Java整数的每一个数放到数组

可以考虑这么做，稍微完善了一下。希望能够帮到你。

public class TakeOutEachDigitProject {
    public int[] takeOutEachDigit(int t) {
        int[] m = new int[10];//假设整数有这么多位数字
        int i = 0;
        if (t > 0) { // 正整数
            while (t > 0) {
                m[i] = t % 10;
                t = t / 10;
                i++;
            }

        } else if (t < 0) { // 负整数
            t = t
                    * (-1);
            while (t > 0) {
                m[i] = t % 10;
                t = t / 10;
                i++;
            }

        } else { // 0
            i = 1;
            m[i] = 0;
        }
        int[] n = Arrays.copyOfRange(m, 0, i);// 截断数组
        return n;

    }
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        System.out.println("input:");
        int a = scan.nextInt();
        int[] b = new TakeOutEachDigitProject().takeOutEachDigit(a);
        for (int i = b.length - 1; i >= 0; i--) {
            System.out.print(b[i]
                    + ",");
        }

    }

}