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How to write Java string literals that contain double-quotes (")?


How to write Java string literals that contain double-quotes (")?

By : user3853766
Date : October 28 2020, 04:55 PM
Hope that helps You have unescaped quotes inside your call to Pattern.compile.
Change:
code :


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C# String.Replace double quotes and Literals

C# String.Replace double quotes and Literals


By : Mirko
Date : March 29 2020, 07:55 AM
I hope this helps . I'm fairly new to c# so that's why I'm asking this here. , the following statement in C#
code :
string xmlSample = "<root><item att1=\"value\" att2=\"value2\" /></root>"
<root><item att1="value" att2="value2" /></root>
string xmlSample = @"<root><item att1=\""value\"" att2=\""value2\"" /></root>";
<root><item att1=\"value\" att2=\"value2\" /></root>
string test = xmlSample.Replace(@"\", string.Empty);
<root><item att1="value" att2="value2" /></root>
Is using single quotes for string literals faster than double quotes?

Is using single quotes for string literals faster than double quotes?


By : RAAJ BATHAM
Date : March 29 2020, 07:55 AM
it helps some times I was curious about this too, so I ran a few measurement on an Intel i7-8700 Hackintosh.
Here are the results:
code :
for i in {1..1000000}
do
        echo 'abcdefghijklmnopqrstuvwxyz'
done

sh test.sh  7,40s user 0,80s system 97% cpu 8,403 total
for i in {1..1000000}
do
        echo "abcdefghijklmnopqrstuvwxyz"
done

sh test.sh  9,96s user 0,87s system 97% cpu 11,050 total
for i in {1..1000000}
do
        echo abcdefghijklmnopqrstuvwxyz
done

sh test.sh  9,97s user 0,88s system 98% cpu 11,068 total
for i in {1..1000000}
do
        echo 'abc'$i'defghijklmnopqrstuvwxyz'
done

sh test.sh  9,53s user 0,91s system 97% cpu 10,707 total
for i in {1..1000000}
do
        echo "abc${i}defghijklmnopqrstuvwxyz"
done

sh test.sh  11,78s user 0,94s system 97% cpu 13,028 total
Why do the most languages employ double quotes not single for String Literals?

Why do the most languages employ double quotes not single for String Literals?


By : Andrea Parisi
Date : March 29 2020, 07:55 AM
like below fixes the issue because usually when you type text strings, you need the single quote more than the double quote like:
string s1 = "it's a rainy day.." string s2 = "this file can't be opened.."
Python string literals - including single quote as well as double quotes in string

Python string literals - including single quote as well as double quotes in string


By : Dustin Mcculley
Date : March 29 2020, 07:55 AM
it helps some times I want to join this series of strings: , if you use print command you will see as you want...
code :
>>> my_str='"hello!"' + " it's" + ' there'
>>> my_str
'"hello!" it\'s there' #Count printed characters. You will count 22
>>> print my_str
"hello!" it's there
#Now count characters. 19
>>> len(my_str)
19
#see count of characters.
R - How to remove double quotes (" ") in the string values of write.table(... .txt) output?

R - How to remove double quotes (" ") in the string values of write.table(... .txt) output?


By : Yamamoto
Date : March 29 2020, 07:55 AM
With these it helps Suppose I have the following dataset, dat:
code :
write.table(dat, file=paste(date, 'output.txt'), na ="", row.names=FALSE, append=TRUE, sep='\t', quote=FALSE)
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