Apex Code Development You need to sign in to do that
Don't have an account?
Expression must be a list type: String IN Apex class
Dear folks,
I wrote this code to Return an array of characters in reversed order for alphanumeric characters ,but i keep getting error as
Expression must be a list type: String
Kindly let me know what wrong am doing?
Thanks
Tarun
I wrote this code to Return an array of characters in reversed order for alphanumeric characters ,but i keep getting error as
Expression must be a list type: String
public class assessment {
public static List<String> reverseAlphaNumericCharacters(String s) {
List<String> reversedChars = new List<String>();
for (Integer i = s.length() - 1; i >= 0; i--) {
if (isAlphaNumeric(s[i])) {
reversedChars.add(s[i]);
}
}
return reversedChars;
}
private static Boolean isAlphaNumeric(String c) {
return ('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z') || ('0' <= c && c <= '9');
}
}
Kindly let me know what wrong am doing?
Thanks
Tarun
Refer the below link have solution for similar kind of ask.
https://salesforce.stackexchange.com/questions/392234/how-to-resolve-expression-must-be-a-list-type-string-in-apex-class
Thanks!!