ZZULIOJ-1106: palindrome (function topic) (Java)

Subject description:

A positive integer, if read from left to right (sequence number referred to as positive) and read from right to left (reverse call number) is the same, such a number is called palindrome. Input two integers m and n (m <n), the output interval between the palindrome [m, n].  

Input: 

Enter two positive integers m and n, input to ensure that m <n.  

Output: 

In ascending order, the output m number of palindromic between n, the number behind each a space.  

Sample input: 

100 200 

Sample output: 

101 111 121 131 141 151 161 171 181 191  

code: 

import java.util.*;
public class Main
{
	
	public static void main(String[] args)
	{
		Scanner input=new Scanner(System.in);
		int m=input.nextInt();
		int n=input.nextInt();
		int sum=0;
		for(int i=m;i<=n;i++)
		{
			int x=i;
			while(x!=0)
			{
				sum=sum*10+x%10;
				x/=10;
			}
			if(sum==i)
				System.out.print(i+" ");
			sum=0;
		}
		input.close();
	}
}