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Random shuffling of an array
... feel free to use it. Make sure you import the required class and you have converted the array to a list with Arrays.asList. You have to convert the resulting list to an array, too
– KitKat
Jun 9 '18 at 16:50
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How to drop a table if it exists?
... @ZvonimirTokic it means "User defined Table". "IT" would be an internal, system defined, table. A full list is here msdn.microsoft.com/en-us/library/ms190324.aspx
– Martin Smith
Feb 7 '16 at 9:59
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Converting bool to text in C++
Maybe this is a dumb question, but is there any way to convert a boolean value to a string such that 1 turns to "true" and 0 turns to "false"? I could just use an if statement, but it would be nice to know if there is a way to do that with the language or standard libraries. Plus, I'm a pedant. :...
Double Negation in C++
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It's a trick to convert to bool.
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Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
...LIDPASSWORDTHATCANBEUSEDHERE | mysql_native_password | localhost |
| mysql.sys | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE | mysql_native_password | localhost |
| debian-sys-maint | *497C3D7B50479A812B89CD12EC3EDA6C0CB686F0 | mysql_native_password | localhost |
+------------------+-----------...
PadLeft function in T-SQL
... trick.
If your id or column is in a varchar and represents a number you convert first:
SELECT FORMAT(CONVERT(INT,id), '0000') FROM TableA
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When to use reinterpret_cast?
...you will know.
Full answer:
Let's consider basic number types.
When you convert for example int(12) to unsigned float (12.0f) your processor needs to invoke some calculations as both numbers has different bit representation. This is what static_cast stands for.
On the other hand, when you call r...
Get string character by index - Java
...rns s
If you're hellbent on having a string there are a couple of ways to convert a char to a string:
String mychar = Character.toString("mystring".charAt(2));
Or
String mychar = ""+"mystring".charAt(2);
Or even
String mychar = String.valueOf("mystring".charAt(2));
For example.
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How to print like printf in Python3?
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Simple printf() function from O'Reilly's Python Cookbook.
import sys
def printf(format, *args):
sys.stdout.write(format % args)
Example output:
i = 7
pi = 3.14159265359
printf("hi there, i=%d, pi=%.2f\n", i, pi)
# hi there, i=7, pi=3.14
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Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
...e beginner coming here, reading this, and going away thinking that you can convert any character from upper case to lower case by multiplying it by 1.5.
– Dawood ibn Kareem
May 28 '14 at 9:25
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