public class PasswordCheck {
// One function that checks if the password is valid
public static boolean isValidPassword(String pass) {
boolean upper = false, lower = false, digit = false, special = false;
String specials = "!@#$%^&*";
for (char ch : pass.toCharArray()) {
if (Character.isUpperCase(ch)) upper = true;
else if (Character.isLowerCase(ch)) lower = true;
else if (Character.isDigit(ch)) digit = true;
else if (specials.indexOf(ch) != -1) special = true;
}
return upper && lower && digit && special;
}
public static void main(String[] args) {
String password1 = "aT5#op09!";
if (isValidPassword(password1))
System.out.println("Valid password");
else
System.out.println("Invalid password");
String password2 = "aT#opQ!";
if (isValidPassword(password2))
System.out.println("Valid password");
else
System.out.println("Invalid password");
}
}
/*
run:
Valid password
Invalid password
*/
