Collections.synchronizedMap when map is used in thread

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

// HashMap is not synchronized

public class MapTest {
    public static void main(String[] args){
        Map<String, String> map = Collections.synchronizedMap(new HashMap<String, String>());
        map.put("1", "a");
        map.put("2", "b");
        map.put("3", "c");
       
        for (Map.Entry<String, String> entry:map.entrySet()){
           
            System.out.println("key="+entry.getKey()+" value="+entry.getValue());
           
        }
       
    }

}

OUTPUT:
key=3 value=c
key=2 value=b
key=1 value=a