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Random string generation with upper case letters and digits
I want to generate a string of size N.
31 Answers
31
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How can I hash a password in Java?
...der enc = Base64.getEncoder();
System.out.printf("salt: %s%n", enc.encodeToString(salt));
System.out.printf("hash: %s%n", enc.encodeToString(hash));
Here's a utility class that you can use for PBKDF2 password authentication:
import java.security.NoSuchAlgorithmException;
import java.security.Secu...
How can I generate random alphanumeric strings?
How can I generate a random 8 character alphanumeric string in C#?
33 Answers
33
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Count character occurrences in a string in C++
How can I count the number of "_" in a string like "bla_bla_blabla_bla" ?
13 Answers
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How do I remove diacritics (accents) from a string in .NET?
I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take out the French accent marks in the letters while keeping the letter. (E.g. convert é to e , so crème brûlée would become creme brulee )
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Generating a random password in php
...tor. Look elsewhere for generating a cryptographically secure pseudorandom string in PHP.
Try this (use strlen instead of count, because count on a string is always 1):
function randomPassword() {
$alphabet = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
$pass = array(...
How to change the CHARACTER SET (and COLLATION) throughout a database?
...DEFAULT is not null, CONCAT(' DEFAULT \'', COLUMN_DEFAULT, '\''), ''), if (EXTRA != '', CONCAT(' ', EXTRA), '')))), ';') as alter_statement
FROM information_schema.columns a
INNER JOIN INFORMATION_SCHEMA.TABLES b ON a.TABLE_CATALOG = b.TABLE_CATALOG
AND a.TABLE_SCHEMA = b.TABLE_SCHEM...
String's Maximum length in Java - calling length() method
In Java , what is the maximum size a String object may have, referring to the length() method call?
7 Answers
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What does the comma operator , do?
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I've seen used most in while loops:
string s;
while(read_string(s), s.len() > 5)
{
//do something
}
It will do the operation, then do a test based on a side-effect. The other way would be to do it like this:
string s;
read_string(s);
while(s.len() >...
How to find memory leak in a C++ code/project?
...you allocated:
char* str = new char [30]; // Allocate 30 bytes to house a string.
delete [] str; // Clear those 30 bytes and make str point nowhere.
2
Reallocate memory only if you've deleted. In the code below, str acquires a new address with the second allocation. The first address is lost ir...