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How to check if a String is numeric in Java
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@kape123 :) sure "123.456" doesn´t contain digits.
– Ahmed Alejo
Nov 14 '14 at 18:01
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Access mysql remote database from command line
...rant 'root'@'%' this is a huge security no no!
– josh123a123
Apr 27 '15 at 14:57
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How do you Encrypt and Decrypt a PHP String?
...xample I want to pass a GET parameter from page to page, let's say prod_id=123 but I just do not want to make 123 readable for everybody, however even if they could read it, it won't be a problem. An attacker being able to replace the 123 to a custom value won't cause any harm, he/she will only be a...
The difference between sys.stdout.write and print?
... open('log.txt', 'w') # redirect all prints to this log file
print("testing123") # nothing appears at interactive prompt
print("another line") # again nothing appears. it's written to log file instead
sys.stdout.close() # ordinary file object
sys.stdout = tem...
Good examples of Not a Functor/Functor/Applicative/Monad?
...fied. For example, fmap id ≠ id, because let (Q(f,_)) = fmap id (Q(read,"123")) in f "456" is 123, but let (Q(f,_)) = id (Q(read,"123")) in f "456" is 456.
In fact, F is only a profunctor, - it is neither a functor nor a contrafunctor.
A lawful functor that is not applicative because the type s...
Why can't C# interfaces contain fields?
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How can I define a constant default value (like 123) to that automatic implementation of Year?
– lama12345
Aug 1 '17 at 1:39
1
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...中的两个中括号可以用于定义有换行的字符串）a = 'alo\n123"'
a = "alo\n123""
a = '\97lo\10\04923"'
a = [[alo
123"]]复制代码
C语言中的NULL在Lua中是nil，比如你访问一个没有声明过的变量，就是nil，比如下面的v的值就是n...
Find and extract a number from a string
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go through the string and use Char.IsDigit
string a = "str123";
string b = string.Empty;
int val;
for (int i=0; i< a.Length; i++)
{
if (Char.IsDigit(a[i]))
b += a[i];
}
if (b.Length>0)
val = int.Parse(b);
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Is there an easy way to create ordinals in C#?
...inal());
Assert.AreEqual("122nd", 122.Ordinal());
Assert.AreEqual("123rd", 123.Ordinal());
Assert.AreEqual("124th", 124.Ordinal());
}
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How to convert/parse from String to char in java?
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But that will turn "123" into '1', is that what you're after?
– aioobe
Oct 21 '11 at 18:19
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