java 阿拉伯数字转汉文

在Java中，将阿拉伯数字转换成汉文通常涉及到数值解析和字符串拼接的过程。可以创建一个简单的映射表，将0-9的数字对应到它们的汉字形式。这里是一个简化的示例：

import java.util.HashMap;
import java.util.Map;

public class NumberToChinese {
    private static final Map<Integer, String> numberToChinese = new HashMap<>();
    // 初始化数字与汉字的映射
    static {
        numberToChinese.put(0, "零");
        numberToChinese.put(1, "一");
        numberToChinese.put(2, "二");
        numberToChinese.put(3, "三");
        numberToChinese.put(4, "四");
        numberToChinese.put(5, "五");
        numberToChinese.put(6, "六");
        numberToChinese.put(7, "七");
        numberToChinese.put(8, "八");
        numberToChinese.put(9, "九");
    }

    public static String arabicNumberToChinese(int num) {
        if (num < 0) {
            return "负" + arabicNumberToChinese(-num);
        } else if (num == 0) {
            return numberToChinese.get(num);
        } else if (num < 10) {
            return numberToChinese.get(num);
        } else {
            return arabicNumberToChinese(num / 10) + "十" + (num % 10 > 0 ? numberToChinese.get(num % 10) : "");
        }
    }

    public static void main(String[] args) {
        System.out.println(arabicNumberToChinese(123)); // 输出：一百二十
    }
}

这个例子中，`arabicNumberToChinese`方法递归地处理了整数的每一位，并结合了百位、十位和个位的数字和对应的汉字。