java数字转汉字大写（全）
MoneyUtil.java
public class MoneyUtil { public static String[] chineseDigits = new String[] { "零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"}; /** * 把金额转换为汉字表示的数量，小数点后四舍五入保留两位 * @param amount * @return */ public static String amountToChinese(double amount) { if(amount > 99999999999999.99 || amount < -99999999999999.99) throw new IllegalArgumentException("参数值超出允许范围 (-99999999999999.99 ～ 99999999999999.99)！"); boolean negative = false; if(amount < 0) { negative = true; amount = amount * (-1); } long temp = Math.round(amount * 100); int numFen = (int)(temp % 10); // 分 temp = temp / 10; int numJiao = (int)(temp % 10); //角 temp = temp / 10; //temp 目前是金额的整数部分 int[] parts = new int[20]; // 其中的元素是把原来金额整数部分分割为值在 0~9999 之间的数的各个部分 int numParts = 0; // 记录把原来金额整数部分分割为了几个部分（每部分都在 0~9999 之间） for(int i=0; ; i++) { if(temp ==0) break; int part = (int)(temp % 10000); parts[i] = part; numParts ++; temp = temp / 10000; } boolean beforeWanIsZero = true; // 标志“万”下面一级是不是 0 String chineseStr = ""; for(int i=0; i MoneyFormat.java class MoneyFormat{ private final String [] pattern ={"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"}; private final String [] cPattern ={"","拾","佰","仟","万","拾","佰","仟","亿"}; private final String [] cfPattern = {"","角","分"}; private final String ZEOR = "零"; public MoneyFormat(){ System.out.println("run..."); } public String format(String moneyString){ int dotPoint = moneyString.indexOf("."); //判断是否为小数 String moneyStr; if(dotPoint != -1){ moneyStr = moneyString.substring(0,moneyString.indexOf(".")); } else{ moneyStr = moneyString; } StringBuffer fraction = null; //小数部分的处理,以及最后的yuan. StringBuffer ms = new StringBuffer(); for(int i = 0;i < moneyStr.length();i++){ ms.append(pattern[moneyStr.charAt(i) - 48]); //按数组的编号加入对应大写汉字 } int cpCursor = 1; for(int j = moneyStr.length() - 1;j > 0;j--){ ms.insert(j,cPattern[cpCursor]); //在j之后加字符,不影响j对原字符串的相对位置 //只是moneyStr.length()不断增加 //insert(j,"string")就在j位置处插入,j=0时为第一位 cpCursor = cpCursor == 8?1:cpCursor + 1; //亿位之后重新循环 } while(ms.indexOf("零拾") != -1){ //当十位为零时用一个"零"代替"零拾" //replace的起始于终止位置 ms.replace(ms.indexOf("零拾"),ms.indexOf("零拾") + 2,ZEOR); } while(ms.indexOf("零佰") != -1){ //当百位为零时,同理 ms.replace(ms.indexOf("零佰"),ms.indexOf("零佰") + 2,ZEOR); } while(ms.indexOf("零仟") != -1){ //同理 ms.replace(ms.indexOf("零仟"),ms.indexOf("零仟") + 2,ZEOR); } while(ms.indexOf("零万") != -1){ //万需保留，中文习惯 ms.replace(ms.indexOf("零万"),ms.indexOf("零万") + 2,"万"); } while(ms.indexOf("零亿") != -1){ //同上 ms.replace(ms.indexOf("零亿"),ms.indexOf("零亿") + 2,"亿"); } while(ms.indexOf("零零") != -1){//有连续数位出现零，即有以下情况，此时根据习惯保留一个零即可 ms.replace(ms.indexOf("零零"),ms.indexOf("零零") + 2,ZEOR); } while(ms.indexOf("亿万") != -1){ //特殊情况，如:100000000,根据习惯保留高位 ms.replace(ms.indexOf("亿万"),ms.indexOf("亿万") + 2,"亿"); } while(ms.lastIndexOf("零") == ms.length()-1){ //当结尾为零j，不必显示,经过处理也只可能出现一个零 ms.delete(ms.lastIndexOf("零"),ms.lastIndexOf("零") + 1); } int end; if((dotPoint = moneyString.indexOf(".")) != -1 ){ //是小数的进入 String fs = moneyString.substring(dotPoint + 1,moneyString.length()); if(fs.indexOf("00") == -1 || fs.indexOf("00") >= 2){//若前两位小数全为零，则跳过操作 end = fs.length() > 2?2:fs.length(); //仅保留两位小数 fraction = new StringBuffer(fs.substring(0,end)); for(int j = 0;j < fraction.length();j++){ fraction.replace(j,j+1,this.pattern[fraction.charAt(j) - 48]); //替换大写汉字 } for(int i = fraction.length();i > 0;i--){ //插入中文标识 fraction.insert(i,cfPattern[i]); } fraction.insert(0,"元"); //为整数部分添加标识 } else{ fraction = new StringBuffer("元整"); } } else{ fraction = new StringBuffer("元整"); } ms.append(fraction); //加入小数部分 return ms.toString(); } public static void main(String [] ar){ //System.out.println(new MoneyFormat().format("10005022.123009")); System.out.println(new MoneyFormat().format("999")); } } 一共两个，我都试过了，都行！贴上来跟大家分享一下！