Java用Character的toString()方法来把获取的各个字符重新拼接

package demo.day0202;

import java.util.List;
import java.util.Scanner;

public class clien {

    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        char c1,c2,c3,c4;
        String temp;
        while (sc.hasNext()){
            temp=sc.nextLine();
            c1=temp.charAt(0);
            c2=temp.charAt(1);
            c3=temp.charAt(2);
            c4=temp.charAt(3);
            temp=Character.toString(c4)+Character.toString(c3)+Character.toString(c2)+Character.toString(c1);
            System.out.println(temp);
        }
    }

}