數字轉中文【適用於金額轉換和普通數字轉換】
java
做者:Vashongit
時間:20151015數組
今天在項目裏有個地方須要將數字轉換成中文,而後寫了一個粗糙的工具類(時間緊迫),回到家裏總結了下,寫成一下兩個方法,一個是普通阿拉伯數字轉換成中文,另外一個是金額數字轉換成中文。工具
代碼分塊展現:copy常量數組,而後直接調用寫好的方法便可。測試
1、定義簡體、繁體常量數組spa
/**簡體中文形式**/ private static final String[] numArray = { "零", "一", "二", "三", "四", "五", "六", "七", "八", "九"}; /**繁體中文形式**/ private static final String[] chineseDigits = new String[] { "零", "壹", "貳", "叄", "肆", "伍", "陸", "柒", "捌", "玖"};
/** * 阿拉伯數字轉換成中文,小數點後四捨五入保留兩位. * 使用於整數、小數的轉換. * @param amount * @return */ public static String numToChinese(double amount) { if(amount > 99999999999999.99 || amount < -99999999999999.99) throw new IllegalArgumentException("參數值超出容許範圍 (-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); temp = temp / 10; int numJiao = (int)(temp % 10); temp = temp / 10; int[] parts = new int[20]; int numParts = 0; for(int i=0; ; i++) { if(temp ==0) break; int part = (int)(temp % 10000); parts[i] = part; numParts ++; temp = temp / 10000; } boolean beforeWanIsZero = true; // 標誌「萬」下面一級是否是 0 String chineseStr = ""; for(int i=0; i<numParts; i++) { String partChinese = toChinese(parts[i]); if(i % 2 == 0) { if("".equals(partChinese)) beforeWanIsZero = true; else beforeWanIsZero = false; } if(i != 0) { if(i % 2 == 0) chineseStr = "億" + chineseStr; else { if("".equals(partChinese) && !beforeWanIsZero) // 若是「萬」對應的 part 爲 0,而「萬」下面一級不爲 0,則不加「萬」,而加「零」 chineseStr = "零" + chineseStr; else { if(parts[i-1] < 1000 && parts[i-1] > 0) // 若是"萬"的部分不爲 0, 而"萬"前面的部分小於 1000 大於 0, 則萬後面應該跟「零」 chineseStr = "零" + chineseStr; chineseStr = "萬" + chineseStr; } } } chineseStr = partChinese + chineseStr; } if("".equals(chineseStr)) // 整數部分爲 0, 則表達爲"零" chineseStr = numArray[0]; else if(negative) // 整數部分不爲 0 chineseStr = "負" + chineseStr; chineseStr = chineseStr + ""; if(numFen == 0 && numJiao == 0) { chineseStr = chineseStr + ""; }else if(numFen == 0) { chineseStr = chineseStr +"點"+ numArray[numJiao] + ""; }else { // 「分」數不爲 0 if(numJiao == 0) chineseStr = chineseStr + "零" + numArray[numFen] + ""; else chineseStr = chineseStr +"點"+ numArray[numJiao] + numArray[numFen] + ""; } return chineseStr; } /** * 把一個 0~9999 之間的整數轉換爲漢字的字符串,若是是 0 則返回 "" * @param amountPart * @return */ private static String toChinese(int amountPart) { if(amountPart < 0 || amountPart > 10000) { throw new IllegalArgumentException("參數必須是大於等於 0,小於 10000 的整數!"); } String[] units = new String[] {"", "十", "百", "千"}; int temp = amountPart; String amountStr = new Integer(amountPart).toString(); int amountStrLength = amountStr.length(); boolean lastIsZero = true; //在從低位往高位循環時,記錄上一位數字是否是 0 String chineseStr = ""; for(int i=0; i<amountStrLength; i++) { if(temp == 0) // 高位已無數據 break; int digit = temp % 10; if(digit == 0) { // 取到的數字爲 0 if(!lastIsZero) //前一個數字不是 0,則在當前漢字串前加「零」字; chineseStr = "零" + chineseStr; lastIsZero = true; } else { // 取到的數字不是 0 chineseStr = numArray[digit] + units[i] + chineseStr; lastIsZero = false; } temp = temp / 10; } return chineseStr; }
/** * 適用於金額轉換. * @param amount * @return */ public static String amountToChinese(double amount) { if(amount > 99999999999999.99 || amount < -99999999999999.99) throw new IllegalArgumentException("參數值超出容許範圍 (-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 目前是金額的整數部分 int[] parts = new int[20]; // 其中的元素是把原來金額整數部分分割爲值在 0~9999 之間的數的各個部分 int numParts = 0; // 記錄把原來金額整數部分分割爲了幾個部分(每部分都在 0~9999 之間) for(int i=0; ; i++) { if(temp ==0) break; int part = (int)(temp % 10000); parts[i] = part; numParts ++; temp = temp / 10000; } boolean beforeWanIsZero = true; // 標誌「萬」下面一級是否是 0 String chineseStr = ""; for(int i=0; i<numParts; i++) { String partChinese = partTranslate(parts[i]); if(i % 2 == 0) { if("".equals(partChinese)) beforeWanIsZero = true; else beforeWanIsZero = false; } if(i != 0) { if(i % 2 == 0) chineseStr = "億" + chineseStr; else { if("".equals(partChinese) && !beforeWanIsZero) // 若是「萬」對應的 part 爲 0,而「萬」下面一級不爲 0,則不加「萬」,而加「零」 chineseStr = "零" + chineseStr; else { if(parts[i-1] < 1000 && parts[i-1] > 0) // 若是"萬"的部分不爲 0, 而"萬"前面的部分小於 1000 大於 0, 則萬後面應該跟「零」 chineseStr = "零" + chineseStr; chineseStr = "萬" + chineseStr; } } } chineseStr = partChinese + chineseStr; } if("".equals(chineseStr)) // 整數部分爲 0, 則表達爲"零元" chineseStr = chineseDigits[0]; else if(negative) // 整數部分不爲 0, 而且原金額爲負數 chineseStr = "負" + chineseStr; chineseStr = chineseStr + "元"; if(numFen == 0 && numJiao == 0) { chineseStr = chineseStr + "整"; }else if(numFen == 0) { // 0 分,角數不爲 0 chineseStr = chineseStr + chineseDigits[numJiao] + "角"; }else { // 「分」數不爲 0 if(numJiao == 0) chineseStr = chineseStr + "零" + chineseDigits[numFen] + "分"; else chineseStr = chineseStr + chineseDigits[numJiao] + "角" + chineseDigits[numFen] + "分"; } return chineseStr; }4、測試方法:
public static void main(String[] args) { if(args.length == 0) { System.out.println("轉換演示:"); System.out.println("------------金額測算開始-------------"); System.out.println("25000000000005.999: " + amountToChinese(25000000000005.999)); System.out.println("45689263.626: " + amountToChinese(45689263.626)); System.out.println("0.69457: " + amountToChinese(0.69457)); System.out.println("253.0: " + amountToChinese(253.0)); System.out.println("0: " + amountToChinese(0)); System.out.println("2096: "+ amountToChinese(56)); System.out.println("-----------金額測算結束--------------"); System.out.println("-----------數字測算開始--------------"); System.out.println("10889.72356: "+numToChinese(10889.72356)); System.out.println("12653: "+numToChinese(12653)); System.out.println("215.6387: "+numToChinese(215.6387)); System.out.println("-----------數字測算結束--------------"); } else { System.out.println("轉換結果:"); System.out.println(args[0] + ": " + amountToChinese(Double.parseDouble(args[0]))); } }
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