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What is float in Java?
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In Java, when you type a decimal number as 3.6, its interpreted as a double. double is a 64-bit precision IEEE 754 floating point, while floatis a 32-bit precision IEEE 754 floating point. As a float is less precise than a d...
How to get current timestamp in milliseconds since 1970 just the way Java gets
In Java, we can use System.currentTimeMillis() to get the current timestamp in Milliseconds since epoch time which is -
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How do I get the backtrace for all the threads in GDB?
Is there an equivalent command in GDB to that of WinDbg's "!process 0 7"?
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How to handle more than 10 parameters in shell
I am using bash shell on linux and want to use more than 10 parameters in shell script
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How do I globally configure RSpec to keep the '--color' and '--format specdoc' options turned on
How do I set global configuration for RSpec in Ubuntu.
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contenteditable change events
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I'd suggest attaching listeners to key events fired by the editable element, though you need to be aware that keydown and keypress events are fired before the content itself is changed. This won't cover every possible means of changing the con...
Formatting a float to 2 decimal places
I am currently building a sales module for a clients website. So far I have got the sale price to calculate perfectly but where I have come stuck is formatting the output to 2 decimal places.
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How to get the first line of a file in a bash script?
I have to put in a bash variable the first line of a file. I guess it is with the grep command, but it is any way to restrict the number of lines?
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How to set top-left alignment for UILabel for iOS application?
I have added one label in my nib file, then its required to have top-left alignment for that lable. As I am providing text at runtime so its not sure that how much lines there are.
So if text contains only single line then it appears as vertical-center aligned. That alignment is not matching with my...
Force unmount of NFS-mounted directory [closed]
I have an NFS-mounted directory on a Linux machine that has hung. I've tried to force an unmount, but it doesn't seem to work:
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