JAVA实现 输入一串数字，转换成汉字显示

package algo;

import java.util.Scanner;

public class NumTrans {

private static Scanner sc ;

private static String input;

private static String units[] = {"","十","百","千","万","十","百","千","亿"};

private static String nums[] = {"零","一","二","三","四","五","六","七","八","九","十"};

private static String result[] ;

public static void input() {
System.out.println("请输入一串数字：如123456，最多9位");
sc = new Scanner(System.in);
input = sc.nextLine();
}

public static String get(String input) {
String out = "";
result = new String[input.length()];
for(int i=0;i<result.length;i++) {
result[i] = String.valueOf(input.charAt(i));
}
int back = 0;
for(int i=0;i<result.length;i++) {
if(!result[i].equals("0")) {
back = result.length-i-1;
out += nums[Integer.parseInt(result[i])];
out += units[back];
}else {
if(i==result.length-1) {

}else {
if(!result[i+1].equals("0")) {
out += nums[0];
}
}
}
}
return out;
}

public static void main(String[] args) {
// TODO Auto-generated method stub
input();
System.out.println(get(input));
}

}

请输入一串数字：如123456，最多9位
123456789
一亿二千三百四十五万六千七百八十九

请输入一串数字：如123456，最多9位
100230045
一亿零二十三万零四十五