判断是否为回文串

Posted 2021-02-10 turningli

package com.lkr.dataStructure;

import java.util.Scanner;

public class HuiwenString {
    public static void main(String[] args){
        System.out.println("请输入字符串");
        Scanner input = new Scanner(System.in);
        String s = input.next();
        boolean isHuiWen = isHuiwen(s);
        if(isHuiWen){
            System.out.println(s + "是回文串");
        }
        else System.out.println(s + "不是回文串");
    }
    public static boolean isHuiwen(String text){
        int length = text.length();
        for(int i=0;i<length/2;i++){
            if(text.toCharArray()[i] != text.toCharArray()[length-i-1]){
                return false;
            }

        }
        return true;

    }
}