package com.company; import java.util.Scanner; public class test61 { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("请输入一个字符串"); String ss = input.next(); System.out.println(ss.length()); System.out.println(ss.charAt(0)); System.out.println(ss.charAt(ss.length()-1)); } }
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