java各种功能集合和工具.zip

package com.java.function.util; /** * 数字转换成中文大写 */ public class ArabicToChineseUtils { static String[] units = {"", "十", "百", "千", "万", "十万", "百万", "千万", "亿", "十亿", "百亿", "千亿", "万亿"}; static char[] numArray = {'零', '一', '二', '三', '四', '五', '六', '七', '八', '九'}; /** * @param args */ public static void main(String[] args) { int num = 25; String numStr = foematInteger(num); print("num= " + num + ", convert result: " + getNumName(2)); double decimal = 245006.234206; print("============================================================"); String decStr = formatDecimal(decimal); print("decimal= " + decimal + ", decStr: " + decStr); } private static String foematInteger(int num) { char[] val = String.valueOf(num).toCharArray(); int len = val.length; StringBuilder sb = new StringBuilder(); for (int i = 0; i < len; i++) { String m = val[i] + ""; int n = Integer.valueOf(m); boolean isZero = n == 0; String unit = units[(len - 1) - i]; if (isZero) { if ('0' == val[i - 1]) { // not need process if the last digital bits is 0 continue; } else { // no unit for 0 sb.append(numArray[n]); } } else { sb.append(numArray[n]); sb.append(unit); } } return sb.toString(); } private static String formatDecimal(double decimal) { String decimals = String.valueOf(decimal); int decIndex = decimals.indexOf("."); int integ = Integer.valueOf(decimals.substring(0, decIndex)); int dec = Integer.valueOf(decimals.substring(decIndex + 1)); String result = foematInteger(integ) + "." + formatFractionalPart(dec); return result; } private static String formatFractionalPart(int decimal) { char[] val = String.valueOf(decimal).toCharArray(); int len = val.length; StringBuilder sb = new StringBuilder(); for (int i = 0; i < len; i++) { int n = Integer.valueOf(val[i] + ""); sb.append(numArray[n]); } return sb.toString(); } private static void print(Object arg0) { System.out.println(arg0); } public static String getNumName(Integer num){ String numStr = foematInteger(num); return numStr; } }