import java.util.*;
import java.lang.*;
import java.io.*;
 
class MyBasicOperations {
        public static void main(String a[]){
        TreeMap<String, String> hm = new TreeMap<String, String>();
        hm.put("first", "FIRST INSERTED");
        hm.put("second", "SECOND INSERTED");
        hm.put("third","THIRD INSERTED");
        System.out.println(hm);
        System.out.println("Value of second: "+hm.get("second"));
        System.out.println("Is TreeMap empty? "+hm.isEmpty());
        hm.remove("third");
        System.out.println(hm);
        System.out.println("Size of the TreeMap: "+hm.size());
    }
}

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