728. Self Dividing Numbers

A self-dividing number is a number that is divisible by every digit it contains.

For example, 128 is a self-dividing number because 128 % 1 == 0, 128 % 2 == 0, and 128 % 8 == 0.

Also, a self-dividing number is not allowed to contain the digit zero.

Given a lower and upper number bound, output a list of every possible self dividing number, including the bounds if possible.

Example 1:

Input: 
left = 1, right = 22
Output: [1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 22]

大致意思如下
一个数如果能被其各位数整除，则称其为自除数，先要求找出一个范围能的自除数

思路很简单，除以所有自己的各位数即可

public class selfDividingNumbers {
     public static List<Integer> selfDividingNumbers(int left, int right) {
            List<Integer> result = new ArrayList<Integer>();
            for(int i=left;i<=right;i++)
            {
                if(!judgeZero(i))
                {
                    int judge=0;
                    for(int k=0;k<intSize(i).size();k++)
                    {
                        if(i%(intSize(i).get(k))!=0)
                        {
                            judge=1;
                            break;
                        }
                    }
                    if(judge==0)
                    {
                        result.add(i);
                    }
                }
            }
            return result;
        }
     //判断数字是否含有0
     public static Boolean judgeZero(int judge)
     {
        String temp = String.valueOf(judge);
        if(temp.contains("0"))
        {
            return true;
        }
        else
        {
            return false;
        }
     }
    //获取数字每一位
     public static List<Integer> intSize(int judge)
     {
        String temp = String.valueOf(judge);
         List<Integer> a = new ArrayList<Integer>();
        for(int i=0;i<temp.length();i++)
        {
            char t = temp.charAt(i);
            a.add(Character.getNumericValue(t));
        }
        return a;
     }
     
     public static void main(String args[])
     {
         System.out.println(selfDividingNumbers(100,200).toString());
     }
}