字符串旋转

/*
我的想法是将字符串A循环移位，每移动一次，就和字符串B进行比较，知道与字符串相等或者字符串A移动结束
*/
import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        String[] strarr = input.nextLine().split(";");
        String str1 = strarr[0];
        String str2 = strarr[1];

        //将str1进行移位
        for(int i = 0;i<str1.length();i++){
            str1 = str1.substring(1)+String.valueOf(str1.charAt(0));
            if(str1.equals(str2)){
                System.out.println(true);
                return;
            }
        }
        System.out.println(false);
    }
}

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String str = scanner.next();
        String word1 = str.split(";")[0];
        String word2 = str.split(";")[1];
        if (word1.length() != word2.length()) {
            System.out.println("false");
        } else {
            System.out.println((word1 + word1).contains(word2));
        }
    }
}

import java.util.Scanner;

public class Main {


    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        String[] split = s.split(";");
        String s1 = split[0];
        String s2 = split[1];
        for(int i=0;i<s1.length();i++){
            boolean flag = (s1.substring(i + 1) + s1.substring(0, i + 1)).equals(s2);
            if(flag){
                System.out.println(true);
                return;
            }
        }
        System.out.println(false);
    }
}