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How can I pad an integer with zeros on the left?

...r 1.4 and lower DecimalFormat is an alternative as shown here javadevnotes.com/java-integer-to-string-with-leading-zeros – JavaDev Mar 5 '15 at 3:38 1 ...
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What is the maximum amount of RAM an app can use?

...s by device. Which "side factors" are taken into consideration when it comes to determining how much RAM an app can use? I have no idea what "side factors" means. Early devices had a per-app cap of 16MB; Later devices increased that to 24MB or 32MB That's about right. Screen resolution i...
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Why are ToLookup and GroupBy different?

...cally they are the same thing but the performance implications of each are completely different. Calling ToLookup means I want a cache of the entire thing right now organized by group. Calling GroupBy means "I am building an object to represent the question 'what would these things look like if I o...
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What does ON [PRIMARY] mean?

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Can't find a “not equal” css attribute selector

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How to list files in a directory in a C program?

...tory on terminal by a C program? Maybe I can use exec function to run find command but I want file name as a string to send client program. How can I do this? ...
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Showing data values on stacked bar chart in ggplot2

...ry(ggplot2) library(plyr) # calculate midpoints of bars (simplified using comment by @DWin) Data <- ddply(Data, .(Year), transform, pos = cumsum(Frequency) - (0.5 * Frequency) ) # library(dplyr) ## If using dplyr... # Data <- group_by(Data,Year) %>% # mutate(pos = cumsum(Frequency...
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Python OpenCV2 (cv2) wrapper to get image size?

... Oh, come on. Instead of assuming that the image will be BGR or mono, just write generally - h, w = img.shape[:2], especially as the OP is not interested in the depth. (Neither was I). See my answer for more details. ...
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RSpec: describe, context, feature, scenario?

... the section for Capybara's built in DSL(Domain Specific Language): github.com/jnicklas/capybara#using-capybara-with-rspec – SpartaSixZero Sep 26 '16 at 12:33 ...
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Load Testing with AB … fake failed requests (length)

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