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import java.util.Arrays;
class Solution {
    public int solution(int[] numbers) {
        int answer = 0;
        Arrays.sort(numbers);                                           //매개변수로 들어온 정수배열을 오름차순으로 정렬
        answer=numbers[numbers.length-1]*numbers[numbers.length-2];     //정렬한 배열의 마지막 정수와 바로전 정수를 곱함
        return answer;
    }
}
cs
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