• 이아현

public Map<String, Integer> makeMap() {
    Map<String, Integer> products = new HashMap<>();

    products.put("가위", 2500);
    products.put("크레파스", 5000);

    return products;
}

• 백도훈.

		@Override
    public boolean equals(Object o) {
        Student s = (Student) o;

        return this.name.equals(s.name) && this.studentNum == s.studentNum;
    }

    @Override
    public int hashCode() {
//        int result = studentNum;
//        result = 31 * result + (name != null ? name.hashCode() : 0);
//        return result;
        return (name + studentNum).hashCode();
    }

• 김지원

public class Lotto {
    public static void main(String[] args) {
        Set<Integer> set = new HashSet<>();

        while (set.size() < 6) {
            int random = (int) (Math.random() * 45) + 1;
            set.add(random);
        }

        List<Integer> list = new ArrayList<>(set);
        Collections.sort(list);

        System.out.println(list);
    }
}

• 신세환

public class MyStack {

    LinkedList<Integer> list;

    public MyStack() {
        list = new LinkedList<>();
    }

    public boolean empty() {
        return list.size() == 0;
    }

    public int peek() {
        return list.get(0);
    }

    public int pop() {
        int element = list.get(0);
        list.remove(0);

        return element;
    }

    public void push(int input) {
        list.add(0, input);
    }
}