解题思路:
注意事项:
参考代码:
import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int n = scanner.nextInt(); ArrayList<Integer> list = new ArrayList<Integer>(); for (int i = 0; i < n; i++) { list.add(scanner.nextInt());//接收数据添加到集合内 } Collections.sort(list);//给集合排序 //遍历集合倒序输出 for (int i = list.size()-1; i >= 0 ; i--) { System.out.print(list.get(i)+" "); } } }
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