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c++ - What's the most efficient way to erase duplicates and sort a vector?

I need to take a C++ vector with potentially a lot of elements, erase duplicates, and sort it. I currently ... (perhaps more efficient) way to do all this? Question&Answers:os...

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

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216 views

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sorting - Why is there no SortedList in Java?

In Java there are the SortedSet and SortedMap interfaces. Both belong to the Java Collections framework and provide a ... idea why it is designed like that? Question&Answers:os...

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

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56 views

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How do I send a file as an email attachment using Linux command line?

I've created a script that runs every night on my Linux server that uses mysqldump to back up each of my ... data and often have word-wrapping issues etc. Question&Answers:os...

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

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Android: How do I get string from resources using its name?

I would like to have 2 languages for the UI and separate string values for them in my resource file resvaluesstrings.xml: ... . Why does not it work in my case? Question&Answers:os...

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

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mysql - Reorder / reset auto increment primary key

I have a MySQL table with an auto increment primary key. I deleted some rows in the middle of the table. Now I have, for ... a 16, and so on. How can I do it? Question&Answers:os...

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

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882 views

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ios - dyld: Library not loaded: @rpath/libswiftCore.dylib

I am trying to run a Swift app on my iPhone 4s. It works fine on the ... /Bundle/Application/LONGSERIALNUMBER/APPLICATION_NAME/Frameworks/libswiftCore.dylib Question&Answers:os...

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

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regex - How can I extract a number from a string in JavaScript?

I have a string in JavaScript (e.g #box2) and I just want the 2 from it. I tried: var thestring = ... to accommodate for any length number attached on the end. Question&Answers:os...

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

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How do I work with dynamic multi-dimensional arrays in C?

Does someone know how I can use dynamically allocated multi-dimensional arrays using C? Is that possible? Question&Answers:os...

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

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What do numbers starting with 0 mean in python?

When I type small integers with a 0 in front into python, they give weird results. Why is this? >>> 011 9 >>> ... still integers: >>> type(027) <type 'int'> Question&Answers:os...

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

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html - Transparent half circle cut out of a div

I would like to make a transparent cut out half circle shape using only CSS3. The only requirement is that ... let the background show through. Desired shape : Question&Answers:os...

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

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224 views

1 answer

oop - Organize prototype javascript while perserving object reference and inheritance

I have built a large application using JavaScript prototype and inheritance. But I am having a hard time organizing my ... can I work around the "this" value ? Question&Answers:os...

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

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c# - What is the best way to iterate over a dictionary?

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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132 views

1 answer

Force "git push" to overwrite remote files

I want to push my local files, and have them on a remote repo, without having to deal with merge conflicts. I just ... remote one. How can I do this with Git? Question&Answers:os...

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

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java - How to fix the Hibernate "object references an unsaved transient instance - save the transient instance before flushing" error

I receive following error when I save the object using Hibernate object references an unsaved transient instance - save the transient instance before flushing Question&Answers:os...

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

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language features - Are there legitimate uses for JavaScript's "with" statement?

Alan Storm's comments in response to my answer regarding the with statement got me thinking. I've seldom ... Where have you found the with statement useful? Question&Answers:os...

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

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172 views

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How can I send an email by Java application using GMail, Yahoo, or Hotmail?

Is it possible to send an email from my Java application using a GMail account? I have configured my company ... using Hotmail, Yahoo or GMail are acceptable. Question&Answers:os...

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

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161 views

1 answer

java - "Invalid signature file" when attempting to run a .jar

My java program is packaged in a jar file and makes use of an external jar library, bouncy castle. My code ... could offer some help, I would be obliged. Question&Answers:os...

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

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85 views

1 answer

How can I hash a password in Java?

I need to hash passwords for storage in a database. How can I do this in Java? I was hoping to ... to the stored hash password with their account information. Question&Answers:os...

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

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274 views

1 answer

javascript - onKeyPress Vs. onKeyUp and onKeyDown

What is the difference between these three events? Upon googling I found that: The onKeyDown event is triggered when the ... , can someone clear this up for me? Question&Answers:os...

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

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266 views

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Any way to replace characters on Swift String?

I am looking for a way to replace characters in a Swift String. Example: "This is my string" I would like to ... This+is+my+string". 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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255 views

1 answer

javascript - How to load external scripts dynamically in Angular?

I have this module which componentize the external library together with additional logic without adding the <script> ... 2 to load a script dynamically? Question&Answers:os...

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

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274 views

1 answer

Python/Matplotlib - Is there a way to make a discontinuous axis?

I'm trying to create a plot using pyplot that has a discontinuous x-axis. The usual way this is drawn is that ... end up on the same graph in the end. Question&Answers:os...

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

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86 views

1 answer

android button selector

This is a button selector such that when normal it appears red, when pressed it appears grey. I would like to ask how ... :radius="5dp" /> </shape> </item> Question&Answers:os...

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

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373 views

1 answer

unix - Replace a string in shell script using a variable

I am using the below code for replacing a string inside a shell script. echo $LINE | sed -e 's/12345678/ ... that variable. Could anybody tell what went wrong? Question&Answers:os...

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

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450 views

1 answer

css - CSS3 background image transition

I'm trying to make a "fade-in fade-out" effect using the CSS transition. But I can't get this to work with the ... ; }? Take a look: http://jsfiddle.net/AK3La/ Question&Answers:os...

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

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332 views

1 answer

jsf - @ViewScoped calls @PostConstruct on every postback request

This doesn't seem right. I was doing some cleanup of my code and I just noticed this. Every ajax request is ... . Only after a complete page reload by GET. Question&Answers:os...

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

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111 views

1 answer

java - Dynamic JComboBoxes

I have following data (String): Course1: A1 Course1: A2 Course2: B1 Course2: B2 Course2: B3 Course2: B4 ... in JComboBox2. How to implement this? Many Thanks. Question&Answers:os...

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

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151 views

1 answer

jquery - Set class validation for dynamic textbox in a table

I have a table that have a row of dynamic textbox. Example below: I add the row in the table by clicking ... issue. Really appreciate your guys help. Thank you. Question&Answers:os...

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

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