从键盘输入N（自己指定）个字符串，并使用ArrayList存储，输出ArrayList中存储的每个字符串的长度，并按照自然顺序（ASCII码）对ArrayList中存储的字符串排序。

如题

//实验报告

import java.util.*;

public class TestArrayList {
	public static void main(String args[]) throws Exception {
		ArrayList list = new ArrayList();
		Scanner sc = new Scanner(System.in);
		System.out.println("Please start input your first element in ArrayList:(Input enter to continue)");
		
	
		while(sc.hasNext()) {
			list.add(sc.nextLine());
			System.out.println("Please input the next element:(Input Ctrl + Z to end)");
		} //输入ArrayList
		
		System.out.println();
		System.out.println("The list is");
		System.out.println(list);
		System.out.println();
		System.out.println("The number of the elements in list is: " + list.size());  //输出包含元素个数
		System.out.println();
		
		
		String[] sort = new String[list.size()];
		

		for(Iterator i = list.iterator(); i.hasNext();) {
			String s = i.next();
			System.out.println("The length of " + s + " is " + s.length());
		}//遍历list中元素，并输出每个元素的长度
		
		Collections.sort(list);  //按照元素的自然排序
		System.out.println();
		System.out.println("After natural sorting, the list is ");	
		System.out.println(list);
		
		
	}
}