831. Masking Personal Information
Explanation:
- We need to mask the personal information string based on whether it represents an email address or a phone number.
- For email addresses, we need to convert the name and domain to lowercase and replace the middle characters of the name with asterisks.
- For phone numbers, we need to remove separation characters and mask the number accordingly.
:
class Solution {
public String maskPII(String s) {
if (s.contains("@")) {
return maskEmail(s);
} else {
return maskPhoneNumber(s);
}
}
private String maskEmail(String email) {
int atIndex = email.indexOf('@');
String name = email.substring(0, atIndex).toLowerCase();
String domain = email.substring(atIndex).toLowerCase();
return name.charAt(0) + "*****" + name.charAt(name.length() - 1) + domain;
}
private String maskPhoneNumber(String phone) {
String digits = phone.replaceAll("\\D", "");
int localLength = digits.length() - 10;
String masked = "***-***-" + digits.substring(digits.length() - 4);
if (localLength > 0) {
String country = "+";
for (int i = 0; i < localLength; i++) {
country += "*";
}
return country + "-" + masked;
}
return masked;
}
}Code Editor (Testing phase)
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