: var userData = from u in db.Users .Include("UserSkills. ... much? Should I do it in some other way? Question&Answers:os...

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

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security - preventing csrf in php

Requiring authentication in GET and POST parameters, not only cookies; Checking the HTTP Referer header; saw ... what? stored information? expected type? Question&Answers:os...

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

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android - Deleting a gallery image after camera intent photo taken

I know this has been asked in many different ways but I still can not seem to delete the gallery image from the ... }else { SetImage(); saveState(); } } Question&Answers:os...

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

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Android- Error:Execution failed for task ':app:transformClassesWithDexForRelease'

The Problem is that i am able to run my app when i change to debug mode but it fails when ... com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionExcept...

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

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java - How to compare two Dates without the time portion?

I would like to have a compareTo method that ignores the time portion of a java.util.Date. I guess there are a ... ways to solve this. What's the simplest way? Question&Answers:os...

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

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How to make a custom activation function with only Python in Tensorflow?

Suppose you need to make an activation function which is not possible using only pre-defined tensorflow building-blocks, what ... [2]. Is there a simpler way? Question&Answers:os...

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

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javascript - Check if event exists on element

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

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ios - Share data between two or more iPhone applications

Is this possible to share data between two applications on the same device? Or can I allow some other application ... a simple example, not a real scenario. Question&Answers:os...

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

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javascript - Browser/HTML Force download of image from src="data:image/jpeg;base64..."

I am generating a image on client side and I display it with HTML like this: <img src="data:image/jpeg; ... Image and then start the download. Thanks a lot! Question&Answers:os...

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

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How to stop C# console applications from closing automatically?

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

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What data type to use for money in Java?

Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...

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

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objective c - Sort NSArray of date strings or objects

I have an NSArray that contains date strings (i.e. NSString) like this: "Thu, 21 May 09 19:10:09 -0700" I ... there on how to sort by the NSDate object. Thanks. Question&Answers:os...

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

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android - How to use JNI bitmap operations for helping to avoid OOM when using large images?

Closed. This question needs details or clarity. It is not currently accepting answers. Question&Answers:os...

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

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python - How to get a random value from dictionary?

How can I get a random pair from a dict? I'm making a game where you need to guess a capital of a country ... like {'VENEZUELA':'CARACAS'} How can I do this? Question&Answers:os...

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

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Windows Bat file optional argument parsing

I need my bat file to accept multiple optional named arguments. mycmd.bat man1 man2 -username alice -otheroption For ... this. Man these bat files are a pain. Question&Answers:os...

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

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internet explorer 8 - Opacity CSS not working in IE8

I'm using CSS to indicate the trigger text for a jQuery slide-down section: i.e. when you hover over ... get opacity modification working in IE8. Any ideas? Question&Answers:os...

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

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python - How to save a pandas DataFrame table as a png

I constructed a pandas dataframe of results. This data frame acts as a table. There are MultiIndexed columns and ... easy with python. All help is appreciated. Question&Answers:os...

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

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python - How to implement an efficient bidirectional hash table?

Python dict is a very useful data-structure: d = {'a': 1, 'b': 2} d['a'] # get 1 Sometimes ... this data-structure? Any official recommend way to do it? Question&Answers:os...

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

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javascript - How does the (function() {})() construct work and why do people use it?

(function() {})() and its jQuery-specific cousin (function($) {})(jQuery) pop up all the time in ... work, and what problems do they solve? Examples appreciated Question&Answers:os...

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

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c# - WPF Binding UI events to commands in ViewModel

I'm doing some refactoring of a simple application to follow MVVM and my question is how do I move a ... ; tagsList.ItemsSource = selectedLabelsView.Groups; } } Question&Answers:os...

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

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javascript - Move the mouse pointer to a specific position?

I'm building a HTML5 game and I am trying to put the mouse cursor over a certain control on a specific event ... always has the same result. Is this possible? Question&Answers:os...

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

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155 views

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node.js - Nodejs - Redirect url

How do I get a node.js server to redirect users to a 404.html page when they enter an invalid url? I did some ... I want to write my server in pure node.js. Question&Answers:os...

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

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c++ - Alternative to vector<bool>

As (hopefully) we all know, vector<bool> is totally broken and can't be treated as a C array. What ... { bool the_bool; }; vector<my_bool> haha_i_tricked_you; Question&Answers:os...

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

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java - What is an object's hash code if hashCode() is not overridden?

If the hashCode() method is not overridden, what will be the result of invoking hashCode() on any object in Java? Question&Answers:os...

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

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74 views

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android - Change Screen Orientation programmatically using a Button

I think this is implementable since screen rotation behaviour can go up to the application level. Question&Answers:os...

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

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mysql - How to Perform an UPSERT so that I can use both new and old values in update part

Stupid but simple example: Assume I have a table 'Item' where I keeps totals of the items that receive. Item_Name ... it in code but is there a better way? Question&Answers:os...

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

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