Answer to Question #255634 in Java | JSP | JSF for Logan

Question

Write a general error handling class that has general functions that would take in a string, which the main pages would get as an input and those functions can search for specific things. For example: any sort of input from the user where we would expect them to make a mistake( like where they enter numbers into their name in user login) and where the user must enter atleast one cap character in the text field if not it returns an error.

Answer 1

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public class Main
{
	public static void main(String[] args) {
		  String special_char = "~`!@#$%^&*()-_=+\\|[{]};:'\",<.>/?";
    char CC;
    boolean numP = false;
    boolean upper = false;
    boolean lower = false;
    boolean special = false;
    System.out.print("Enter a string: ");
    for (int i = 0; i < input.length(); i++) {
        CC = input.charAt(i);
        if (Character.isDigit(CC)) {
            numP = true;
        } else if (Character.isUpperCase(CC)) {
            upper = true;
        } else if (Character.isLowerCase(CC)) {
            lower = true;
        } else if (special_char.contains(String.valueOf(CC))) {
            special = true;
        }
        else{
            System.out.print("Invalid login");
        }
    }


    return
      numP && upper && lower && special;
}}
}