java转换货币为中文

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.Arrays;
public class NumberChange
{
private String strNum;

private String strNumChFormat;

private String strNumTemp;

private int intNumLen;

private String strBegin;

public NumberChange(String strNum)
{
this.strNum = strNum;
}

public boolean check(String strNum)
{
boolean valid = false;

if (strNum.substring(0, 1).equals("0"))
{
this.strNum = strNum.substring(1);
}
try
{
new Double(strNum);
valid = true;
}
catch (NumberFormatException ex)
{
System.out.println("Bad number format!");
}
return valid;
}

public void init()
{
strNumChFormat = "";
intNumLen = strNum.length();
strNumTemp = strNum;
strNumTemp = strNumTemp.replace('1', '一');
strNumTemp = strNumTemp.replace('2', '二');
strNumTemp = strNumTemp.replace('3', '三');
strNumTemp = strNumTemp.replace('4', '四');
strNumTemp = strNumTemp.replace('5', '五');
strNumTemp = strNumTemp.replace('6', '六');
strNumTemp = strNumTemp.replace('7', '七');
strNumTemp = strNumTemp.replace('8', '八');
strNumTemp = strNumTemp.replace('9', '九');
strNumTemp = strNumTemp.replace('0', '零');
strNumTemp = strNumTemp.replace('.', '点');
strBegin = strNumTemp.substring(0, 1);
}

public String readNum()
{
if (check(strNum))
{
init();
try
{
for (int i = 1, j = 1, k = 1; i < intNumLen; i++)
{
if (strNumTemp.charAt(intNumLen - 1) == '零' && i