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How to initialize log4j properly?
...leAppender
log4j.appender.R.File=example.log
log4j.appender.R.MaxFileSize=100KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
...
background-size in shorthand background property (CSS3)
...kground:url('equote.png'),url('equote.png');
background-size:400px 100px,50px 50px;
}
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What database does Google use?
...s them as tablets. A tablet is around 200 MB, and each machine saves about 100 tablets. This setup allows tablets from a single table to be spread among many servers. It also allows for fine-grained load balancing. If one table is receiving many queries, it can shed other tablets or move the busy ta...
How to remove leading and trailing zeros in a string? Python
...
Did you try with strip() :
listOfNum = ['231512-n','1209123100000-n00000','alphanumeric0000', 'alphanumeric']
print [item.strip('0') for item in listOfNum]
>>> ['231512-n', '1209123100000-n', 'alphanumeric', 'alphanumeric']
...
MaterialDialog 对话框增强扩展 · App Inventor 2 中文网
...Text,cancelableOnTouchOutside,isIndeterminateProgress,rgbColor)
创建一个包含标题、消息文本和最多三个按钮的标准对话框。按钮点击后触发 OnButtonClick 事件。
dialogId：对话框的唯一标识符。
title：对话框标题。
message：对...
Filtering a list based on a list of booleans
...True, False, True, False]
>>> %timeit list(compress(list_a, fil))
100000 loops, best of 3: 2.58 us per loop
>>> %timeit [i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False...
Are there any disadvantages to always using nvarchar(MAX)?
...
Based on the link provided in the accepted answer it appears that:
100 characters stored in an nvarchar(MAX) field will be stored no different to 100 characters in an nvarchar(100) field - the data will be stored inline and you will not have the overhead of reading and writing data 'out of r...
How to remove the first Item from a list?
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Java: how to initialize String[]?
... // <--declared statement
String[] errorSoon = new String[100]; // <--initialized statement
You need to initialize the array so it can allocate the correct memory storage for the String elements before you can start setting the index.
If you only declare the array (as you did)...
How to draw an empty plot?
...nts:
plot.new( )
plot.window( xlim=c(-5,5), ylim=c(-5,5) )
points( rnorm(100), rnorm(100) )
axis( side=1 )
example plot
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