1 public class Logger { 2     private Map
     
       data; 3     /** Initialize your data structure here. */ 4     public Logger() { 5         data = new HashMap<>(); 6     } 7      8     /** Returns true if the message should be printed in the given timestamp, otherwise returns false. 9         If this method returns false, the message will not be printed.10         The timestamp is in seconds granularity. */11     public boolean shouldPrintMessage(int timestamp, String message) {12         if (!data.containsKey(message) || timestamp - data.get(message) >= 10) {13             data.put(message, timestamp);14             return true;15         }16         return false;17     }18 }19 20 /**21  * Your Logger object will be instantiated and called as such:22  * Logger obj = new Logger();23  * boolean param_1 = obj.shouldPrintMessage(timestamp,message);24  */