输入三个字符串，按由小到大的顺序输出

import java.util.Arrays;
import java.util.Scanner;
public class Main {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
String[] str =new String[3];
str[0] = sc.next();
str[1] = sc.next();
str[2] = sc.next();
Arrays.sort(str);  //数组排序
for(int i = 0; i < str.length; i++){
System.out.println(str[i]);
}
}
}