JAVA按数字，字母排序，但不包括大小写和汉字排序

public class ABC {
    public static void main(String[] args) {
        new ABC().sortStringArray();
    }
    public void sortStringArray(){
        String[] a = new String[]{"Oscar", "Charlie", "Ryan",
                "Adam", "David","aff","Aff","12","斗鱼","阿里巴巴","aaa","9527"};
        System.out.println();
        System.out.println("字符型数组排序，排序前：");
        for (int i = 0;i < a.length;i++){
            System.out.println(a[i] + ",");
        }
        System.out.println();
        System.out.println("排序后；");
        // 调用数组的静态排序方法sort,且不区分大小写
        Arrays.sort(a,String.CASE_INSENSITIVE_ORDER);
        for (int i = 0;i < a.length;i++){
            System.out.println(a[i] + ",");
        }
    }
}