LinkedHashMap : Contains

import java.util.*;

public class Contains {

    public static void main(String[] args) {
        // TODO Auto-generated method stub



        TreeMap<String, Integer> lhm1 = new TreeMap<>();
        lhm1.put("One", 1);
        lhm1.put("Two", 2);
        lhm1.put("Three", 3);
        lhm1.put("Four", 4);
        lhm1.put("Five", 5);
        lhm1.put("Six", 6);
        lhm1.put("Seven", 7);
        lhm1.put("Eight", 8);
       
        System.out.println("Full-List : "+lhm1);
       
        System.out.println("ContainsKey(Obj o) 'Two' : "+lhm1.containsKey("Two"));
        System.out.println("ContainsValue(Obj o) '5' : "+lhm1.containsValue(5));
   
    }
}