How does random numbers generated using pagemap [closed] - java

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Can anyone kindly explain how does page map works and how its generating the page numbers and versions dynamically in wicket and what is the need to keep track of history of pages and what is the threshold of it?The things about page map regarding how it works which they given in most of forums changes when i try to replicate with the real time example.So,kindly help me.

Take a look:
Apache Wicket - Page maps

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I still can't find a solution for this android studio problem [closed]

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A short time ago the application was working fine for me, but I kept modifying the project and I got this error that I still can't find a solution for, I would like to know if you can help me, thank you very much
enter image description here
enter image description here
That is the problem that comes
That is the problem that comes

How to create a filter/effect for camera app? [closed]

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Actually I made a camera app by learning on YouTube and other platform but now I want to add some real time filter can anyone tell me how to make a filter that works in real time....? I'm newbie 🙂
Anyone ell me how to make a filter that work live
Here the GitHub demo code you can implement it in your code.
CameraView that's you can try.
You can use this one also and Editor Like WhatsApp.

Trying to redirect incoming call to custom made UI in android [closed]

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I'm trying to redirect incoming calls on a custom made UI instead of default Android screen.
I have tried doing it using many ways like using CallScreeningService or InCallService but still not able to figure out the solution.
Can anyone provide a small sample working solution?
User arekolek provided an answer to my question with his own source sample at the end.
I verified it working back when he posted it, and should still work on current Android versions. Hope that helps, I would suggest providing feedback to there if it does.

How to take screenshots of a web page and make a video of them using coding(any language)? [closed]

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I have a table on my web-page with thousands of entries and it shows 20 entries at a time. I want to take screenshots of all the entries page by page and then create a video of them using code. What would be the best language and method to do this task? I know nothing of this thing so I am open to any language like python, Java, Go, etc.
You can user Selenium library in either java or python, it has some tools for doing these operations.
here is an exapmle.

Co- browsing implementation in java [closed]

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Co-Browsing in the context of web browsing, is the joint navigation through the Internet by two or more people accessing the same web pages at the same time.
for more information please have a look at http://en.wikipedia.org/wiki/Cobrowsing
here are some paid alternatives which does this
http://www.livelook.com/co_browsing.asp
http://www.unblu.com/
any help regarding what technology is being used to implement this or technical specifications ?
i am trying to implement co-browsing using java, has any one have prior experience with that if its possible or any existing java library doing the same?
if there is not any solution what approach should i use to implement this.

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