Java语言基础- String类 1 length()方法与compareTo()方法的使用 - 花名册

package step1;

import java.util.Scanner;

public class Roster {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String roster1=scanner.nextLine();
        String roster2=scanner.nextLine();
        
        System.out.println(roster1.length());
        System.out.println(roster2.length());
        int u;
        u=roster1.compareTo(roster2);
        if(u==0){
        System.out.println("相同");
        }
        else{
            System.out.println("不相同");
        }
    }
}