编写一个程序，提示用户输入学生个数、学生姓名和他们的成绩，然后按照学生成绩的降序打印学生的姓名。

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package pack2;

import java.util.Scanner;

public class Sequence {

	public static void main(String[] args) {
		try(Scanner input = new Scanner(System.in);) {
			System.out.print("Enter the number of students: ");
			int numbers = input.nextInt();
			
			double[] scores = new double[numbers];
			String[] names = new String[numbers];
			for (int i = 0; i < names.length; i++) {
				System.out.print("Enter grade and name of student "+(i + 1)+": ");
				scores[i] = input.nextDouble();
				names[i] = input.nextLine();
			}
			
			sort(scores, names);
			
			System.out.println();
			for (int i = 0; i < scores.length; i++) 
				System.out.println(names[i]+" "+scores[i]);
		}
	}

	/**对学生排序*/
	public static void sort(double[] scores, String[] names) {
		for (int i = 0; i < scores.length - 1; i++) {
			double currentMax = scores[i];
			int currentIndex = i;
			
			for (int j = i + 1; j < scores.length; j++) 
				if(currentMax < scores[j]) {
					currentMax = scores[j];
					currentIndex = j;
				}
			
			if(currentIndex != i) {
				scores[currentIndex] = scores[i];
				scores[i] = currentMax;
				
				String temp = names[currentIndex];
				names[currentIndex] = names[i];
				names[i] = temp;
			}
		}
	}
}

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