eclipse中用java实现中文和阿拉伯数字互转的方法如下：
import java.io.*;
import java.lang.IllegalArgumentException;
public class ConvertNum{
/**
* 把金额阿拉伯数字转换为汉字表示，小数点后四舍五入保留两位
* 还有一种方法可以在转换的过程中不考虑连续0的情况，然后对最终的结果进行一次遍历合并连续的零
*/
public static String [] ChineseNum = new String[]{"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};
public static String NumToChinese(double num){
if(num > 99999999999999.99 || num < -99999999999999.99)
throw new IllegalArgumentException("参数值超出允许范围 (-99999999999999.99 ～ 99999999999999.99)！");
boolean negative = false;//正负标号
if(num<0){
negative = true;
num = num*(-1);
}
long temp = Math.round(num*100);
int numFen=(int)(temp%10);//分
temp=temp/10;
int numJiao = (int)(temp%10);//角
temp=temp/10;
//此时temp只包含整数部分
int [] parts =new int[20];//将金额整数部分分为在0-9999之间数的各个部分
int numParts = 0;//记录把原来金额整数部分分割为几个部分
for(int i=0;;i++){
if(temp == 0)
break;
int part = (int)(temp%10000);
parts[i] =part;
temp = temp/10000;
numParts++;
}
boolean beforeWanIsZero = true;//标志位，记录万的下一级是否为0
String chineseStr = "";
for(int i=0;i<numParts;i++){
String partChinese = partConvert(parts[i]);
if(i%2==0){
if("".equals(partChinese))
beforeWanIsZero = true;
else
beforeWanIsZero = false;
}
if(i!=0){
if(i%2==0)//亿的部分
chineseStr = "亿"+chineseStr;
else{
if("".equals(partChinese)&&!beforeWanIsZero)// 如果“万”对应的 part 为 0，而“万”下面一级不为 0，则不加“万”，而加“零”
chineseStr = "零"+chineseStr;
else{
if(parts[i-1]<1000&&parts[i-1]>0)//如果万的部分不为0，而万前面的部分小于1000大于0，则万后面应该跟零
chineseStr = "零"+chineseStr;
chineseStr = "万"+chineseStr;
}
}
}
chineseStr = partChinese + chineseStr;
}
if("".equals(chineseStr))//整数部分为0，则表示为零元
chineseStr = ChineseNum[0];
else if(negative)//整数部分部位0，但是为负数
chineseStr = "负" +chineseStr;
chineseStr = chineseStr + "元";
if(numFen==0&&numJiao==0){
chineseStr = chineseStr +"整";
}
else if(numFen==0){//0分
chineseStr = chineseStr +ChineseNum[numJiao] + "角";
}
else{
if(numJiao==0)
chineseStr = chineseStr + "零" + ChineseNum[numFen] + "分";
else
chineseStr = chineseStr + ChineseNum[numJiao] + "角" + ChineseNum[numFen] + "分";
}
return chineseStr;
}
//转换拆分后的每个部分，0-9999之间
public static String partConvert(int partNum){
if(partNum<0||partNum>10000){
throw new IllegalArgumentException("参数必须是大于等于0或小于10000的整数");
}
String [] units = new String[]{"","拾","佰","仟"};
int temp = partNum;
String partResult = new Integer(partNum).toString();
int partResultLength = partResult.length();
boolean lastIsZero = true;//记录上一位是否为0
String chineseStr = "";
for(int i=0;i<partResultLength;i++){
if(temp == 0)//高位无数字
break;
int digit = temp%10;
if(digit == 0){
if(!lastIsZero)//如果前一个数字不是0则在当前汉字串前加零
chineseStr = "零"+chineseStr;
lastIsZero = true;
}
else{
chineseStr = ChineseNum[digit] + units[i] +chineseStr;
lastIsZero = false;
}
temp =temp/10;
}
return chineseStr;
}
public static void main(String args []){
double num = 0;
System.out.println("请输入金额数字,-1退出");
try{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
num = Double.parseDouble(br.readLine());
}catch(IOException e){
System.out.println(e.toString());
}
while(num!=-1){
System.out.println(num+NumToChinese(num));
try{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
num = Double.parseDouble(br.readLine());
}catch(IOException e){
System.out.println(e.toString());
}
}
System.out.println("其他测试：");
System.out.println("100120: " + NumToChinese(100120));
System.out.println("25000000000005.999: " + NumToChinese(25000000000005.999));
System.out.println("45689263.626: " + NumToChinese(45689263.626));
System.out.println("0.69457: " + NumToChinese(0.69457));
System.out.println("253.0: " + NumToChinese(253.0));
System.out.println("0: " + NumToChinese(0));
}
}