public boolean isValidName(String name) { String specialCharacters=" !#$%&'()*+,-./:;<=>?@[]^_`{|}~0123456789"; String str2[]=name.split(""); int count=0; for (int i=0;i<str2.length;i++) { if (specialCharacters.contains(str2[i])) { count++; } } if (name!=...
How exactly can I check a string to see if it contains one of these values? I have tried if(buttons[i].getText().contains("\uF14B")) { buttons[i].setFont(newFont("Segoe MDL2 Assets", Font.PLAIN,15)); } While this does work, I think that it's pretty ineffecient to have to ...
Checking if a string contains any special characterTo check for the presence of any special character in a string, we will compare all special characters for characters in the string. An effective way to do this is using regular expressions which provides methods for comparison....
In this article, we will check if any string contains a particular character or not. We will print to the webpage if it contains the character in the string otherwise not. Here's a PHP script to implement this functionality. We will be using strpos() function, which expects two parameter...
check if input is integer or string Check if linq result is null. check if the data column and the data row have the same value in a datatable check if the datarow has values in datatable check if the result is integer or not check if variable is number in C# Check if vb.net str...
Check if string starts with letter/character. check installed memory with physical memory Check network drive connection Check object property existance check PKI certificate expiration Check string for two special characters back to back Check to see if user has mailbox in o365 Checking a directory...
I am using java pattern.matches(string) to test if the regular expression matches. But overall, the string should only have a total of 15 characters from these special characters set which includes numeric characters. ? 1 (?=(?:\\D*\\d){0,9}\\D*$) ...
ASCII values are integer representations of characters, and we can use them to check if a character is alphanumeric. Let’s begin by examining an example: public class CheckCharAlpha { public static void main(String[] args) { boolean isAlphanumeric = isAlphaNumeric('k'); System.out....
3. Using the Special Variable $# Most straightforward way to check the number of arguments is using the special variable $#, which holds the count of arguments passed to the script. Here is an simple example: Use $# Variable 1 2 3 4 5 6 7 8 if [ $# -ne 2 ]; then echo "...
2. Using std::string::empty() The std::string::empty() method is a direct and efficient way to check if a string is empty. Using empty() method C++ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 #include <iostream> #include <string> bool isStringEmpty(const std::string& str) { re...