1108. Defanging an IP Address(Solution || Leetcode easy || Java)

Runtime: 0 ms, faster than 100.00% of Java online submissions for Defanging an IP Address.

Memory Usage: 39.8 MB, less than 98.90% of Java online submissions for Defanging an IP Address.

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 address is a valid IPv4 address.

SOLUTION:

class Solution {
    public String defangIPaddr(String address) {
//We will create stringbuilder to occupy less space while modifying
//the string
        StringBuilder temp = new StringBuilder(address);

        int i = 0;
        
        while(i < temp.length()){
            if(temp.charAt(i) == '.'){
                temp.replace(i,i+1,"[.]");
                i += 3;
            }else{
                i++;
            }
        }
        
        return temp.toString();
    }
}

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