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Can we write our own iterator in Java?
If I have a list containing [alice, bob, abigail, charlie] and I want to write an iterator such that it iterates over elements that begin with 'a', can I write my own ? How can I do that ?
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How to set child process' environment variable in Makefile
I would like to change this Makefile:
4 Answers
4
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How do I shutdown, restart, or log off Windows via a bat file?
I've been using Remote Desktop Connection to get into a workstation. But in this environment, I cannot use the power options in Start Menu. I need an alternative way to shutdown or restart.
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SVG get text element width
I'm working on some ECMAScript/JavaScript for an SVG file and need to get the width and height of a text element so I can resize a rectangle that surrounds it. In HTML I would be able to use the offsetWidth and offsetHeight attributes on the element but it appears that those properties are...
How to Calculate Execution Time of a Code Snippet in C++
I have to compute execution time of a C++ code snippet in seconds. It must be working either on Windows or Unix machines.
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What is the “-->” operator in C++?
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--> is not an operator. It is in fact two separate operators, -- and >.
The conditional's code decrements x, while returning x's original (not decremented) value, and then compares the original value with 0 using the > operator.
To bett...
Why can't I see the “Report Data” window when creating reports?
...ting RDLC reports in VS10. When the program is NOT running, I can see the toolbox, and add controls to the report, but the "Report Data" pane is nowhere to be found, so I can't fill the controls on my report. However, if I run the solution, the "Report Data" pane appears, and I can drag fields on ...
Modifying a subset of rows in a pandas dataframe
Assume I have a pandas DataFrame with two columns, A and B. I'd like to modify this DataFrame (or create a copy) so that B is always NaN whenever A is 0. How would I achieve that?
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How do I use disk caching in Picasso?
I am using Picasso to display image in my android app:
9 Answers
9
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How to check which locks are held on a table
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To add to the other responses, sp_lock can also be used to dump full lock information on all running processes. The output can be overwhelming, but if you want to know exactly what is locked, it's a valuable one to run. I u...