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Get an OutputStream into a String
...charset.Charset. A possible value is java.nio.charset.StandardCharsets.UTF_8.
The method toString() accepts only a String as a codepage parameter (stand Java 8).
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What is the relative performance difference of if/else versus switch statement in Java?
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8 Answers
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How to undo 'git reset'?
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2484
Short answer:
git reset 'HEAD@{1}'
Long answer:
Git keeps a log of all ref updates (e.g., c...
Error: Could not create the Java Virtual Machine Mac OSX Mavericks
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answered Sep 1 '14 at 15:58
BatScreamBatScream
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Simple (non-secure) hash function for JavaScript? [duplicate]
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edited Mar 21 '18 at 13:56
Jared Forsyth
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What do single quotes do in C++ when used on multiple characters?
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285
It's a multi-character literal. 1952805748 is 0x74657374, which decomposes as
0x74 -> 't'
0x...
Multiple aggregations of the same column using pandas GroupBy.agg()
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edited Dec 8 '19 at 9:16
cs95
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Get original URL referer with PHP?
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answered Dec 8 '09 at 4:28
SampsonSampson
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Variable's scope in a switch case [duplicate]
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188
I'll repeat what others have said: the scope of the variables in each case clause corresponds t...
R - Concatenate two dataframes?
...frame b.
Results
> a <- data.frame(a=c(0,1,2), b=c(3,4,5), c=c(6,7,8))
> a
a b c
1 0 3 6
2 1 4 7
3 2 5 8
> b <- data.frame(a=c(9,10,11), c=c(12,13,14))
> b
a c
1 9 12
2 10 13
3 11 14
> b$b <- NA
> b
a c b
1 9 12 NA
2 10 13 NA
3 11 14 NA
> new <- rbind(...