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What's the best way to check if a String represents an integer in Java?
... if (length == 0) {
return false;
}
int i = 0;
if (str.charAt(0) == '-') {
if (length == 1) {
return false;
}
i = 1;
}
for (; i < length; i++) {
char c = str.charAt(i);
if (c < '0' || c > '9') {
retu...
What is the difference between CHARACTER VARYING and VARCHAR in PostgreSQL?
John uses CHARACTER VARYING in the places where I use VARCHAR .
I am a beginner, while he is an expert.
This suggests me that there is something which I do not know.
...
Removing first x characters from string?
How might one remove the first x characters from a string? For example, if one had a string lipsum , how would they remove the first 3 characters and get a result of sum ?
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Best way to convert list to comma separated string in java [duplicate]
...mmons Lang (commons.apache.org/proper/commons-lang/apidocs/org/apache/…, char))
– Sigrist
Feb 8 '14 at 10:46
63
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How to check a string for specific characters?
How can I check if a string has several specific characters in it using Python 2?
5 Answers
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How did I get a value larger than 8 bits in size from an 8-bit integer?
...s extended to bit-width sizeof(int) . As I understand it, incrementing a char shouldn't ever be undefined behavior as long as sizeof(char) < sizeof(int) . But that doesn't explain how c is getting an impossible value. As an 8-bit integer, how can c hold values greater than its bit-width...
Can a class member function template be virtual?
...ember functions are resolved statically. That is, the
member function is selected statically (at compile-time) based on the
type of the pointer (or reference) to the object.
In contrast, virtual member functions are resolved dynamically (at
run-time). That is, the member function is selec...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
...
(Ran out of chars in the prev comment so): More detail? Use perf [1], [2]. [1] perf.wiki.kernel.org/index.php/Main_Page [2] brendangregg.com/perf.html
– kaiwan
May 9 '15 at 7:46
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How can I capitalize the first letter of each word in a string?
... If the optional second argument sep is absent or None, runs of whitespace characters are replaced by a single space and leading and trailing whitespace are removed, otherwise sep is used to split and join the words.
share
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Best practice multi language website
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It's getting harder and harder to select the best answer, currently there are about 3/4 answers that deserve at least a part of the bounty each. Combined they become a solid answer to everything I wanted to clear up together :)
– Joshua ...