1613. 最高频率的IP

Description

Given a string[] lines, each line will have an ip address , find the ip address with the highest frequency.

The given data only has one IP with the highest frequency

Example

lines = ["192.168.1.1","192.118.2.1","192.168.1.1"]
return  "192.168.1.1"

public class Solution {
    /**
     * @param ipLines: ip  address
     * @return: return highestFrequency ip address
     */
    public String highestFrequency(String[] ipLines) {
        Map<String, Integer> map = new HashMap<String, Integer>();
        String ans = "";
        int count = 0;
        
        for (String str: ipLines) {
            Integer occur = map.get(str);
            if (occur != null) {
                occur += 1;
            } else {
                occur = 1;
            }
            
            map.put(str, occur);
            
            if (occur >  count) {
                count = occur;
                ans = str;
            }
        }
        return ans;
    }
}

描述
给定一个字符串数组lines, 每一个元素代表一个IP地址，找到出现频率最高的IP。

给定数据只有一个频率最高的IP

您在真实的面试中是否遇到过这个题？  
样例
lines = ["192.168.1.1","192.118.2.1","192.168.1.1"]
return  "192.168.1.1"