如何使用Integer按键字符串组织数组

public class IntegerArrayFromKeypadString {
    public static void main(String[] args) {
        String keypadString = "12345*#";
        int[] integerArray = convertKeypadStringToArray(keypadString);
        for (int num : integerArray) {
            System.out.print(num + " ");
        }
    }

    public static int[] convertKeypadStringToArray(String keypadString) {
        char[] chars = keypadString.toCharArray();
        int[] integerArray = new int[chars.length];
        for (int i = 0; i < chars.length; i++) {
            if (Character.isDigit(chars[i])) {
                integerArray[i] = Character.getNumericValue(chars[i]);
            } else {
                // 处理非数字字符的情况，例如跳过或转换为特定整数值
                // 这里示例将非数字字符转换为-1
                integerArray[i] = -1;
            }
        }
        return integerArray;
    }
}