键盘输入数字,自动排序后输出

import java.util.Arrays;
import java.util.Scanner;

/*输入n个数字,后排序*/
public class Order1{
public static void main(String[]args){
Scanner in = new Scanner(System.in);
System.out.println("请输入你要输入的数字个数:n =");
int n = in.nextInt();
double arr[] = new double
;
for(int i = 0;i < n;i++){
System.out.println("请输入arr["+(i+1)+"]=");
arr[i] = in.nextDouble();
}
Arrays.sort(arr);
for(int i = 0;i < n;i++){
System.out.print(arr[i]+" ,");
}
System.out.println();
for(double m:arr){
System.out.print(m+" ,");
}
}
}