题目:输入一个字符,然后把这个字符串反转输出
样例输入:
123459867565443
样例输出:
344565768954321
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String str = sc.next(); char[] arr = new char[str.length()]; for (int i = 0; i < str.length(); i++) { arr[i] = str.charAt(i); } for (int min = 0 ,max = arr.length-1; min <= max; min++,max--){ char t = arr[min]; arr[min] = arr[max]; arr[max] = t; } for (int i = 0; i < arr.length; i++) { System.out.print(arr[i]); } } }
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