Run into "Paused: Press any key"

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Shinuo Weng 2021-6-10

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https://ww2.mathworks.cn/matlabcentral/answers/853400-run-into-paused-press-any-key

评论： Shinuo Weng 2021-6-10

I'm using Matlab 2020a to do some simulation. The old code has been used for monthly, but starting from last week it always run into an automatic pause showing "Paused: Press any key" on the lower left cornor of the command Window...Sometimes, it paused in a few minutes, and sometimes in about an hour...I do have two lines

pause(1);
pause(0.01);

in the for loop, but it would be run every loop. So I don't know where this pause unexpected come from

Any idea?

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Answer 1

Jan 2021-6-10

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https://ww2.mathworks.cn/matlabcentral/answers/853400-run-into-paused-press-any-key#answer_722160

在 MATLAB Online 中打开

This problem appeared in R2016a already: https://www.mathworks.com/matlabcentral/answers/278430-why-does-program-execution-hang-when-using-pause

The workaround have been strange. Do you need pause command in your code? Try to replaces them by drawnow. Do you need Matlab to wait for a certain time? Then try:

java.lang.Thread.sleep(duration*1000)

This has less jitter than pause() also.

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Shinuo Weng 2021-6-10

HI Jan,

Thanks for youre reply. I will try what you recommended. That's a real old bummer...

Last week, there was a suddent problem with the Java enviroment variable. I tried to rest the variable under somewhere I don't remember now(this PC?), but it didn't work. I had to uninstal and reinstal to solve the problem I don't know if it is ever related...Just to share.

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