TransMoney

法一：自己

//只能精确到千亿位，老师的可以随意位
package week;
import java.util.*;
public class TransMoney {
	public static void main(String []args){
		char []digit={'零','一','二','三','四','五','六','七','八','九'};
		char []loc={'千','百','十','亿','千','百','十','万','千','百','十','元'};
		Scanner reader=new Scanner(System.in);
		String data;
		while(reader.hasNext()){
			data=reader.next();
			int start;
			char temp[]=new char[data.length()*2];
			for(int i=0;i<data.length();i++){
				temp[i*2]=digit[data.charAt(i)-'0'];
			}
			start=12-data.length();
			for(int i=start,j=1;i<loc.length;i++,j+=2){
				temp[j]=loc[i];
			}
		    String result=new String(temp);
			result=result.replaceAll("零[千百十]","零");
			result=result.replaceAll("零零零零亿","");
			result=result.replaceAll("零零零零万","");
			result=result.replaceAll("零零零零元","零元");
			result=result.replaceAll("零+","零");
			result=result.replaceAll("零亿","亿");
			result=result.replaceAll("零万","万");
			result=result.replaceAll("零元","元");
			System.out.println(result);
		}
	}
}

法二：老师

package week;
import java.util.*;
public class TransMoney2{
	public static void main(String []args){
		char []digit={'零','一','二','三','四','五','六','七','八','九'};
		char []loc={'亿','千','百','十','万','千','百','十'};
		Scanner reader=new Scanner(System.in);
		String data;
		while(reader.hasNext()){
			data=reader.next();
			char temp[]=new char[data.length()*2];
			for(int i=0;i<data.length();i++){
				temp[i*2]=digit[data.charAt(i)-'0'];
			}
			for(int i=temp.length-3,j=7;i>=1;i-=2,j=j==0?7:--j){
			    temp[i]=loc[j];
			}
			temp[temp.length-1]='元';
		    String result=new String(temp);
		    result=result.replaceAll("零[千百十]","零");
			result=result.replaceAll("零零零零亿","");
			result=result.replaceAll("零零零零万","");
			result=result.replaceAll("零零零零元","零元");
			result=result.replaceAll("零+","零");
			result=result.replaceAll("零亿","亿");
			result=result.replaceAll("零万","万");
			result=result.replaceAll("零元","元");
			System.out.println(result);
		}
	}
}