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Cleanest way to toggle a boolean variable in Java?
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548
theBoolean = !theBoolean;
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Count the number occurrences of a character in a string
...;> sentence = 'Mary had a little lamb'
>>> sentence.count('a')
4
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Download old version of package with NuGet
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Arne Evertsson
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answered Apr 12 '11 at 12:50
PHeibergPHeiberg
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Remove duplicate rows in MySQL
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edited Jul 24 '15 at 14:04
styvane
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快速理解 高频对冲套利自动交易（程式化交易） - 更多技术 - 清泛网 - 专注...
...上，分跨期套利、跨品种套利，目前只针对跨期套利；
4、何谓：自动交易？借助计算机程序，将交易者简单、重复的交易策略，高效率执行；
要能做到“高频”，并非完全取决于程序，根本上，是取决于市场，市场如果不提...
efficient way to implement paging
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edited Feb 9 '14 at 12:10
Behrang Saeedzadeh
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XMLHttpRequest status 0 (responseText is empty)
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YakovL
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answered Apr 16 '12 at 11:58
Abhishek_8Abhi...
Unix's 'ls' sort by name
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edited Apr 1 '19 at 14:51
answered May 18 '09 at 15:19
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How to revert a “git rm -r .”?
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git reset HEAD
Should do it. If you don't have any uncommitted changes that you care about, ...
Make child visible outside an overflow:hidden parent
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