汉字表示数字，带单位（十百千万亿）

//A.java

public class A {

	public static void main(String[] args) {
		int a = 1234567890;
		System.out.println(last(exec(a)));
	}

	//独立数值+位数
	public static String exec(int num) {
		String r = "";
		String n = String.valueOf(num);
		for (int i = 0; i < n.length(); i++) {
			r += change(Integer.parseInt(String.valueOf((String.valueOf(n).charAt(i)))), 10 - i);
		}

		return r;
	}

	//数值+位置 汉化
	public static String change(int n, int l) {
		String str = "";
		switch (n) {
		case 0:
			str += "零";
			break;
		case 1:
			str += "一";
			break;
		case 2:
			str += "二";
			break;
		case 3:
			str += "三";
			break;
		case 4:
			str += "四";
			break;
		case 5:
			str += "五";
			break;
		case 6:
			str += "六";
			break;
		case 7:
			str += "七";
			break;
		case 8:
			str += "八";
			break;
		case 9:
			str += "九";
			break;
		}

		switch (l) {
		case 1:

			break;
		case 2:
			str += "十";
			break;
		case 3:
			str += "百";
			break;
		case 4:
			str += "千";
			break;
		case 5:
			str += "万";
			break;
		case 6:
			str += "十";
			break;
		case 7:
			str += "百";
			break;
		case 8:
			str += "千";
			break;
		case 9:
			str += "亿";
			break;
		case 10:
			str += "十";
			break;
		}

		return str;
	}
	
	//完善
	public static String last(String str){
		String l=str;
		while(l.indexOf("一十")>=0&&l.indexOf("一十")<l.length()){
		l=l.replace("一十", "十");
		}
		while(l.indexOf("零零")>=0&&l.indexOf("零零")<l.length()){
		l=l.replace("零零", "零");
		}
		if(l.charAt(l.length()-1)=='零'){
			l=l.substring(0,l.length()-1);
		}
		return l;
	}
}

 

运行结果：

 

十二亿三千四百五十六万七千八百九十