java阿拉伯数字转换成汉字

public class TransNumber {
		public String translate(String input) {
	        String[] num=new String[] {"零","一","二","三","四","五","六","七","八","九"};
	        String[] unit=new String[]{"","十","百","千","万","亿"};
	        String[] mid=new String[input.length()];
	        String output="";
	        
	        //转换数字
	        for (int i=0; i