import java.util.*;

public class collectionExample {
    public static void main(String[] args) {
        ArrayList ListArr = new ArrayList();
        LinkedList ListLinked = new LinkedList();
        Vector ListVector = new Vector();
        Stack ListStack = new Stack();

        ListArr.add(new String("A"));
        System.out.println("ListArr(0) : " + ListArr.get(0));
        ListLinked.add(new String("LA"));
        System.out.println("ListLinked(0) : " + ListLinked.get(0));
        ListVector.add(new String("V"));
        System.out.println("ListLinked(0) : " + ListArr.get(0));
        ListStack.push(new String("1"));
        ListStack.push(new String("2"));
        System.out.println("ListStack(0) : " + ListStack.pop());

        HashSet SetHashSet = new HashSet();
        SetHashSet.add(new String("가"));
        SetHashSet.add(new String("나"));
        SetHashSet.add(new String("다"));
        System.out.println("SetHashSet(0) : " + SetHashSet);
        LinkedHashSet SetLinkedHashSet = new LinkedHashSet();
        SetLinkedHashSet.add(new String("가"));
        SetLinkedHashSet.add(new String("나"));
        SetLinkedHashSet.add(new String("다"));
        System.out.println("SetLinkedHashSet(0) : " + SetLinkedHashSet);
        TreeSet SetTreeSet = new TreeSet();
        SetTreeSet.add(new String("3"));
        SetTreeSet.add(new String("1"));
        SetTreeSet.add(new String("2"));
        System.out.println("SetLinkedHashSet(0) : " + SetTreeSet);

        Queue Que = new LinkedList();
        Que.add(new String("1"));
        Que.add(new String("2"));
        System.out.println("Que(0) : " + Que.poll());
        Deque DeQue = new LinkedList();
        DeQue.add(new String("1"));
        DeQue.add(new String("2"));
        System.out.println("DeQue(0) : " + DeQue.pollFirst());
        System.out.println("DeQue(0) : " + DeQue.pollLast());

        HashMap MapHashMap = new HashMap();
        MapHashMap.put(new String("국어"), new String("10"));
        MapHashMap.put(new String("수학"), new String("20"));
        MapHashMap.put(new String("영어"), new String("30"));
        System.out.println("MapHashMap(0) : " + MapHashMap);
        LinkedHashMap MapLinkedHashMap = new LinkedHashMap();
        MapLinkedHashMap.put(new String("국어"), new String("10"));
        MapLinkedHashMap.put(new String("수학"), new String("20"));
        MapLinkedHashMap.put(new String("영어"), new String("30"));
        System.out.println("MapLinkedHashMap(0) : " + MapLinkedHashMap);
        TreeMap MapTreeMap = new TreeMap();
        MapTreeMap.put(new String("영어"), new String("30"));
        MapTreeMap.put(new String("국어"), new String("10"));
        MapTreeMap.put(new String("수학"), new String("20"));
        System.out.println("MapTreeMap(0) : " + MapTreeMap);
    }
}