1108. Defanging an IP Address
Tags: ‘String’
Given a valid (IPv4) IP address, return a defanged version of that IP address.
A defanged IP address replaces every period "." with "[.]".
Example 1:
Input: address = "1.1.1.1" Output: "1[.]1[.]1[.]1"
Example 2:
Input: address = "255.100.50.0" Output: "255[.]100[.]50[.]0"
Constraints:
- The given
addressis a valid IPv4 address.
Solution
public String defangIPaddr(String address) {
return address.replaceAll("[.]", "[.]");
}
// OR
public String defangIPaddr(String address) {
return address.replace("", "[.]");
}