字符串反转

思路：先将字符串转换成数组，循环反转数组，最后再转为字符串

package jichu;

import java.util.Arrays;

/**
 * Created by xiaobai on 2019/4/24.
 * 字符串反转
 * @author xiaobai.
 * @DATE 2019/4/24
 */
public class StringReversal {

    public static void main(String[] args) {
        String strs = "abcdefg";
        reVersal(strs);
    }


    public static void reVersal(String strs){
        //将字符串先转为数组
        char[] array = strs.toCharArray();
        System.out.println(Arrays.toString(array));
        for (int i = 0,j=array.length-1;i<j;i++,j--){
            char temp = array[i];
            array[i] = array[j];
            array[j] = temp;
        }
        System.out.println(Arrays.toString(array));
        new String(array);
        System.out.println(array);
    }


}